Benjamin S. Williams - UCLA Engineering

Professor Benjamin S. Williams, UCLACVA. L. Betz, R. T. Boreiko, B. S. Williams, S. Kumar, Q. Hu and J. L. Reno, “Frequency and phase-lockcontrol of a 3 THz quantum cascade laser.” Optics Letters, vol. 30, no. 14, July 2005, pp. 1837-9.http://www.opticsinfobase.org/abstract.cfm?URI=ol-30-14-1837J. R. Gao, J. N. Hovenier, Z. Q. Yang, and J. J. A. Baselmans, A. Baryshev, M. Hajenius, T. M. Klapwijk,A. J. L. Adam, T. O. Klaassen, B. S. Williams, S. Kumar, Q. Hu, and J. L. Reno, “Terahertz heterodynereceiver based on a quantum cascade laser and a superconducting bolometer.” Applied Physics Letters,vol. 86, 13 June 2005, pp. 244104. http://link.aip.org/link/?APPLAB/86/244104/1(Reprinted in Virtual Journal of Nanoscale Science and Technology)B. S. Williams, S. Kumar, Q. Hu and J. L. Reno, “Operation of terahertz quantum-cascade lasers at 164 Kin pulsed mode and 117 K in continuous-wave mode.” Optics Express, vol. 13, no. 9, 3 May 2005, pp.3331. (Reprinted in Virtual Journal of Nanoscale Science and Technology)http://www.opticsinfobase.org/abstract.cfm?URI=oe-13-9-3331M. S. Vitiello, G. Scamarcio, V. Spagnolo, and B. S. Williams, S. Kumar, Q. Hu and J. L. Reno,“Measurement of subband electronic temperatures and population inversion in THz quantum-cascadelasers.” Applied Physics Letters, vol. 86, no. 11, 14 Mar. 2005, pp. 111115.http://link.aip.org/link/?APPLAB/86/111115/1S. Kohen, B. S. Williams, and Q. Hu, “Electromagnetic modeling of terahertz quantum cascade laserwaveguides and resonators.” Journal of Applied Physics, vol. 97, no. 5, 1 Mar. 2005, pp. 053106.http://link.aip.org/link/?JAPIAU/97/053106/1B. S. Williams, S. Kumar, Q. Hu and J. L. Reno, “Resonant-phonon terahertz quantum-cascade laseroperating at 2.1 THz ( 141 m).” Electronics Letters, vol. 40, no. 7, 1 Apr. 2004, pp. 431-2.S. Kumar, B. S. Williams, S. Kohen, Q. Hu, and J. L. Reno, “Continuous-wave operation of terahertzquantum-cascade lasers above liquid-nitrogen temperature.” Applied Physics Letters, vol. 84, no. 14, 5Apr. 2004, pp. 2494-6. http://link.aip.org/link/?APPLAB/84/2494/1Q. Hu, B. S. Williams, S. Kumar, H. Callebaut, and J. L. Reno, “Terahertz quantum-cascade lasers basedon resonant phonon scattering for depopulation.” Philosophical Transactions of the Royal Society ofLondon A, vol. 362, 2004, pp. 233-49.H. Callebaut, S. Kumar, B. S. Williams, Q. Hu and J. L. Reno, “Importance of electron-impurityscattering for electron transport in terahertz quantum cascade lasers.” Applied Physics Letters, vol. 84,no. 5, 2 Feb. 2004, pp. 645-7. http://link.aip.org/link/?APPLAB/84/645/1B. S. Williams, S. Kumar, H. Callebaut, Q. Hu and J. L. Reno, “Terahertz quantum-cascade laseroperating up to 137 K.” Applied Physics Letters, vol. 83, no. 25, 22 Dec. 2003, pp. 5142-4.B. S. Williams, S. Kumar, H. Callebaut, Q. Hu and J. L. Reno, “Terahertz quantum-cascade laser at 100 m using metal waveguide for mode confinement.” Applied Physics Letters, vol. 83, no. 11, 15 Sept.2003, pp. 2124-6. http://link.aip.org/link/?APPLAB/83/2124/1H. Callebaut, S. Kumar, B. S. Williams, Q. Hu and J. L. Reno, “Analysis of transport properties ofterahertz quantum cascade lasers.” Applied Physics Letters, vol. 83, no. 2, 14 Jul. 2003, pp. 207-9.http://link.aip.org/link/?APPLAB/83/207/1B. S. Williams, S. Kumar, H. Callebaut, Q. Hu and J. L. Reno, “3.4 THz quantum cascade laser operatingabove liquid nitrogen temperature.” Electronics Letters, vol. 39, no. 12, 12 Jun. 2003, pp. 915-6.B. S. Williams, H. Callebaut, S. Kumar, Q. Hu and J. L. Reno, “3.4-THz quantum cascade laser based onlongitudinal-optical-phonon scattering for depopulation.” Applied Physics Letters, vol. 82, no. 7, 17 Feb.2003, pp. 1015-7. http://link.aip.org/link/?APPLAB/82/1015/1- 4 -