Analysis of surface emitting distributed-feedback quantum cascade laser based on a surface-plasmon waveguide

Guo Wanhong; Lu Quanyong; Liu Junqi; Zhang Wei; Jiang Yuchao; Li Lu; Wang Lijun; Liu Fengqi; Wang Zhanguo

doi:10.1088/1674-4926/31/11/114014

Analysis of surface emitting distributed-feedback quantum cascade laser based on a surface-plasmon waveguide

Guo Wanhong^*, Lu Quanyong, Liu Junqi, Zhang Wei, Jiang Yuchao, Li Lu, Wang Lijun, Liu Fengqi, Wang Zhanguo

^*Corresponding author for this work

Center for Quantum Devices (CQD)

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

6 Scopus citations

Abstract

An analysis of a surface emitting distributed-feedback quantum cascade laser (DFB QCL) based on a surface-plasmon waveguide is presented. The second-order grating realized by the sole patterning of the top metal provides strong feedback. The analysis is based on a coupled-mode theory derived from exact Floquet-Bloch solutions of the infinite periodic structure. The surface outcoupling efficiency and threshold gain for the optimized device design are 43% and 12 cm^-1, respectively, which represent great improvements on the conventional dielectric waveguide based DFB QCL with typical values of 17.5% and 20 cm^-1.

Original language	English (US)
Pages (from-to)	1140141-1140145
Number of pages	5
Journal	Journal of Semiconductors
Volume	31
Issue number	11
DOIs	https://doi.org/10.1088/1674-4926/31/11/114014
State	Published - Nov 2010

Keywords

Distributed feedback lasers
Quantum cascade laser
Surface emission
Surface plasmon waveguide

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Electrical and Electronic Engineering
Materials Chemistry

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10.1088/1674-4926/31/11/114014

Cite this

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title = "Analysis of surface emitting distributed-feedback quantum cascade laser based on a surface-plasmon waveguide",

abstract = "An analysis of a surface emitting distributed-feedback quantum cascade laser (DFB QCL) based on a surface-plasmon waveguide is presented. The second-order grating realized by the sole patterning of the top metal provides strong feedback. The analysis is based on a coupled-mode theory derived from exact Floquet-Bloch solutions of the infinite periodic structure. The surface outcoupling efficiency and threshold gain for the optimized device design are 43% and 12 cm-1, respectively, which represent great improvements on the conventional dielectric waveguide based DFB QCL with typical values of 17.5% and 20 cm-1.",

keywords = "Distributed feedback lasers, Quantum cascade laser, Surface emission, Surface plasmon waveguide",

author = "Guo Wanhong and Lu Quanyong and Liu Junqi and Zhang Wei and Jiang Yuchao and Li Lu and Wang Lijun and Liu Fengqi and Wang Zhanguo",

year = "2010",

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doi = "10.1088/1674-4926/31/11/114014",

language = "English (US)",

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TY - JOUR

T1 - Analysis of surface emitting distributed-feedback quantum cascade laser based on a surface-plasmon waveguide

AU - Wanhong, Guo

AU - Quanyong, Lu

AU - Junqi, Liu

AU - Wei, Zhang

AU - Yuchao, Jiang

AU - Lu, Li

AU - Lijun, Wang

AU - Fengqi, Liu

AU - Zhanguo, Wang

PY - 2010/11

Y1 - 2010/11

N2 - An analysis of a surface emitting distributed-feedback quantum cascade laser (DFB QCL) based on a surface-plasmon waveguide is presented. The second-order grating realized by the sole patterning of the top metal provides strong feedback. The analysis is based on a coupled-mode theory derived from exact Floquet-Bloch solutions of the infinite periodic structure. The surface outcoupling efficiency and threshold gain for the optimized device design are 43% and 12 cm-1, respectively, which represent great improvements on the conventional dielectric waveguide based DFB QCL with typical values of 17.5% and 20 cm-1.

AB - An analysis of a surface emitting distributed-feedback quantum cascade laser (DFB QCL) based on a surface-plasmon waveguide is presented. The second-order grating realized by the sole patterning of the top metal provides strong feedback. The analysis is based on a coupled-mode theory derived from exact Floquet-Bloch solutions of the infinite periodic structure. The surface outcoupling efficiency and threshold gain for the optimized device design are 43% and 12 cm-1, respectively, which represent great improvements on the conventional dielectric waveguide based DFB QCL with typical values of 17.5% and 20 cm-1.

KW - Distributed feedback lasers

KW - Quantum cascade laser

KW - Surface emission

KW - Surface plasmon waveguide

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EP - 1140145

JO - Journal of Semiconductors

JF - Journal of Semiconductors

IS - 11

ER -

Analysis of surface emitting distributed-feedback quantum cascade laser based on a surface-plasmon waveguide

Abstract

Keywords

ASJC Scopus subject areas

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