Photonic crystal quantum cascade lasers with improved threshold characteristics operating at room temperature

Sven Höfling; J. Heinrich; H. Hofmann; M. Kamp; J. P. Reithmaier; A. Forchel; J. Seufert

doi:10.1063/1.2387115

Photonic crystal quantum cascade lasers with improved threshold characteristics operating at room temperature

Sven Höfling, J. Heinrich, H. Hofmann, M. Kamp, J. P. Reithmaier, A. Forchel, J. Seufert

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6 Citations (Scopus)

Abstract

The authors have fabricated GaAs/Al0.45Ga0.55As quantum cascade lasers (QCLs) with two-dimensional photonic crystal (PhC) mirrors. The monolithically integrated PhC mirrors consist of a triangular lattice of similar to 14 mu m deeply etched semiconductor pillars. The PhC is designed to exhibit a photonic band gap for both the Gamma M and the Gamma K crystal orientation and provides reflectivities of > 80%. Compared to a reference laser with the same cavity length of 600 mu m but as-cleaved facets, the QCLs with Gamma M and Gamma K oriented PhCs show reductions of the threshold current by 34% and 30%, respectively. (c) 2006 American Institute of Physics.

Original language	English
Article number	191113
Number of pages	3
Journal	Applied Physics Letters
Volume	89
Issue number	19
DOIs	https://doi.org/10.1063/1.2387115
Publication status	Published - 6 Nov 2006

Keywords

ETCHED BRAGG-MIRRORS
SEMICONDUCTOR
REFLECTORS
PERFORMANCE

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10.1063/1.2387115

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title = "Photonic crystal quantum cascade lasers with improved threshold characteristics operating at room temperature",

abstract = "The authors have fabricated GaAs/Al0.45Ga0.55As quantum cascade lasers (QCLs) with two-dimensional photonic crystal (PhC) mirrors. The monolithically integrated PhC mirrors consist of a triangular lattice of similar to 14 mu m deeply etched semiconductor pillars. The PhC is designed to exhibit a photonic band gap for both the Gamma M and the Gamma K crystal orientation and provides reflectivities of > 80%. Compared to a reference laser with the same cavity length of 600 mu m but as-cleaved facets, the QCLs with Gamma M and Gamma K oriented PhCs show reductions of the threshold current by 34% and 30%, respectively. (c) 2006 American Institute of Physics.",

keywords = "ETCHED BRAGG-MIRRORS, SEMICONDUCTOR, REFLECTORS, PERFORMANCE",

author = "Sven H{\"o}fling and J. Heinrich and H. Hofmann and M. Kamp and Reithmaier, {J. P.} and A. Forchel and J. Seufert",

year = "2006",

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doi = "10.1063/1.2387115",

language = "English",

volume = "89",

journal = "Applied Physics Letters",

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publisher = "American Institute of Physics",

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TY - JOUR

T1 - Photonic crystal quantum cascade lasers with improved threshold characteristics operating at room temperature

AU - Höfling, Sven

AU - Heinrich, J.

AU - Hofmann, H.

AU - Kamp, M.

AU - Reithmaier, J. P.

AU - Forchel, A.

AU - Seufert, J.

PY - 2006/11/6

Y1 - 2006/11/6

N2 - The authors have fabricated GaAs/Al0.45Ga0.55As quantum cascade lasers (QCLs) with two-dimensional photonic crystal (PhC) mirrors. The monolithically integrated PhC mirrors consist of a triangular lattice of similar to 14 mu m deeply etched semiconductor pillars. The PhC is designed to exhibit a photonic band gap for both the Gamma M and the Gamma K crystal orientation and provides reflectivities of > 80%. Compared to a reference laser with the same cavity length of 600 mu m but as-cleaved facets, the QCLs with Gamma M and Gamma K oriented PhCs show reductions of the threshold current by 34% and 30%, respectively. (c) 2006 American Institute of Physics.

AB - The authors have fabricated GaAs/Al0.45Ga0.55As quantum cascade lasers (QCLs) with two-dimensional photonic crystal (PhC) mirrors. The monolithically integrated PhC mirrors consist of a triangular lattice of similar to 14 mu m deeply etched semiconductor pillars. The PhC is designed to exhibit a photonic band gap for both the Gamma M and the Gamma K crystal orientation and provides reflectivities of > 80%. Compared to a reference laser with the same cavity length of 600 mu m but as-cleaved facets, the QCLs with Gamma M and Gamma K oriented PhCs show reductions of the threshold current by 34% and 30%, respectively. (c) 2006 American Institute of Physics.

KW - ETCHED BRAGG-MIRRORS

KW - SEMICONDUCTOR

KW - REFLECTORS

KW - PERFORMANCE

U2 - 10.1063/1.2387115

DO - 10.1063/1.2387115

M3 - Article

SN - 0003-6951

VL - 89

JO - Applied Physics Letters

JF - Applied Physics Letters

IS - 19

M1 - 191113

ER -

Photonic crystal quantum cascade lasers with improved threshold characteristics operating at room temperature

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Keywords

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