Femtosecond dynamics of resonant tunneling and superlattice relaxation in quantum cascade lasers

被引：20

作者：

Choi, Hyunyong ^{[1
,2
]}

Norris, Theodore B. ^{[1
,2
]}

Gresch, Tobias ^{[3
]}

Giovannini, Marcella ^{[3
]}

Faist, Jerome ^{[3
]}

Diehl, Laurent ^{[4
]}

Capasso, Federico ^{[4
]}

机构：

[1] Univ Michigan, Ctr Ultrafast Opt Sci, Ann Arbor, MI 48109 USA

[2] Univ Michigan, Dept Comp Sci & Elect Engn, Ann Arbor, MI 48109 USA

[3] Univ Neuchatel, Inst Phys, CH-2000 Neuchatel, Switzerland

[4] Harvard Univ, Sch Engn & Appl Sci, Cambridge, MA 02138 USA

来源：

APPLIED PHYSICS LETTERS | 2008年 / 92卷 / 12期

关键词：

D O I：

10.1063/1.2898518

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Time-resolved mid-infrared pump-probe measurements are performed on a quantum cascade laser below and above the threshold. The gain recovery is determined by the electron transport through the cascade heterostructure. Subpicosecond resonant tunneling injection from the injector ground state into the upper lasing state is found to be incoherent due to the strong dephasing in the active subband. The gain recovery due to transport through superlattice is interpreted in terms of dielectric relaxation within the superlattice miniband. (C) 2008 American Institute of Physics.

引用

页数：3

共 19 条

[1] Doping in quantum cascade lasers. I. InAlAs-InGaAs/InP midinfrared devices [J].

Aellen, Thierry ;

Beck, Mattias ;

Hoyler, Nicolas ;

Giovannini, Marcella ;

Faist, Jerome ;

Gini, Emilio .

JOURNAL OF APPLIED PHYSICS, 2006, 100 (04)

[2] RESONANT TUNNELING THROUGH DOUBLE BARRIERS, PERPENDICULAR QUANTUM TRANSPORT PHENOMENA IN SUPERLATTICES, AND THEIR DEVICE APPLICATIONS [J].

CAPASSO, F ;

MOHAMMED, K ;

CHO, AY .

IEEE JOURNAL OF QUANTUM ELECTRONICS, 1986, 22 (09) :1853-1869

[3] BLOCH TRANSPORT OF ELECTRONS AND HOLES IN SUPERLATTICE MINIBANDS - DIRECT MEASUREMENT BY SUBPICOSECOND LUMINESCENCE SPECTROSCOPY [J].

DEVEAUD, B ;

SHAH, J ;

DAMEN, TC ;

LAMBERT, B ;

REGRENY, A .

PHYSICAL REVIEW LETTERS, 1987, 58 (24) :2582-2585

[4] Ultrafast coherent electron transport in semiconductor quantum cascade structures -: art. no. 047402 [J].

Eickemeyer, F ;

Reimann, K ;

Woerner, M ;

Elsaesser, T ;

Barbieri, S ;

Sirtori, C ;

Strasser, G ;

Müller, T ;

Bratschitsch, R ;

Unterrainer, K .

PHYSICAL REVIEW LETTERS, 2002, 89 (04)

[5] SUPERLATTICE AND NEGATIVE DIFFERENTIAL CONDUCTIVITY IN SEMICONDUCTORS [J].

ESAKI, L ;

TSU, R .

IBM JOURNAL OF RESEARCH AND DEVELOPMENT, 1970, 14 (01) :61-&

[6] Bound-to-continuum and two-phonon resonance quantum-cascade lasers for high duty cycle, high-temperature operation [J].

Faist, J ;

Hofstetter, D ;

Beck, M ;

Aellen, T ;

Rochat, M ;

Blaser, S .

IEEE JOURNAL OF QUANTUM ELECTRONICS, 2002, 38 (06) :533-546

[7] QUANTUM CASCADE LASER [J].

FAIST, J ;

CAPASSO, F ;

SIVCO, DL ;

SIRTORI, C ;

HUTCHINSON, AL ;

CHO, AY .

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

[8] Quantum-cascade lasers based on a bound-to-continuum transition [J].

Faist, J ;

Beck, M ;

Aellen, T ;

Gini, E .

APPLIED PHYSICS LETTERS, 2001, 78 (02) :147-149

[9] QUANTUM TUNNELING AND RELAXATION IN ASYMMETRIC COUPLED WELLS [J].

GURVITZ, SA ;

BARJOSEPH, I ;

DEVEAUD, B .

PHYSICAL REVIEW B, 1991, 43 (18) :14703-14706

[10] ELEMENTARY ELECTRONIC EXCITATIONS IN A QUASI-2-DIMENSIONAL ELECTRON-GAS [J].

JAIN, JK ;

DASSARMA, S .

PHYSICAL REVIEW B, 1987, 36 (11) :5949-5952

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