Terahertz quantum-cascade lasers based on an interlaced photon-phonon cascade

被引：51

作者：

Köhler, R

Tredicucci, A

Mauro, C

Beltram, F

Beere, HE

Linfield, EH

Davies, AG

Ritchie, DA

机构：

[1] INFM, NEST, I-56126 Pisa, Italy

[2] Scuola Normale Super Pisa, I-56126 Pisa, Italy

[3] Univ Cambridge, Cavendish Lab, Cambridge CB3 0HE, England

来源：

APPLIED PHYSICS LETTERS | 2004年 / 84卷 / 08期

基金：

英国工程与自然科学研究理事会;

关键词：

D O I：

10.1063/1.1650905

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

A THz (lambdasimilar to80 mum) quantum-cascade laser utilizing alternating photon- and phonon-emitting stages has been developed to achieve efficient extraction of electrons from the lower laser level. Thermal backfilling of electrons is drastically reduced leading to an operation up to 95 K and a weak temperature dependence of the power versus current slope efficiency. The threshold current density is 280 A cm(-2) at 6 K and increases to 580 A cm(-2) at 90 K. Peak output powers of 10 mW at 30 K and 4 mW at 80 K are obtained. (C) 2004 American Institute of Physics.

引用

页码：1266 / 1268

页数：3

共 10 条

[1] Continuous-wave operation of far-infrared quantum cascade lasers [J].

Ajili, L ;

Scalari, G ;

Hofstetter, D ;

Beck, M ;

Faist, J ;

Beere, H ;

Davies, G ;

Linfield, E ;

Ritchie, D .

ELECTRONICS LETTERS, 2002, 38 (25) :1675-1676

[2] Continuous-wave operation of terahertz quantum-cascade lasers [J].

Barbieri, S ;

Alton, J ;

Dhillon, SS ;

Beere, HE ;

Evans, M ;

Linfield, EH ;

Davies, AG ;

Ritchie, DA ;

Köhler, R ;

Tredicucci, A ;

Beltram, F .

IEEE JOURNAL OF QUANTUM ELECTRONICS, 2003, 39 (04) :586-591

[3] Quantum cascade lasers [J].

Capasso, F ;

Gmachl, C ;

Sivco, DL ;

Cho, AY .

PHYSICS TODAY, 2002, 55 (05) :34-40

[4] Low-threshold quantum-cascade lasers at 3.5 THz (λ=85 μm) [J].

Köhler, R ;

Tredicucci, A ;

Beltram, F ;

Beere, HE ;

Linfield, EH ;

Davies, AG ;

Ritchie, DA .

OPTICS LETTERS, 2003, 28 (10) :810-812

[5] High-performance continuous-wave operation of superlattice terahertz quantum-cascade lasers [J].

Köhler, R ;

Tredicucci, A ;

Beltram, F ;

Beere, HE ;

Linfield, EH ;

Davies, AG ;

Ritchie, DA ;

Dhillon, SS ;

Sirtori, C .

APPLIED PHYSICS LETTERS, 2003, 82 (10) :1518-1520

[6] Terahertz semiconductor-heterostructure laser [J].

Köhler, R ;

Tredicucci, A ;

Beltram, F ;

Beere, HE ;

Linfield, EH ;

Davies, AG ;

Ritchie, DA ;

Iotti, RC ;

Rossi, F .

NATURE, 2002, 417 (6885) :156-159

[7] Far-infrared (λ ≃ 87 μm) bound-to-continuum quantum-cascade lasers operating up to 90 K [J].

Scalari, G ;

Ajili, L ;

Faist, J ;

Beere, H ;

Linfield, E ;

Ritchie, D ;

Davies, G .

APPLIED PHYSICS LETTERS, 2003, 82 (19) :3165-3167

[8] Threshold reduction in quantum cascade lasers with partially undoped, dual-wavelength interdigitated cascades [J].

Straub, A ;

Mosely, TS ;

Gmachl, C ;

Colombelli, R ;

Troccoli, M ;

Capasso, F ;

Sivco, DL ;

Cho, AY .

APPLIED PHYSICS LETTERS, 2002, 80 (16) :2845-2847

[9]

TREDICUCCI A, IN PRESS PHYSICA A E

[10] 3.4-THz quantum cascade laser based on longitudinal-optical-phonon scattering for depopulation [J].

Williams, BS ;

Callebaut, H ;

Kumar, S ;

Hu, Q ;

Reno, JL .

APPLIED PHYSICS LETTERS, 2003, 82 (07) :1015-1017

← 1 →