Intervalley scattering and the role of indirect band gap AlAs barriers: Application to GaAs/AlGaAs quantum cascade lasers

被引：2
|
作者：
Mc Tavish, J. [1 ]
Ikonic, Z. [1 ]
Indjin, D. [1 ]
Harrison, P. [1 ]
机构：
[1] Univ Leeds, Sch Elect & Elect Engn, Leeds LS2 9JT, W Yorkshire, England
来源：
ACTA PHYSICA POLONICA A | 2008年 / 113卷 / 03期
关键词：
D O I：
10.12693/APhysPolA.113.891
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
We report on the results of our simulations of Gamma-X scattering in GaAs/AlGaAs heterostructures, discussing the importance of the mole fraction, doping density, and lattice and electron temperature in determining the scattering rates. We consider three systems, a single quantum well (for the investigation of Gamma-X scattering), a double quantum well (to compare the Gamma-X-G and Gamma-Gamma scattering rates), and an example of a GaAs/AlGaAs mid-infrared quantum cascade laser. Our simulations suggest that Gamma-X scattering can be significant at room temperature but falls off rapidly at lower temperatures. One important factor determining the scattering rate is found to be the energy difference between the Gamma- and X-states.
引用
收藏
页码：891 / 902
页数：12
相关论文
共 50 条
  • [21] Improved temperature performance of GaAs/AlGaAs quantum cascade lasers
    Schrenk, W
    Anders, S
    Pflügl, C
    Gornik, E
    Strasser, G
    Becker, C
    Sirtori, C
    COMPOUND SEMICONDUCTORS 2002, 2003, 174 : 385 - 388
  • [22] Low resistance ohmic contacts to n-GaAs for application in GaAs/AlGaAs quantum cascade lasers
    Karbownik, Piotr
    Baranska, Anna
    Szerling, Anna
    Macherzynski, Wojciech
    Papis, Ewa
    Kosiel, Kamil
    Bugajski, Maciej
    Tlaczala, Marek
    Jakiela, Rafal
    OPTICA APPLICATA, 2009, 39 (04) : 655 - 661
  • [23] GaAs/AlGaAs superlattice quantum cascade lasers at λ≈13 μm
    Strasser, G
    Gianordoli, S
    Hvozdara, L
    Schrenk, W
    Unterrainer, K
    Gornik, E
    APPLIED PHYSICS LETTERS, 1999, 75 (10) : 1345 - 1347
  • [24] AlGaAs/GaAs quantum cascade lasers for gas detection systems
    Kosiel, K.
    Szerling, A.
    Karbownik, P.
    Kubacka-Traczyk, J.
    Sankowska, I.
    Pierscinska, D.
    Pierscinski, K.
    Bugajski, M.
    Miczuga, M.
    Kopczynski, K.
    Kwasny, M.
    2011 36TH INTERNATIONAL CONFERENCE ON INFRARED, MILLIMETER, AND TERAHERTZ WAVES (IRMMW-THZ), 2011,
  • [25] The Study of Thermal Properties of GaAs/AlGaAs Quantum Cascade Lasers
    Pruszynska-Karbownik, E.
    Karbownik, P.
    Szerling, A.
    Kosiel, K.
    Bugajski, M.
    ACTA PHYSICA POLONICA A, 2009, 116 : S60 - S61
  • [26] Strained InGaAs/AlGaAs/GaAs-quantum cascade lasers
    Gianordoli, S
    Schrenk, W
    Hvozdara, L
    Finger, N
    Strasser, G
    Gornik, E
    APPLIED PHYSICS LETTERS, 2000, 76 (23) : 3361 - 3363
  • [27] Indirect band-gap tunnelling through a (100) GaAs/AlAs/GaAs heterostructure
    Marsh, A. C.
    SEMICONDUCTOR SCIENCE AND TECHNOLOGY, 1986, 1 (05) : 320 - 326
  • [28] GaAs/AlGaAs unipolar mid-infrared quantum cascade lasers
    Hvozdara, L
    Gianordoli, S
    Strasser, G
    Schrenk, W
    Unterrainer, K
    Gornik, E
    COMPOUND SEMICONDUCTORS 1999, 2000, (166): : 363 - 366
  • [29] Mid-Infrared GaAs/AlGaAs Quantum Cascade Lasers Technology
    Szerling, A.
    Karbownik, P.
    Kosiel, K.
    Kubacka-Traczyk, J.
    Pruszynska-Karbownik, E.
    Pluska, M.
    Bugajski, M.
    ACTA PHYSICA POLONICA A, 2009, 116 : S45 - S48
  • [30] GaAs-AlGaAs quantum cascade lasers: Physics, technology, and prospects
    Sirtori, C
    Page, H
    Becker, C
    Ortiz, V
    IEEE JOURNAL OF QUANTUM ELECTRONICS, 2002, 38 (06) : 547 - 558
12345