Low-divergence surface-emitting terahertz quantum cascade lasers

Jonathan A. Fan; Mikhail A. Belkin; Federico Capasso; Suraj Khanna; Mohamed Lachab; Giles Davies; Edmund H. Linfield

doi:10.1109/CLEO.2007.4453166

Low-divergence surface-emitting terahertz quantum cascade lasers

Jonathan A. Fan, Mikhail A. Belkin, Federico Capasso, Suraj Khanna, Mohamed Lachab, Giles Davies, Edmund H. Linfield

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

Abstract

We investigate surface-emission via a second-order grating in terahertz quantum cascade lasers. We optimize grating design and suppress facet reflectivity with absorbing waveguide edges. Single-mode lasing, small beam divergence, and improved slope efficiency are observed.

Original language	English
Title of host publication	Conference on Lasers and Electro-Optics, 2007, CLEO 2007
DOIs	https://doi.org/10.1109/CLEO.2007.4453166
State	Published - 2007
Externally published	Yes
Event	Conference on Lasers and Electro-Optics, 2007, CLEO 2007 - Baltimore, MD, United States Duration: 6 May 2007 → 11 May 2007

Publication series

Name	Conference on Lasers and Electro-Optics, 2007, CLEO 2007

Conference

Conference	Conference on Lasers and Electro-Optics, 2007, CLEO 2007
Country/Territory	United States
City	Baltimore, MD
Period	6/05/07 → 11/05/07

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10.1109/CLEO.2007.4453166

Cite this

@inproceedings{a66cffbd4a044da9a6680480ca4a38c2,

title = "Low-divergence surface-emitting terahertz quantum cascade lasers",

abstract = "We investigate surface-emission via a second-order grating in terahertz quantum cascade lasers. We optimize grating design and suppress facet reflectivity with absorbing waveguide edges. Single-mode lasing, small beam divergence, and improved slope efficiency are observed.",

author = "Fan, {Jonathan A.} and Belkin, {Mikhail A.} and Federico Capasso and Suraj Khanna and Mohamed Lachab and Giles Davies and Linfield, {Edmund H.}",

year = "2007",

doi = "10.1109/CLEO.2007.4453166",

language = "English",

isbn = "9781557528346",

series = "Conference on Lasers and Electro-Optics, 2007, CLEO 2007",

booktitle = "Conference on Lasers and Electro-Optics, 2007, CLEO 2007",

note = "Conference on Lasers and Electro-Optics, 2007, CLEO 2007 ; Conference date: 06-05-2007 Through 11-05-2007",

}

Fan, JA, Belkin, MA, Capasso, F, Khanna, S, Lachab, M, Davies, G & Linfield, EH 2007, Low-divergence surface-emitting terahertz quantum cascade lasers. in Conference on Lasers and Electro-Optics, 2007, CLEO 2007., 4453166, Conference on Lasers and Electro-Optics, 2007, CLEO 2007, Conference on Lasers and Electro-Optics, 2007, CLEO 2007, Baltimore, MD, United States, 6/05/07. https://doi.org/10.1109/CLEO.2007.4453166

TY - GEN

T1 - Low-divergence surface-emitting terahertz quantum cascade lasers

AU - Fan, Jonathan A.

AU - Belkin, Mikhail A.

AU - Capasso, Federico

AU - Khanna, Suraj

AU - Lachab, Mohamed

AU - Davies, Giles

AU - Linfield, Edmund H.

PY - 2007

Y1 - 2007

N2 - We investigate surface-emission via a second-order grating in terahertz quantum cascade lasers. We optimize grating design and suppress facet reflectivity with absorbing waveguide edges. Single-mode lasing, small beam divergence, and improved slope efficiency are observed.

AB - We investigate surface-emission via a second-order grating in terahertz quantum cascade lasers. We optimize grating design and suppress facet reflectivity with absorbing waveguide edges. Single-mode lasing, small beam divergence, and improved slope efficiency are observed.

UR - http://www.scopus.com/inward/record.url?scp=82955227665&partnerID=8YFLogxK

U2 - 10.1109/CLEO.2007.4453166

DO - 10.1109/CLEO.2007.4453166

M3 - Conference contribution

AN - SCOPUS:82955227665

SN - 9781557528346

T3 - Conference on Lasers and Electro-Optics, 2007, CLEO 2007

BT - Conference on Lasers and Electro-Optics, 2007, CLEO 2007

T2 - Conference on Lasers and Electro-Optics, 2007, CLEO 2007

Y2 - 6 May 2007 through 11 May 2007

ER -

Low-divergence surface-emitting terahertz quantum cascade lasers

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