Donald P. Butler, Professor
 

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Donald Philip Butler

University of Texas at Arlington

Electrical Engineering Dept.

PO Box 19072

500 S. Cooper St .

Arlington , TX 76019

Office: (817) 272-1305

Fax: (817) 272-7458

E-mail: dbutler@uta.edu

URL: http://www-ee.uta.edu/eedept/Faculty/Dbutler.htm

  Personal Information:

Citizenship:               U.S. Citizen

Family Status:           married with two children

Research Interests:

 The current focus of my research involves materials and devices for uncooled infrared detection, microsensors, and other microelectromechanical devices. My research involves uncooled microbolometer detectors; noise investigations in sensors; integrated microsensors; wireless sensor networks, and the development of MEMs sensors on “plastic” (polymer) substrates.

Work Experience:

  Sept. 2002                  Professor

-Present                     University of Texas at Arlington , Arlington , TX

 

Sept. 2001                  Professor

-Aug. 2002                 Electrical Engineering Dept., Southern Methodist University , Dallas , TX 75275

 

Sept. 1993                  Associate Professor

-Aug. 2001                 Electrical Engineering Dept., Southern Methodist University , Dallas , TX 75275

 

Jan. 1987                    Assistant Professor

-Aug. 1993                 Electrical Engineering Dept., Southern Methodist University , Dallas , TX 75275

 

Sept. 1985                  Research Associate

-Dec. 1986                  Dept. of Electrical Engineering, University of Rochester , Rochester , NY . 14627

 

Education:  

1986                Ph.D. in Electrical Engineering

                        University of Rochester , Rochester , NY .

1981                M.S. in Electrical Engineering

                        University of Rochester , Rochester , NY .

1980                B.A.Sc. in Engineering Science: Physics Option

                        University of Toronto , Toronto , Ontario , Canada

 

Honors and Awards:  

2006                        UT Arlington Research Excellence in Engineering Award

2004                                    Student Mukti Rana received Outstanding Student Paper Award for paper entitled: “RF Sputtered  SixGe1-x  and SixGe1-xOy Thin Films For Microsensor Applications,” presented at 2004 IEEE Emerging Technologies Conference, Richardson , Texas , Oct. 8th, 9th, 2004.

2004                       Laser Focus World “Commendation for Excellence in Technical Communications” for the article “Flexible Microbolometers Promise Smart Fabrics with Embedded Sensors.

2000-2005               IEEE Electron Device Society Distinguished Lecturer

2000                        IEEE Third Millennium Medal

1999                        Dallas Chapter of the IEEE Electron Device Society Outstanding Service Award.

1998                        Graduate Student Council Outstanding Faculty in Electrical Engineering Award

1997                        Graduate Student Council Outstanding Faculty in Electrical Engineering Award

1996                        Dallas Chapter of the IEEE Electron Device Society Outstanding Service Award.

1993-Present         Listed in Marquis' Who's Who in Science and Engineering

1990                        Dallas Chapter of the IEEE Electron Device Society Outstanding Service Award.

1983-1985               Research Assistantship, Dept. of Electrical Engineering, University of Rochester .

1981-1983               Fellowship, Laboratory for Laser Energetics, University of Rochester .

1980-1981               Fellowship, Dept. of Electrical Engineering, University of Rochester .

1976                        Ontario Scholar

 

Publicity Related to Research:

 

1.        Provided an interview to CNN News concerning the “Technological Impact of High-Tc Superconductors” in 1987.

2.        “New Semiconductor IR Detector Combines Room-Temperature Operation with High Sensitivity and Low Cost,” Research Corporation Technologies News Release, August 8, 1997.

3.        “Infrared detector uses YBaCuO as active material -- Well-known superconductor has ideal characteristics for night-vision applications,” By Gail Robinson, EE Times, December 1, 1997.

4.        “Yttrium-based material forms uncooled IR detectors,” By Kristin Lewotsky, PhotonicsOnline, January 26, 1998.

5.        “Thin films make new IR detector,” Optical Materials and Engineering News, February 1998.

6.        “Infrared innovation,” By Alan Goldstein, Dallas Morning News, Business Section, March 23, 1998.

7.        “Demand for 'uncool' infrared imaging heats up,” Technology Business, Nov/Dec 1998.

8.         “Uncooled IR Detector Could Enable Cheaper Cameras,” Photonics Technology World, Michael D. Wheeler, March 1999.

9.        “Faculty Members' Semiconducting Work Draws Attention from NASA,” The Daily Campus, Jonathan Dewbre, October 19, 1999.

10.     “From the Hilltop to the Marketplace,” SMU Research Magazine, Ellen Mayou, vol. 7 2000.

11.     “Micromirrors improve detectors,” Photonics Technology News, September, 2001.

12.     “Detect and Defend,” Dallas Morning News, 31 December 2001.

13.     “UTA researchers develop sensors to think smart” by Gail Bennison, Fort Worth Business Press, 30 Jan. 2004

14.     KTVT Channel 11 News Story, 7 March 2004.

15.     “Beyond Sensible Shoes: Flexible Fabric of Microsensors May Lead to Smart Clothing,” by Alexandra Robbins, PC Magazine, page 19, 2 April 2004. (also appearing on ABC news website)

16.     “Smart Skin: A sixth sense, and a seventh, and an eighth…” by Cade Metz, PC Magazine, page 111, July 2004.

17.     “14 Brilliant Minds” by Gail Bennison, Fort Worth Texas Magazine, Apr. 2008.

18.     UTA Gateway Video Feature: http://www.youtube.com/UTArlingtonMavericks

 

Theses:

1985        Ph.D. Thesis, “Nonequilibrium Behavior of the Dynamic Resistive Transition in Superconducting Thin Films,” Advised by Thomas Hsiang, University of Rochester .

1980        B.A.Sc. Thesis, “Optical Modulation in Communications,” Advised by Boris Stoicheff, University of Toronto .

 

Patents:

  1.        “Uncooled YBaCuO Thin Film Infrared Detector”, by Donald P. Butler, Zeynep Çelik-Butler, and Pao-Chuan Shan, US Patent #5,572,060. Issued 5 Nov. 1996.

2.        “Amorphous YBaCuO Thin Film Infrared Bolometer for Uncooled Infrared Detection”, by Donald P. Butler, Zeynep Çelik-Butler, and Pao-Chuan Shan, US Patent #5,672,903. Issued 30 Sept. 1997.

3.        “Uncooled YBaCuO Thin Film Infrared Detector,” by Donald P. Butler, Zeynep Çelik-Butler, Agha Jahanzeb and Pao-Chuan Shan, US Patent #5821598 issued 13 Oct., 1998.

4.        “Uncooled Amorphous YBaCuO Thin Film Infrared Detector” by Donald P. Butler, Zeynep Çelik-Butler, Agha Jahanzeb and Pao-Chuan Shan, US Patent #:5850098, issued 15 Dec., 1998.

5.        Canada Serial No. 2,212,002, filed 12/29/95

6.        Japan Serial No. 8-523521, filed 12/19/95

7.        European Serial No. 95944126.2, filed 12/29/95, designating: France , Great Britain , Germany , Ireland , Netherlands .

8.        “Thin Flexible Sensor,” U.S. Provisional Patent Application, Serial No.: 60/944,479, Filing Date: June 15, 2007, by Zeynep Celik-Butler and Donald P. Butler

 

Books and Book Chapters:

 

1.        Z. Çelik- Butler and D.P. Butler, “Uncooled IR Detector Arrays,” Invited, Wiley Encyclopedia of Electrical and Electronics Engineering, 1998 Edition, Editor: John G. Webster. ISBN: 0-471-13946-7.

2.        D. P. Butler, Z. Çelik-Butler and Roman Sobolewski, “Yttrium Barium Copper Oxide as an Infrared Sensing Material.” Invited, Handbook of Advanced Electronic and Photonic Materials, by Academic Press, 2000, Editor: H. S. Nalwa, ISBN:0-12-513745-1.

3.        Z. Çelik-Butler and D.P. Butler, “Uncooled IR Detector Arrays,” Invited, Engineering Superconductivity, Peter J. Lee Editor, Wiley-Interscience, 2001, ISBN 0-471-41116-7.

4.        R. Sobolewski and D.P. Butler, Invited, “Infrared Optical Sensors”, Chap. 5.2 in Handbook of Superconducting Materials, D. Cardwell and D. Ginley, Editors-in-chief, Institute of Physics, Bristol, UK, BS1 6BE, 2002, ISBN: 0-750-30432-4.

5.        Zeynep Celik-Butler and Donald P. Butler, “Smart Skin,” 2007 Yearbook of Science and Technology, McGraw-Hill.

6.        Zeynep Celik-Butler and Donald P. Butler, “Smart Skin: Multifunctional Sensor Arrays on Flexible Substrartes,” Encyclopedia of Nanoscience and Nanotechnology, Edited by H.S. Nalwa, American Scientific Publishing. (to be published)

 

Journal Publications:

 

1.        “Transient Response of Tin Microstrips to Supercritical Current Pulses,” by D.P. Butler, T.Y. Hsiang, and G.A. Mourou, IEEE Trans. on Magnetics MAG-19, 644 (1983).

2.        “Picosecond Pulse Generation Capability of Optically Driven Superconducting Thin Films,” by R. Sobolewski, C.V. Stancampiano, G. Mourou, and D. Butler, Phys. Stat. Sol. (a) 83, K203 (1984).

3.        “Transient Relaxation of the Normal State Resistance of Tin Microstrips in the Presence of Current Bias,” by D.P. Butler, T.Y. Hsiang, and G.A. Mourou, J. of Low Temp. Phys. 61, 69 (1985).

4.        “Dynamics of the Intermediate State in Nonequilibrium Superconductors,” by R. Sobolewski, D.P. Butler, T.Y. Hsiang, C.V. Stancampiano, and G.A. Mourou, Phys. Rev. B 33, 4604 (1986).

5.        “Phase-slip States in the Normal-Superconducting Relaxation of Current Biased Microstrips,” by D.P. Butler and T.Y. Hsiang, J. of Low Temp. Phys. 66, 379 (1987).

6.        “Dielectric Waveguide with YBa2Cu3O6+x Boundary Layer at 94 GHz,” by C.-L. Huang, D.P. Butler, and J. K. Butler, J. of Appl. Phys. 67 (6), 3194 (1990).

7.        “Dielectric Waveguide Resonator with a Superconductive Boundary Layer,” by C.-L. Huang and D. P. Butler, IEEE Trans. on Magn. MAG-27, 1272, (1991).

8.        “Fabrication and Electrical Characterization of NbN-Interfacial Layer-Si Contact Diodes,” by S. Wu and D. P. Butler, IEEE Trans. on Magn. MAG-27, 3276, (1991).

9.        “Measurements of Noise and Temperature Coefficient of Resistance on YBa2Cu3O7-d Thin Films in Magnetic Field,” by Z. Çelik-Butler, W. Yang, and D. P. Butler, Appl. Phys. Lett. 60, 246, (1992).

10.     “Conversion Loss of a  YBa2Cu3O7 Grain Boundary Mixer at 20 Gigahertz,” by D. P. Butler , W. Yang, J. Wang, A. Bhandari, and Z. Çelik-Butler, Applied Physics Letters 61, 333, (1992).

11.     “Fabrication of NbN Thin Films by Reactive Sputtering,” by W. N. Maung, D. P. Butler and C.-L. Huang, J. of Vac. Sc. Technol. A 11(3), 615, (1993).

12.     “Two-Level Switching Noise in YBa2Cu3O7 Microbridges,” by D. P. Butler, Z. Çelik-Butler, and J. Wang, Solid State Electronics 36, 1507, (1993).

13.     “Conversion Gain and Noise of YBa2Cu3O7 Microbridge Weak Links,” by D. P. Butler, J. Wang, A. Bhandari, and Z. Çelik-Butler, IEEE Transactions on Applied Superconductivity 3, 2269, (1993).

14.     “Performance of MMIC Components at Cryogenic Temperatures,” by A. Bhandari, D. P. Butler and K. K. Agarwal, Optical and Microwave Technology Letters 6, 520-525, July, (1993).

15.     “Monolithic coplanar strip YBaCuO transmission lines fabricated by the laser-writing patterning technique” by  D. P. Butler, W. N. Maung, R. Sobolewski, W. Xiong, and, W. Kula, IEEE Microwave and Guided Wave Letters 4, 132, (1994).

16.     “Monolithic Y-Ba-Cu-O structures fabricated using the laser-writing patterning technique” by   R. Sobolewski, W. Xiong, W. Kula, W. N. Maung, and D. P. Butler, Superconductor Science and Technology 7, 300, (1994).

17.     “Modelling of High-Tc Superconductor Parametric Amplifiers and Mixers”, by J. Wang, D. P. Butler, and Z. Çelik-Butler, Physica C 231, 271, (1994).

18.     “Studies and Implications of the Hall Effect in Superconducting and Semiconducting YBa2Cu3O7-d Thin Films,” A. Jahanzeb,  Z. Çelik-Butler, P.-C. Shan, and D. P. Butler, J. of Appl. Phys. 78, 6658, (1995).

19.     “Semiconducting YBaCuO Thin Films for Uncooled Bolometers,” P.-C. Shan, Z. Çelik-Butler, D.P. Butler and A. Jahanzeb, J. of Appl. Phys. 78, 7334, (1995).

20.     “The investigation of semiconducting YBaCuO thin films: A new Room temperature bolometer,” P.C. Shan, Z. Çelik-Butler, D.P. Butler, A. Jahanzeb, C.M. Travers, W. Kula, and R. Sobolewski, J. Appl. Phys. 80, 7118 (1996).

21.     “Charge Transport in Amorphous and Tetragonal Semiconducting YBaCuO Films,” Z. Çelik-Butler, P.C. Shan, D.P. Butler, A. Jahanzeb, C.M. Travers, W. Kula, and R. Sobolewski, Solid State Electronics 41, 895 (1997).

22.     “Hall-Effect in Semiconducting Epitaxial and Amorphous YBaCuO Thin Films,” A. Jahanzeb, P.C. Shan, D.P. Butler, Z. Çelik-Butler, W. Kula, and R. Sobolewski, J. Appl. Phys. 81, 6866 (1997).

23.      “A semiconductor YBaCuO Microbolometer for room temperature IR imaging,” A. Jahanzeb, C. M. Travers, Z. Çelik-Butler, D. P. Butler, and S. G. Tan, IEEE Trans. on Electron Devices ED-44, 1795 (1997).

24.     “Fabrication Semiconducting YBaCuO Surface-Micromachined Bolometer Arrays,” C.M. Travers, A. Jahanzeb, D.P. Butler, and Z. Çelik-Butler, IEEE/ASME Journal of Microelectromechanical Systems 6, 271(1997).

25.      “Strong Pyroelectric Response in Semiconducting Y-Ba-Cu-O and its application to Uncooled Infrared Detection,” A. Jahanzeb, C.M. Travers, D.P. Butler, Z. Çelik-Butler, and J.E. Gray, Applied Physics Letters 70, 3495 (1997).

26.     “Dielectric and Pyroelectric Response in Nb/Semiconducting Y-Ba-Cu-O/Nb Structures,” J.E. Gray, Z. Çelik-Butler, D.P. Butler, and A. Jahanzeb, Ferroelectrics 209, 517 (1998).

27.     “Micromachined YBCO capacitor structures as uncooled pyroelectric infrared detectors,” D. P. Butler, Z. Çelik-Butler, A. Jahanzeb, J. E. Gray, and C. M. Travers, J. of Appl. Phys. 84, 1680 (1998).

28.     “Semiconducting YBaCuO Pyroelectric Infrared Detectors on Suspended Si3N4 Films,” J.E. Gray, D.P. Butler, and Z. Çelik-Butler, Electronics Letters 34, 2164 (1998).

29.     “Pyroelectric Effect in Semiconducting Y-Ba-Cu-O Thin Films under Laser Illumination”, D.P. Butler, Z. Çelik-Butler, R. Adam, and R. Sobolewski, J. Appl. Phys. 85, 1075 (1999).

30.     “MgO Sacrificial Layer for Micromachining Uncooled Y-Ba-Cu-O IR Microbolometers,” J.E. Gray, Z. Çelik-Butler, and D.P. Butler, IEEE/ASME Journal of Microelectromechanical Systems 8, 192 (1999).

31.     “Cryogenic Performance of Semiconducting Y-Ba-Cu-O for Infrared Detection,” M. Almasri, D.P. Butler, Z. Çelik-Butler, R. Adam, R. Sobolewski, Supercond. Sci. Technol. 12, 751 (1999).

32.     “Room Temperature Semiconducting YBaCuO Microbolometers with Titanium Absorber,” A. Yaradanakul, Z. Çelik-Butler, and D.P. Butler, International Journal of Advanced Manufacturing 3, 13 (2000).

33.     “Dielectric loss and related noise of pyroelectric modified lead titanate arrays,” V.N. Leonov, D. P. Butler, Z. Çelik-Butler, K. R. Udayakumar, C. M. Hanson, and H. R. Beratan, Solid State Electronics 45, 735 (2001).

34.      “Self-supporting uncooled infrared microbolometers with low-thermal mass,” M. Almasri, D.P. Butler, and Z. Çelik-Butler, IEEE/ASME Journal of Microelectromechanical Systems 10, 469 (2001).

35.     "Two-color Thermal Detector with Thermal Chopping for Infrared Focal Plane Arrays,” V.N. Leonov and D.P. Butler, Applied Optics 40,  2601 (2001).

36.     "Investigation of the Temperature Coefficient of Resistance and Crystallization of YBaCuO Thin Films Using Pulsed Laser Annealing," A. Yildiz, Z. Çelik-Butler, D.P. Butler, and C.-U. Kim, Journal of Vacuum Science and Technology B 20, 548 (2002).

37.     "Uncooled Infrared Microbolometers on Flexible Substrates," A. Yaradanakul, Z. Celik-Butler, and D.P. Butler, IEEE Transactions on Electron Devices 49, 930 (2002).

38.     " Uncooled Multimirror Broad-Band IR Microbolometers," M. Almasri, Z. Çelik-Butler, D.P. Butler, A. Yaradanakul, and A. Yildiz, IEEE/ASME Journal of Microelectromechanical Systems 11, 528 (2002).

39.     “Crystallization and Pyroelectric Effect of Semiconducting YBaCuO Thin Films Deposited at Different Temperatures,” A. Yildiz, D.P. Butler, Z. Celik-Butler, and C.-U. Kim, Journal of Vacuum Science and Technology B 21, pp. 837-842 (2003).

40.     “Microbolometers on a Flexible Substrate for Infrared Detection,” A. Yildiz, Z. Çelik-Butler, and D.P. Butler, IEEE Sensors Journal 4, pp. 112-117 (2004).

41.     “Flexible microbolometers promise smart fabrics with embedded sensors,” A. Mahmood, D. Butler, and Z. Celik-Butler, Laser Focus World 40, pp.99-103 April 2004. (invited)

42.     Shadi A. Dayeh, Donald P. Butler, and Zeynep Celik-Butler, “Micromachined infrared bolometers on flexible polyimide substrates,” Sensors and Actuators A 118, pp. 49-56 (2005). Erratum: Sensors and Actuators A 125, pp. 597-598 (2006).

43.     Mukti M. Rana and Donald P. Butler, “RF Sputtered SixGe1-x and SixGe1-xOy Thin Films For Uncooled Infrared Detectors,” Thin Solid Films 514, pp. 355-360 (2006).

44.     Viniyak Sharmana, Sharmita Das, Zeynep Celik-Butler, and Donald P. Butler, “Micromachined integrated pressure-thermal sensors on flexible substrates,” Journal of Micromechanics and Microengineering 16, pp. 1984-1992 (2006).

45.     Aamer Mahmood, Donald P. Butler, and Zeynep Celik-Butler, “Micromachined bolometers on polyimide,” Sensors and Actuators A 132, pp. 452-459 (2006).

46.     Zeynep Celik- Butler and Donald P. Butler, “Flexible Sensors – A Review,” Journal of Nanoelectronics and Optoelectronics 1, pp. 194-202(9) (2006).

47.     Aamer Mahmood, Donald P. Butler , Zeynep Celik-Butler, “Device-level vacuum-packaging scheme for microbolometers on rigid and flexible substrates,” IEEE Sensors Journal 7, pp. 1012-1019 (2007).

48.     Sandeep Kumar, Murali M. Chitteboyina, and Donald P. Butler, “Fabrication of CMOS compatible semiconducting Y-Ba-Cu-O uncooled infrared microbolometer arrays,” Journal of Vacuum Science and Technology B 25, pp.1315-1320 (2007).

49.     Mukti M. Rana and Donald P. Butler, “High Responsivity a-Si1-xGexOy Microbolometers,” IEEE Sensors Journal 7, pp. 1413-1419 (2007).

50.     Murali Chitteboyina and Donald P. Butler, “Tunable Infrared Microspectrometer Based upon Bragg Grating,” IEEE Journal of Quantum Electronics 44, pp. 182-184 (2008).

51.     Mukti M. Rana and Donald P Butler, “Noise Reduction of a-Si1-xGexOy Microbolometers by Forming Gas Passivation,” accepted for publication in Thin Solid Films.

 

Electronic Publications:

 

1.        “Room Temperature Operation of a YBaCuO Microbolometer,” Z. Çelik-Butler, D. P. Butler, A. Jahanzeb, C. M. Travers, J. E. Gray, SPIE CD-ROM series, Vol 1: Infrared Technology. edited by Dr. Glenn D. Boreman, 1998.

2.        “IR Detection at Room Temperature Using Semiconducting YBaCuO,” D. P. Butler, A. Jahanzeb, P. C. Shan, C. M. Travers, Z. Çelik-Butler, SPIE CD-ROM series, Vol 1: Infrared Technology. edited by Dr. Glenn D. Boreman, 1998.

3.        "Investigation of the Temperature Coefficient of Resistance and Crystallization of YBaCuO Thin Films Using Pulsed Laser Annealing," A. Yildiz, Z. Çelik-Butler, D.P. Butler, and C.-U. Kim,  Virtual Journal of Applications of Superconductivity, 1 April 2002.

4.        “Crystallization and Pyroelectric Effect of Semiconducting YBaCuO Thin Films Deposited at Different Temperatures,” A. Yildiz, D.P. Butler, Z. Celik-Butler, and C.-U. Kim,  Virtual Journal of Applications of Superconductivity, 1 April 2003.

5.        Sandeep Kumar, Murali M. Chitteboyina, and Donald P. Butler, “Fabrication of CMOS compatible semiconducting Y-Ba-Cu-O uncooled infrared microbolometer arrays,” Virtual Journal of Applications of Superconductivity, 1 August 2007

 

 

Refereed Conference Papers: (These papers require review and acceptance by experts in the field)

 

1.        “Transient Response of Tin Microstrips to Supercritical Current Pulses,” by D. P. Butler, T. Y. Hsiang, and G. A. Mourou, 1982 Applied Superconductivity Conference, Knoxville, Tenn., November, 1982.

2.        “Generirovanje pikosekundnych elektriczeskich impulsov w tonkich swerchprowodjaszczich pljonkach opticzeskoj,” (in Russian) (“Picosecond electrical pulse generation in optically pumped superconducting thin films”), by R. Sobolewski, C.V. Stancampiano, and D. Butler,   Proceedings of XXI International Conference on Low Temperature Physics and Techniques, Warna, Bulgaria, 1983, p.293.

3.        “Fabrication of High-Tc Superconductor YBaCuO Thin Films by Sputter Deposition from a Single Powder Target,” by S. K. Dubey and D. P. Butler, presented at The Electrochemical Society - American Vacuum Society 8th Annual Symposium on Electronic Materials, Processing and Characterization, Dallas , Texas , June 5-6, 1989.

4.        “Fabrication and Characterization of Nb-Si Schottky Contact Diodes,” by Songjian Wu and D. P. Butler, Presented at The Electrochemical Society - American Vacuum Society 9th Annual Symposium on Electronic Materials, Processing and Characterization, Dallas , Texas , June 4-5, 1990.

5.        “Fabrication and Patterning of NbN Thin Films by Reactive Sputtering and Plasma Etching,” by W. N. Maung, C.-L. Huang, A. K. Bhandari, T. Nguyen, and D. P. Butler, Presented at The Electrochemical Society - American Vacuum Society 9th Annual Symposium on Electronic Materials, Processing and Characterization, Dallas , Texas , June 4 - 5, 1990.

6.        “Dielectric Waveguide Resonator with a Superconductive Boundary Layer,” by C.-L. Huang and D. P. Butler, Presented at the 1990 Applied Superconductivity Conference, Aspen , CO , Sept. 24-28, 1990.

7.        “Fabrication and Electrical Characterization of NbN-Interfacial Layer-Si Contact Diodes,” by S. Wu and D. P. Butler, Presented at the 1990 Applied Superconductivity Conference, Aspen, CO, Sept. 24-28, 1990.

8.        “Characterization of YBaCuO Thin Films by Low-Frequency Noise Measurements,” by S. Alamgir, W. Yang, J. Wang, Z. Çelik-Butler and D. P. Butler, Presented at the 1990 Applied Superconductivity Conference, Aspen , CO , Sept. 24-28, 1990.

9.        “Microwave Characterization of NbN Thin Films,” by C.-L. Huang, W. N. Maung, and D. P. Butler, Presented at The Electrochemical Society - American Vacuum Society 10th Annual Symposium on Electronic Materials, Processing and Characterization, Dallas , Texas , June 2 - 3, 1991.

10.     “Characterization of YBaCuO Thin Films by Low-Frequency Noise Measurements,” by S. Alamgir, W. Yang, J. Wang, Z. Çelik-Butler and D. P. Butler, Presented at The Electrochemical Society - American Vacuum Society 10th Annual Symposium on Electronic Materials, Processing and Characterization, Dallas, Texas, June 2 - 3, 1991.

11.     “Low-frequency Noise Measurements on YBa2Cu3O7-d Thin Films,” by Z. Çelik-Butler, S. M. Alamgir, W. Yang, J. Wang, and D. P. Butler, Presented at the 1991 International Conference on Noise in Physical Systems and 1/f fluctuations, Kyoto , Japan , November 24-27, 1991.

12.     “Fabrication of NbN-AlOx-NbN Josephson Junctions by reactive rf magnetron sputtering,” by W. N. Maung and D. P. Butler,  Presented at the 1992 Applied Superconductivity Conference, Chicago, Il, Aug. 23-28, 1992.

13.     “Conversion Gain and Noise of YBa2Cu3O7 Microbridge Weak Links,” by D. P. Butler, J. Wang, A. Bhandari, and Z. Çelik-Butler,  Presented at the 1992 Applied Superconductivity Conference, Chicago, Il, Aug. 23-28, 1992.

14.     “Monolithic Y-Ba-Cu-O Electronic Devices Fabricated using the laser-writing patterning technique” by  R. Sobolewski, W. Xiong, W. Kula, W. N. Maung, and D. P. Butler, Proceedings of the 4th International Superconductive Electronics Conference, Boulder, CO, Aug. 11 - 14, 1993.

15.     “Microwave Properties of Monolithic Y-Ba-Cu-O Transmission Line Devices Fabricated by the Laser-Writing Technique” by  W. N. Maung, D. P. Butler, W. Xiong, W. Kula and R. Sobolewski,  Proceedings of the SPIE Symposium on Optoelectronic and Microwave Engineering, edited by R. B. Hammond and R.S. Withers, vol. 2156, pp. 174 - 180, Los Angeles, CA, Jan. 22 - 28, 1993.

16.     “Low-Frequency Fluctuations in Semiconducting and Superconducting YBa2Cu3Ox Thin Films,” A. Jahanzeb, P.-C. Shan, Z. Çelik-Butler, and D. P. Butler, Presented at the 13th International Conference on Noise in Physical Systems and 1/f Fluctuations, May 29 - June 2, 1995, Palanga, Lithuania.(Proceedings of the 13th International Conference on Noise in Physical Systems and 1/f Fluctuations, edited by V.Bareikis and R. Katilius, World Scientific Press, 1995, pp. 115-118.)

17.     “Semiconducting YBaCuO Films for Room Temperature Bolometric Applications,” A. Jahanzeb, Z. Çelik-Butler, D. P. Butler, and P.-C. Shan, Presented at the 1996 Spring Meeting  of the Materials Research Society, April 8 - 12, 1996, San Francisco , CA .

18.     “IR Detection at Room Temperature Using Semiconducting YBaCuO,” D. P. Butler, A. Jahanzeb, P.-C. Shan, C. Travers and Z. Çelik-Butler, Presented at the 1996 SPIE International Symposium on Optical Science, Engineering, and Instrumentation, Aug. 4 - 9, 1996. 1996 SPIE Proceedings on Infrared Detectors for Remote Sensing: Physics, Materials, and Devices, Vol. 2816, pp. 46-57 (1996).

19.     “Room-temperature Operation of a YBaCuO Microbolometer,” Z. Çelik-Butler, D.P. Butler, C.M. Travers, and A. Jahanzeb, Presented at the SPIE's Optoelectronics '97 Symposium: Photodetectors: Materials and Devices II Conference, Feb. 10 - 14, 1997, San Jose, CA. 1997 Proceedings of the SPIE Photodectors Materials and Devices II, Vol. 2999, pp. 348-356 (1997).

20.      “Noise in Semiconducting YBaCuO Microbolometers and its Applications,” Z. Çelik-Butler, A. Jahanzeb, D. P. Butler, and C. Travers, Presented at the 14th International Conference on Noise in Physical Systems and 1/f Fluctuations, ICNF’97, July 14-18, 1997, Leuven, Belgium.

21.     “Uncooled Infrared Microbolometers and Pyroelectric detectors using Semiconducting YBaCuO,” J.E. Gray, Z. Çelik-Butler, D.P. Butler, and M. Almasri, Presented at the SPIE 43rd Annual Meeting, The International Symposium on Optical Science, Engineering, and Instrumentation: Infrared Technology and its Applications XXIV, July 19-24, 1998, San Diego, CA. Proceedings of the SPIE Infrared Technology and its Applications XXIV, Vol. 3436, pp. 555-566 (1998).

22.     “Cryogenic Performance of Semiconducting Y-Ba-Cu-O for Infrared Detection,” M. Almasri, D.P. Butler, Z. Çelik- Butler , R. Adam, R. Sobolewski, Presented at the International Superconductive Electronics Conference (ISEC'99) Berkeley , CA , June 21-26, 1999. Proceedings of the 7th International Superconductive Electronics Conference, Berkeley , CA , pp. 530-532.

23.     “Uncooled Y-Ba-Cu-O detectors based on the pyroelectric and bolometric effects,” Roman Adam, Roman Sobolewski, Zeynep Çelik-Butler and Donald P. Butler, Presented at the 1999 International Workshop on Superconductivity (4th Joint ISTEC/MRS Hawaii Workshop), Kauai, Hawaii, 27-30 June 1999.

24.     “Free Standing Amorphous Semiconducting YBaCuO Detectors for Uncooled IR Detection and the Effects of Doping,” M. Almasri, D.P. Butler, and Z. Çelik-Butler, SPIE 44th Annual Meeting, The International Symposium on Optical Science, Engineering, and Instrumentation, Growth and Characterization of Materials for IR Detectors III, 18-23 July 1999, Denver, CO. Proceedings of the SPIE, Vol. 3794, pp. 66-75 (1999).

25.      “YBaCuO Microbolometers for Advanced Broad-Band IR and FIR Detection,” D.P. Butler and Z. Çelik-Butler, Presented at Nanospace 2000 - Advancing the Human Frontier, Houston, TX, January 23-28, 2000.

26.     “Semiconducting YBaCuO bolometers for uncooled IR detection,” D.P. Butler, M. Almasri, and Z. Çelik-Butler, Presented at the 14th SPIE Annual International Symposium on Aerospace/Defense Sensing, Simulation, and Controls (AEROSENSE): Infrared Detectors and Focal Plane Arrays VI, Orlando, FL, 24-28 April, 2000. Proceedings of the SPIE Vol. 4028, pp. 17-26 (2000).

27.     "Cooled and Uncooled Infrared Detectors Based on Yttrium Barium Copper Oxide," (invited) R. Sobolewski, D.P. Butler, and Z. Çelik-Butler, Presented at the 2nd International Conference on Advanced Optical Materials and Devices (ADOM-2), Vilnius, Lithuania, Aug. 16-19, 2000. Proceedings of the SPIE, vol. 4318, pp. 204, 2001.

28.      “Uncooled Microbolometers Based on Semiconducting YBaCuO for Broad-Band IR Radiation Detection,” D.P. Butler, Z. Çelik-Butler, M. Almasri, A. Yaradanakul, A. Yildiz, Presented at NanoTech 2000, Houston, TX, Sept. 24-28 2000.

29.     "YBaCuO microbolometers for broad-band IR sensing," Z. Çelik-Butler, D. P. Butler, M. Almasri, A. Yardanakul, A. Yildiz, Presented at the SPIE Aerosense, Infrared Technology and Applications XXVII, Orlando, FL, April 2001. SPIE  4369, pp. 264-273 (2001), B.F. Andresen, G.F. Fulop, and M. Strojnik Editors.

30.     "Fabrication of Micromachined Devices an Flexible Substrates," A. Yaradanakul, Ali Yildiz, D.P. Butler, and Z. Celik-Butler, Presented at the 2001 Emerging Technologies Symposium on Broadband Communications for the Internet Era, Richardson, TX, 10, 11 Sept. 2001, conference proceedings.

31.     “Room-Temperature YBaCuO Infrared Detectors on a Flexible Substrate,” Z. Celik- Butler , D.P. Butler, A. Yildiz, presented at the SPIE Aerosense, Infrared Technology and Applications XXVIII, Orlando , FL , April 2002. SPIE 4721, pp. 260-267 (2002). E.L. Derniak and R.E. Sampson Editors.

32.     “Uncooled micromachined bolometer arrays on flexible substrates,” Z. Celik-Butler, D. P. Butler, S. A. Dayeh, and P. Wisian-Neilson, presented at the SPIE Aerosense, Infrared Technology and Applications XXVIX, Orlando, FL, April 2003. SPIE 5074, pp. 537-547 (2003), B.F. Andersen and G.F. Fulop Editors.

33.     “Micromachined Infrared Sensor Arrays on Flexible Polyimide Substrates,” Aamer Mahmood, Shadi Dayeh, Donald P. Butler, and Zeynep Çelik-Butler, 2003 ETTC, Richardson, TX, 26,27 Sept. 2003.

34.     Aamer Mahmood, Shadi A. Dayeh, Donald P. Butler, and Zeynep Celik-Butler, “Micromachined Infrared Sensor Arrays on Flexible Polyimide Substrates,” presented at 2003 IEEE Sensors Conference, Toronto , Canada , 22-24 Oct. 2003.

35.     Aasutosh Dave, Aamer Mahmood, Zeynep Celik-Butler, and Donald P. Butler, “Wafer Level self-Packaged Infrared Microsensors,” presented at the SPIE 2004 Defense and Security Symposium: Infrared Technology and Applications XXX, Orlando , FL , April 2004.

36.      “RF Sputtered  SixGe1-x  and SixGe1-xOy Thin Films For Microsensor Applications,” Mukti M. Rana and Donald P. Butler, 2004 IEEE Emerging Technologies Conference, Richardson, Texas, Oct. 8th, 9th, 2004.

37.     “Self-Packaged Infrared Microsensors,” A. Dave, A. Mahmood, Z. Çelik-Butler and D. P. Butler, SPIE Defense and Security Symposium; Infrared Technology and Applications XXX, Orlando, FL, 28 Mar. – 1 April, 2005.

38.     “Amorphous GexSi1-x and GexSi1-xOy thin films for uncooled infrared microbolometers,” Mukti Rana and Donald P. Butler, SPIE Defense and Security Symposium; Infrared Technology and Applications XXX, Orlando , FL , 28 Mar. – 1 April, 2005.

39.     “Device-level vacuum packaged micromachined infrared detectors on flexible substrates,” Aamer Mahmood, Donald P. Butler, and Zeynep Celik-Butler, Presented at the IEEE Sensors Conference, Oct. 31 – Nov. 3 2005, Irvine , CA .

40.     “Integration of Y-Ba-Cu-O Microbolometers with CMOS Readout Circuit,” S. Kumar, M. Chitteboyina, D.P. Butler, Presented at 2006 IEEE Emerging Technologies Conference, Richardson, TX 15-16 Sept. 2006.

41.     Mukti M. Rana and Donald P Butler, “Amorphous GexSi1-xOy:H Microbolometers with High Responsivity,” to be presented at the 2007 IEEE Sensors Conference, Atlanta, GA 28-31 Oct. 2007.

42.     Murali Chitteboyina, Donald P. Butler and Zeynep Celik-Butler , “ Va cuum packaged rf MEMS resonator,” Presented at 2007 TECHCON, 10-14 Sept. 2007, Austin , TX .

 

Non-Refereed Conference Papers:

 

43.     “Picosecond Phenomena in Nonequilibrium Superconductors,” by D.P. Butler, R.S. Sobolewski, C.V. Stancampiano, and G.A. Mourou, Presented at the IEEE Electron Device Activities in Western New York Conference,  Rochester , N.Y. , 6 October, 1981.

44.     “Transient Normal-Superconducting Relaxation in the Presence of Current Bias,”  by D.P. Butler, T.Y. Hsiang, and G.A. Mourou,   March Meeting of the American Physical Society, Detroit, Mich., 26-30 March, 1984, Bulletin of the American Physical Society 29, 522 (1984).

45.     “TDGL Calculation for the Relaxation of the Resistive State Excited by Supercritical Current Pulses in Superconducting Filaments,” by D.P. Butler and T.Y. Hsiang,  March Meeting of the American Physical Society, Las Vegas, Nev. 31 March-4 April, 1986,  Bulletin of the American Physical Society 31, 239 (1986).

46.     “The Intermediate State in Optically Perturbed Superconducting Thin Films,” by R. Sobolewski, D.P. Butler, and T.Y. Hsiang,   March Meeting of the American Physical Society, Las Vegas Nev., 31 March-4 April, 1986, Bulletin of the American Physical Society 31, 1105 (1986).

47.     “Millimeter Wave Properties of YBa2Cu3O6+x,” by C. L. Huang, D. P. Butler, J. K. Butler and M. W. Scott,  1989 March Meeting of the American Physical Society, St. Louis, Mo., 20-25 March, 1989, Bulletin of the American Physical Society 34, 647 (1989).

48.     “TDGL Surface Impedance of Superconductors,” by S. K. Dubey and D. P. Butler, Presented at the 1990 March Meeting of the American Physical Society, Anaheim , CA , 12-16 March, 1990. Bulletin of the American Physical Society 35, 529, (1990).

49.     “YBaCuO Thin Films by rf Sputtering from a Sintered Powder Target,” by D. P. Butler and S. K. Dubey, Presented at the 1990 March Meeting of the American Physical Society, Anaheim , CA , 12-16 March, 1990.  Bulletin of the American Physical Society 35, 384, (1990).

50.     “Microwave mixing with YBa2Cu3O7 Microbridges,” by D. P. Butler, J. Wang, A. Bhandari, and Z. Çelik-Butler, Presented at the 1992 Joint Spring Meeting of the Texas Sections of AAPT, APS, and Zone 13 SPS, San Marcos, TX, March 6-7, 1992.  Bulletin of the American Physical Society 37, 1901, 1992.

51.     “Frequency Conversion with High-Tc Superconducting Microbridges,” by J. Wang, D. P. Butler, and Z. Çelik-Butler, Presented at the 1993 March Meeting of the American Physical Society, Seattle , WA , Mar. 22-26, 1993.  Bulletin of the American Physical Society 38, 688, (1993).

52.     “Dielectric Constant of Semiconducting YBa2Cu3O6+x at Microwave Frequencies,” by W. N. Maung, D. P. Butler, W. Xiong, W. Kula and R. Sobolewski, Presented at the 1993 March Meeting of the American Physical Society, Seattle, WA, Mar. 22-26, 1993.  Bulletin of the American Physical Society 38, 689, (1993).

53.      “Self-Supporting Semiconducting YBaCuO Uncooled IR Detectors,” M. Almasri, D.P. Butler and Z. Çelik-Butler, Presented at the 2nd TEXMEMs Workshop, Dallas, TX 16 May, 2000.

54.      “Semiconducting YBaCuO Microbolometers with Titanium Absorber,” A. Yaradanakul, Z. Çelik-Butler, and D.P. Butler, Presented at the 2nd TEXMEMs Workshop, Dallas, TX 16 May, 2000.

55.      “Multi-color uncooled thermal focal plane array with thermal MEM-chopping,” V. N. Leonov, Z. Çelik-Butler, and D.P. Butler, Presented at the 2nd TEXMEMs Workshop, Dallas, TX 16 May, 2000.

56.     "Micromachined Two-Color Microbolometers with Thermal Chopping," (invited) V.N. Leonov and Donald P. Butler, Presented at the IEEE MetroCon 2000 Conference, Arlington , TX , 27 Sept. 2000.

57.     "Micromachined Broad-band Y-Ba-Cu-O Bolometers," (invited) Z. Celik- Butler , D.P. Butler, M. Almasri, A. Yarandanakul, and A. Yildez, Presented at the IEEE MetroCon 2000 Conference, Arlington , TX , 27 Sept. 2000.

58.      “Uncooled Semiconducting YBaCuO Microbolometers for Visible through FIR Detection” M. Almasri, D.P. Butler, Z. Çelik-Butler, A. Yildiz, and A. Yaradanakul, Presented at TEXMEMs III Workshop, Dallas, TX, 7 June 2001.

59.     "Room Temperature Infrared Microbolometers on a Flexible Substrate," A. Yaradanakul, Z. Celik-Butler, and D. P. Butler, Presented at TEXMEMs III Workshop, Dallas , TX . 7 June 2001.

60.      “Semiconducting YBaCuO Infrared Microbolometers on a Flexible Substrate,” A. Yildiz, Z. Çelik-Butler, and D. P. Butler, TEXMEMS IV, Lubbock, Texas, July 11th, 2002.

61.     “Uncooled Semiconducting YBaCuO Microbolometers on Rough Substrates,” S. Dayeh, D. P. Butler, Z. Çelik-Butler, and Ali Yildiz, TEXMEMS IV, Lubbock, Texas, July 11th, 2002.

62.     “Micromachined Infrared Microsensors on a Flexible Substrate,” Shadi A. Dayeh, Zeynep Çelik-Butler and Donald P. Butler, TEXMEMS V, Fort Worth, Texas, May 6th, 2003.

63.     “Surface micromachined microbolometers on polyimide substrates,” Aamer Mahmood, Donald P. Butler, and Zeynep Celik-Butler, TEXM