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.
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 ... -
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 ... -
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 ...
