Recent Presentations

Presented by Dr. Colton or students (in Powerpoint format)

• "Quantum Computing and Electron Spins in Semiconductors," talk given by Dr. Colton at Utah Valley University, 25 Mar 2009.
• "Optically-detected magnetic resonance studies of n-GaAs," talk given by Dr. Colton at the American Physical Society's "March Meeting" in Pittsburgh, PA, 20 Mar 2009.
• "Nuclear effects in the optically-detected magnetic resonance of electron spins in n-GaAs," talk given by Benjamin Heaton at the American Physical Society's "March Meeting" in Pittsburgh, PA, 20 Mar 2009.
• "Nuclear Effects on Electron Spin Resonance in Gallium Arsenide," poster presentation given by Mitch Jones at the American Physical Society's "March Meeting" in Pittsburgh, PA, 18 Mar 2009.

Published papers

Coauthored by Dr. Colton

• "Resonant microwave cavity for 8.5-12 GHz optically detected electron spin resonance with simultaneous nuclear magnetic resonance," J. S. Colton and L. R. Wienkes, Rev. Sci. Instrum. 80, 035106 (2009).
• "Dependence of optically oriented and detected electron spin resonance on donor concentration in n-GaAs," J.S. Colton, T.A. Kennedy, A.S. Bracker, D. Gammon, and J. Miller, Solid State Comm 132, 613 (2004).
• "Microsecond spin-flip times in n-GaAs measured by time resolved polarization of photoluminescence," J.S. Colton, T.A. Kennedy, A.S. Bracker, and D. Gammon, Phys Rev B 69, 121307(R) (2004). [This paper was selected for publication in Virtual J of Nanoscale Sci & Tech 9, issue 13 (2004).]
• "Long Coherence Times at 300K for Nitrogen-Vacancy Center Spins in Diamond Grown by Chemical Vapor Deposition," T.A. Kennedy, J.S. Colton, J.E. Butler, R.C. Linares, and P.J. Doering, Appl. Phys. Lett. 83, 4190 (2003).
• "Optically oriented and detected electron spin resonance in a lightly doped n-GaAs layer," J.S. Colton, T.A. Kennedy, A.S. Bracker, D. Gammon, and J. Miller, Phys. Rev. B 67, 165315 (2003).
• "Spin lifetime measurements in MBE-grown GaAs epilayers," J.S. Colton, T.A. Kennedy, A.S. Bracker, and D. Gammon, phys. stat. sol. (b) 233, 445 (2002).
• "Single-qubit operations with the nitrogen-vacancy center in diamond," T.A. Kennedy, F.T. Charnock, J.S. Colton, J.E. Butler, R.C. Linares, and P.J. Doering, phys. stat. sol. (b) 233, 416 (2002).
• "What determines the emission peak energy of the blue luminescence in highly Mg-doped p-GaAs?" J.S. Colton and P.Y. Yu, Appl. Phys. Lett. 78, 2500 (2001).
• "Selectively excited blue luminescence in heavily Mg-doped p-type GaN," J.S. Colton and P.Y. Yu, Proc. of the 11th International Semiconducting and Insulating Materials Conference (SIMC-XI), published by IEEE, pp. 11-14 (2000).
• "Selective excitation and thermal quenching of the yellow luminescence of GaN," J.S. Colton, K.L. Teo, P.Y. Yu, P. Perlin, E.R. Weber, I. Grzegory and K. Uchida , Appl. Phys. Lett. 75, 3273 (1999).
• "Selective excitation of the yellow luminescence of GaN," J.S. Colton, P.Y. Yu, K.L. Teo, E.R. Weber, P. Perlin, I. Grzegory and K. Uchida, Physica B 273-274, 75 (1999).
• "An analysis of temperature dependent photoluminescence lineshapes in InGaN," K.L. Teo, J.S. Colton, P.Y. Yu, E.R. Weber, M.F. Li, W. Liu, K. Uchida, H.Tokunaga, N. Akutsu and K. Matsumoto, Appl. Phys. Lett. 73, 1697 (1998).