Publications

Found 44 results
Author Title Type [ Year(Desc)]
Filters: Author is Speck, James S and First Letter Of Title is D  [Clear All Filters]
1997
DenBaars, S. P., and J. S. Speck, Defect reduction in the growth of group III nitrides, 1997.
2001
Liu, Y., B. Acikeia, A. S. Nagra, T. R. Taylor, P. J. Hansen, J. S. Speck, and R. A. York, "Distributed phase shifters using (Ba, Sr) TiO3 thin films on sapphire and glass substrates", Integrated Ferroelectrics, vol. 39, no. 1-4: Taylor & Francis, pp. 313–320, 2001.
2002
Simpkins, B. S., Y. T Edward, P. Waltereit, and J. S. Speck, "Distinguishing negatively-charged and highly conductive dislocations in gallium nitride using scanning Kelvin probe and conductive atomic force microscopy", MRS Online Proceedings Library Archive, vol. 743: Cambridge University Press, 2002.
2005
Chakraborty, A., B. A. Haskell, S. Keller, J. S. Speck, S. P. DenBaars, S. Nakamura, and U. K. Mishra, "Demonstration of nonpolar m-plane InGaN/GaN light-emitting diodes on free-standing m-plane GaN substrates", Japanese journal of applied physics, vol. 44, no. 1L: IOP Publishing, pp. L173, 2005.
2006
Kamber, D. S., Y. Wu, B. A. Haskell, S. Newman, S. P. DenBaars, J. S. Speck, and S. Nakamura, "Direct heteroepitaxial growth of thick AlN layers on sapphire substrates by hydride vapor phase epitaxy", Journal of crystal growth, vol. 297, no. 2: Elsevier, pp. 321–325, 2006.
2007
Getty, A. R. K., A. David, Y. Wu, C. Weisbuch, and J. S. Speck, "Demonstration of distributed Bragg Reflectors for deep ultraviolet applications", Japanese Journal of Applied Physics, vol. 46, no. 8L: IOP Publishing, pp. L767, 2007.
Schmidt, M. C., K-C. Kim, R. M. Farrell, D. F. Feezell, D. A. Cohen, M. Saito, K. Fujito, J. S. Speck, S. P. DenBaars, and S. Nakamura, "Demonstration of nonpolar m-plane InGaN/GaN laser diodes", Japanese journal of applied physics, vol. 46, no. 3L: IOP Publishing, pp. L190, 2007.
2008
Imer, B. M., J. S. Speck, and S. P. DenBaars, Defect reduction of non-polar and semi-polar III-Nitrides with sidewall lateral epitaxial overgrowth (SLEO), 2008.
Asamizu, H., M. Saito, K. Fujito, J. S. Speck, S. P. DenBaars, and S. Nakamura, "Demonstration of 426 nm InGaN/GaN laser diodes fabricated on free-standing semipolar (1122) gallium nitride substrates", Applied physics express, vol. 1, no. 9: IOP Publishing, pp. 091102, 2008.
Speck, J. S., Development of Advanced Ill-Nitride Materials: DTIC Document, 2008.
Speck, J. S., Development of III-Nitride Materials for IR Applications: DTIC Document, 2008.
Koblmüller, G., R. Chu, F. Wu, U. K. Mishra, and J. S. Speck, "Dislocation reduction in AlGaN/GaN heterostructures on 4H-SiC by molecular beam epitaxy in the thermal decomposition regime", Applied physics express, vol. 1, no. 6: IOP Publishing, pp. 061103, 2008.
2011
Imer, B. M., J. S. Speck, and S. P. DenBaars, Defect reduction of non-polar and semi-polar III-nitrides with sidewall lateral epitaxial overgrowth (SLEO), 2011.
Huang, C-Y., M. T. Hardy, K. Fujito, D. F. Feezell, J. S. Speck, S. P. DenBaars, and S. Nakamura, "Demonstration of 505 nm laser diodes using wavelength-stable semipolar (20 21) InGaN/GaN quantum wells", Applied Physics Letters, vol. 99, no. 24: AIP, pp. 241115, 2011.
Bierwagen, O., J. S. Speck, T. Nagata, T. Chikyow, Y. Yamashita, H. Yoshikawa, and K. Kobayashi, "Depletion of the In 2 O 3 (001) and (111) surface electron accumulation by an oxygen plasma surface treatment", Applied Physics Letters, vol. 98, no. 17: AIP, pp. 172101, 2011.
Young, E. C., A. E. Romanov, and J. S. Speck, "Determination of Composition and Lattice Relaxation in Semipolar Ternary (In, Al, Ga) N Strained Layers from Symmetric X-ray Diffraction Measurements", Applied physics express, vol. 4, no. 6: IOP Publishing, pp. 061001, 2011.
Kaun, S. W., M. Hoi Wong, S. Dasgupta, S. Choi, R. Chung, U. K. Mishra, and J. S. Speck, "Device physics-024101 Effects of Threading Dislocation Density on the Gate Leakage of AlGaN/GaN Heterostructures for High Electron Mobility Transistors", Applied Physics Express, vol. 4, no. 2, 2011.
Rangel, E., E. Matioli, Y-S. Choi, C. Weisbuch, J. S. Speck, and E. L. Hu, "Directionality control through selective excitation of low-order guided modes in thin-film InGaN photonic crystal light-emitting diodes", Applied physics letters, vol. 98, no. 8: AIP, pp. 081104, 2011.
2012
Hardy, M. T., P. Shan Hsu, I. L. Koslow, D. Feezell, S. Nakamura, J. S. Speck, and S. DenBaars, "Demonstration of a Relaxed Waveguide Semipolar (202Ø1) InGaN/GaN Laser Diode", CLEO: Science and Innovations: Optical Society of America, pp. CTu2N–2, 2012.
Hardy, M. T., P. S. Hsu, I. Koslow, D. F. Feezell, S. Nakamura, J. S. Speck, and S. P. DenBaars, "Demonstration of a relaxed waveguide semipolar InGaN/GaN laser diode", Lasers and Electro-Optics (CLEO), 2012 Conference on: IEEE, pp. 1–2, 2012.
Yeluri, R., C. A. Hurni, S. Chowdhury, J. S. Speck, and U. K. Mishra, "Demonstration of Low ON-Resistance CAVETS with Ammonia MBE Grown Active p-GaN Layer as the Current Blocking Layer for High Power Applications", Meeting Abstracts, no. 30: The Electrochemical Society, pp. 2531–2531, 2012.
Holder, C., J. S. Speck, S. P. DenBaars, S. Nakamura, and D. Feezell, "Demonstration of nonpolar GaN-based vertical-cavity surface-emitting lasers", Applied Physics Express, vol. 5, no. 9: IOP Publishing, pp. 092104, 2012.
Toledo, N. G., D. J. Friedman, R. M. Farrell, E. E. Perl, C-T. Lin, J. E. Bowers, J. S. Speck, and U. K. Mishra, "Design of integrated III-nitride/non-III-nitride tandem photovoltaic devices", Journal of Applied Physics, vol. 111, no. 5: AIP, pp. 054503, 2012.
Craven, M. D., S. P. DenBaars, J. S. Speck, and S. Nakamura, Dislocation reduction in non-polar iii-nitride thin films, 2012.
2013
Holder, C., D. Feezell, J. S. Speck, S. P. DenBaars, and S. Nakamura, "Demonstration of nonpolar GaN-based vertical-cavity surface-emitting lasers", Vertical-Cavity Surface-Emitting Lasers XVII, vol. 8639: International Society for Optics and Photonics, pp. 863906, 2013.

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