Reduction of facet reflectivity of quantum-cascade lasers with subwavelength gratings

Afusat O. Dirisu; Grace Silva; Zhijun Liu; Claire F. Gmachl; Fred J. Towner; John Bruno; Deborah L. Sivco

doi:10.1109/LPT.2006.890755

Reduction of facet reflectivity of quantum-cascade lasers with subwavelength gratings

Afusat O. Dirisu, Grace Silva, Zhijun Liu, Claire F. Gmachl, Fred J. Towner, John Bruno, Deborah L. Sivco

Research output: Contribution to journal › Article › peer-review

9 Scopus citations

Abstract

We demonstrate the reduction of the facet reflectivity of quantum-cascade lasers (QCLs) by using subwavelength gratings. The gratings were fabricated on λ = 4:9- and 9:8-μm QCLs using focused ion beam milling. Reflectivities as low as 1%-3% for the 4.9-μm QCL and as low as 4%-8% for the 9.8-μm QCL are reported.

Original language	English (US)
Pages (from-to)	221-223
Number of pages	3
Journal	IEEE Photonics Technology Letters
Volume	19
Issue number	4
DOIs	https://doi.org/10.1109/LPT.2006.890755
State	Published - Feb 15 2007

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Atomic and Molecular Physics, and Optics
Electrical and Electronic Engineering

Keywords

Antireflection (AR)
Grating
Midinfrared
Quantum-cascade lasers (QCLs)

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10.1109/LPT.2006.890755

Cite this

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title = "Reduction of facet reflectivity of quantum-cascade lasers with subwavelength gratings",

abstract = "We demonstrate the reduction of the facet reflectivity of quantum-cascade lasers (QCLs) by using subwavelength gratings. The gratings were fabricated on λ = 4:9- and 9:8-μm QCLs using focused ion beam milling. Reflectivities as low as 1%-3% for the 4.9-μm QCL and as low as 4%-8% for the 9.8-μm QCL are reported.",

keywords = "Antireflection (AR), Grating, Midinfrared, Quantum-cascade lasers (QCLs)",

author = "Dirisu, {Afusat O.} and Grace Silva and Zhijun Liu and Gmachl, {Claire F.} and Towner, {Fred J.} and John Bruno and Sivco, {Deborah L.}",

note = "Funding Information: Manuscript received October 6, 2006; revised December 6, 2006. This work was supported in part by National Science Foundation (NSF)-DMR-0213706 through Princeton University MRSEC PCCM, in part by NSF Grant EEC-0540832 (MIRTHE-ERC), and in part by Defense Advanced Research Projects Agency (DARPA) L-PAS.",

year = "2007",

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doi = "10.1109/LPT.2006.890755",

language = "English (US)",

volume = "19",

pages = "221--223",

journal = "IEEE Photonics Technology Letters",

issn = "1041-1135",

publisher = "Institute of Electrical and Electronics Engineers Inc.",

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TY - JOUR

T1 - Reduction of facet reflectivity of quantum-cascade lasers with subwavelength gratings

AU - Dirisu, Afusat O.

AU - Silva, Grace

AU - Liu, Zhijun

AU - Gmachl, Claire F.

AU - Towner, Fred J.

AU - Bruno, John

AU - Sivco, Deborah L.

N1 - Funding Information: Manuscript received October 6, 2006; revised December 6, 2006. This work was supported in part by National Science Foundation (NSF)-DMR-0213706 through Princeton University MRSEC PCCM, in part by NSF Grant EEC-0540832 (MIRTHE-ERC), and in part by Defense Advanced Research Projects Agency (DARPA) L-PAS.

PY - 2007/2/15

Y1 - 2007/2/15

N2 - We demonstrate the reduction of the facet reflectivity of quantum-cascade lasers (QCLs) by using subwavelength gratings. The gratings were fabricated on λ = 4:9- and 9:8-μm QCLs using focused ion beam milling. Reflectivities as low as 1%-3% for the 4.9-μm QCL and as low as 4%-8% for the 9.8-μm QCL are reported.

AB - We demonstrate the reduction of the facet reflectivity of quantum-cascade lasers (QCLs) by using subwavelength gratings. The gratings were fabricated on λ = 4:9- and 9:8-μm QCLs using focused ion beam milling. Reflectivities as low as 1%-3% for the 4.9-μm QCL and as low as 4%-8% for the 9.8-μm QCL are reported.

KW - Antireflection (AR)

KW - Grating

KW - Midinfrared

KW - Quantum-cascade lasers (QCLs)

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DO - 10.1109/LPT.2006.890755

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SN - 1041-1135

VL - 19

SP - 221

EP - 223

JO - IEEE Photonics Technology Letters

JF - IEEE Photonics Technology Letters

IS - 4

ER -

Reduction of facet reflectivity of quantum-cascade lasers with subwavelength gratings

Abstract

All Science Journal Classification (ASJC) codes

Keywords

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