Naval Postgraduate School
Proposed Use of Step Quantum Wells for Terahertz Quantum Cascade Lasers
Karunasiri_W_Freeman_Proposed_Use_of_Step_Lete_news_poster.pdf (167.1Kb)Date
2007Metadata
Show full item recordAbstract
Terahertz (THz) quantum cascade lasers (QCLs) have been designed by a number of
approaches and variations using square quantum wells. In this paper, a step quantum well
structure is analyzed for use in LO-phonon assisted QCLs where the radiative transition and
LO-phonon transition are within the same well. The electron-phonon and electron-electron
scattering rates are calculated for this step well and a QCL structure for operating in the THz
frequencies is proposed.
Rights
This publication is a work of the U.S. Government as defined in Title 17, United States Code, Section 101. Copyright protection is not available for this work in the United States.Collections
Related items
Showing items related by title, author, creator and subject.
-
Monte Carlo simulation of terahertz step well quantum cascade laser structures
(SPIE, 2009);In this paper, electron transport properties of terahertz (THz) step well quantum cascade laser structures are analyzed. These types of structures can allow for the radiative and LO-phonon transitions to be placed within ... -
Ultrasonic attenuation in superconducting zinc
(Monterey, California: U.S. Naval Postgraduate School, 1965);Measurements of the ultrasonic attenuation of 10 and 30 Mcs/sec longitudinal waves by pulsed-echo techniques were made on a 99.999% pure single crystal of superconducting zinc in the [0001] direction as a function of ... -
Temperature dependence of diffusion length, lifetime and minority electron mobility in GaInP
(2013-12-09);The mobility of electrons in double heterostructures of p-type Ga{sub 0.50}In{sub 0.50}P has been determined by measuring minority carrier diffusion length and lifetime. The minority electron mobility increases monotonically ...
