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        Proposed Use of Step Quantum Wells for Terahertz Quantum Cascade Lasers

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        Author
        Freeman, Will
        Karunasiri, Gamani
        Date
        2007
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        Abstract
        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.
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        http://hdl.handle.net/10945/60759
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          Monte Carlo simulation of terahertz step well quantum cascade laser structures 

          Freeman, Will; Karunasiri, Gamani (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 ...
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          Ultrasonic attenuation in superconducting zinc 

          Goncz, Joseph P. (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 ...
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          Temperature dependence of diffusion length, lifetime and minority electron mobility in GaInP 

          Schultes, F.J.; Haegel, N.M.; Christian, T.; Alberi, K.; Fluegel, B.; Jones-Albertus, R.; Pickett, E.; Liu, T.; Misra, P.; Sukiasyan,A.; Yuen ,H. (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 ...
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