Magnetic field effects on THz quantum cascade laser: A comparative analysis of three and four quantum well based active region design

被引：5

作者：

Danicic, A. ^{[1
]}

Radovanovic, J. ^{[2
]}

Milanovic, V. ^{[2
]}

Indjin, D. ^{[3
]}

Ikonic, Z. ^{[3
]}

机构：

[1] Univ Belgrade, Vinca Inst Nucl Sci, P Grp, POB 522, Belgrade 11001, Serbia

[2] Univ Belgrade, Sch Elect Engn, Bulevar Kralja Aleksandra 73, Belgrade 11120, Serbia

[3] Univ Leeds, Sch Elect & Elect Engn, Inst Microwaves & Photon, Woodhouse Lane, Leeds LS2 9JT, W Yorkshire, England

来源：

PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES | 2016年 / 81卷

关键词：

Quantum Cascade Laser; Quantum well; Magnetic field; OPTICAL GAIN;

D O I：

10.1016/j.physe.2016.03.019

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

We consider the influence of additional carrier confinement, achieved by application of strong perpendicular magnetic field, on inter Landau levels electron relaxation rates and the optical gain, of two different GaAs quantum cascade laser structures operating in the terahertz spectral range. Breaking of the in-plane energy dispersion and the formation of discrete energy levels is an efficient mechanism for eventual quenching of optical phonon emission and obtaining very long electronic lifetime in the relevant laser state. We employ our detailed model for calculating the electron relaxation rates (due to interface roughness and electron-longitudinal optical phonon scattering), and solve a full set of rate equations to evaluate the carrier distribution over Landau levels. The numerical simulations are performed for three- and four-well (per period) based structures that operate at 3.9 THz and 1.9 THz, respectively, both implemented in GaAs/Al0.15Ga0.85As. Numerical results are presented for magnetic field values from 1.5 T up to 20 T, while the band nonparabolicity is accounted for. (C) 2016 Elsevier B.V. All rights reserved.

引用

页码：275 / 280

页数：6

共 34 条

[1] GaAs/Al0.15Ga0.85As terahertz quantum cascade lasers with double-phonon resonant depopulation operating up to 172 K [J].

Adams, Robert W. ;

Vijayraghavan, Karun ;

Wang, Qi Jie ;

Fan, Jonathan ;

Capasso, Federico ;

Khanna, Suraj P. ;

Davies, A. Giles ;

Linfield, Edmund H. ;

Belkin, Mikhail A. .

APPLIED PHYSICS LETTERS, 2010, 97 (13)

[2] GaAs quantum box cascade lasers [J].

Becker, C ;

Sirtori, C ;

Drachenko, O ;

Rylkov, V ;

Smirnov, D ;

Leotin, J .

APPLIED PHYSICS LETTERS, 2002, 81 (16) :2941-2943

[3] A terahertz pulse emitter monolithically integrated with a quantum cascade laser [J].

Burghoff, David ;

Kao, Tsung-Yu ;

Ban, Dayan ;

Lee, Alan Wei Min ;

Hu, Qing ;

Reno, John .

APPLIED PHYSICS LETTERS, 2011, 98 (06)

[4] Quantum cascade lasers in chemical physics [J].

Curl, Robert F. ;

Capasso, Federico ;

Gmachl, Claire ;

Kosterev, Anatoliy A. ;

McManus, Barry ;

Lewicki, Rafal ;

Pusharsky, Michael ;

Wysocki, Gerard ;

Tittel, Frank K. .

CHEMICAL PHYSICS LETTERS, 2010, 487 (1-3) :1-18

[5] Optimization and magnetic-field tunability of quantum cascade laser for applications in trace gas detection and monitoring [J].

Danicic, A. ;

Radovanovic, J. ;

Milanovic, V. ;

Indjin, D. ;

Ikonic, Z. .

JOURNAL OF PHYSICS D-APPLIED PHYSICS, 2010, 43 (04)

[6]

Demic A., 2015, ELECTRONICS, V19, P39

[7] Compact magnetospectrometer for pulsed magnets based on infrared quantum cascade lasers [J].

Drachenko, O. ;

Winnerl, S. ;

Schneider, H. ;

Helm, M. ;

Wosnitza, J. ;

Leotin, J. .

REVIEW OF SCIENTIFIC INSTRUMENTS, 2011, 82 (03)

[8] NONPARABOLICITY EFFECTS IN A QUANTUM WELL - SUBLEVEL SHIFT, PARALLEL MASS, AND LANDAU-LEVELS [J].

EKENBERG, U .

PHYSICAL REVIEW B, 1989, 40 (11) :7714-7726

[9] QUANTUM CASCADE LASER [J].

FAIST, J ;

CAPASSO, F ;

SIVCO, DL ;

SIRTORI, C ;

HUTCHINSON, AL ;

CHO, AY .

SCIENCE, 1994, 264 (5158) :553-556

[10] Terahertz quantum cascade lasers operating up to ∼ 200 K with optimized oscillator strength and improved injection tunneling [J].

Fathololoumi, S. ;

Dupont, E. ;

Chan, C. W. I. ;

Wasilewski, Z. R. ;

Laframboise, S. R. ;

Ban, D. ;

Matyas, A. ;

Jirauschek, C. ;

Hu, Q. ;

Liu, H. C. .

OPTICS EXPRESS, 2012, 20 (04) :3866-3876

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