Directional and low-divergence emission in a rounded half-moon shaped microcavity

Myung Woon Kim; Kyu Won Park; Chang Hwan Yi; Chil Min Kim

doi:10.1063/1.3598406

Directional and low-divergence emission in a rounded half-moon shaped microcavity

Myung Woon Kim, Kyu Won Park, Chang Hwan Yi, Chil Min Kim

Department of Physics and Chemistry

Sogang University

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

6 Scopus citations

Abstract

Emission characteristics of a rounded half-moon shaped InGaAsP semiconductor microcavity laser are studied. When excited by pulse current, the laser generates whispering gallery type modes (WGTMs) with equidistant mode spacing in two directions with a narrow divergence angle of 4°. It is confirmed from the mode spacing that the lasing modes are WGTMs. A numerical analysis by the boundary element method shows that the emission direction of resonances well coincides with the experimental result.

Original language	English
Article number	241110
Journal	Applied Physics Letters
Volume	98
Issue number	24
DOIs	https://doi.org/10.1063/1.3598406
State	Published - 13 Jun 2011

Bibliographical note

Funding Information:
This work is supported by Acceleration Research (Center for Quantum Chaos Application) of MEST/NRF.

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title = "Directional and low-divergence emission in a rounded half-moon shaped microcavity",

abstract = "Emission characteristics of a rounded half-moon shaped InGaAsP semiconductor microcavity laser are studied. When excited by pulse current, the laser generates whispering gallery type modes (WGTMs) with equidistant mode spacing in two directions with a narrow divergence angle of 4°. It is confirmed from the mode spacing that the lasing modes are WGTMs. A numerical analysis by the boundary element method shows that the emission direction of resonances well coincides with the experimental result.",

author = "Kim, {Myung Woon} and Park, {Kyu Won} and Yi, {Chang Hwan} and Kim, {Chil Min}",

note = "Funding Information: This work is supported by Acceleration Research (Center for Quantum Chaos Application) of MEST/NRF. ",

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AU - Kim, Myung Woon

AU - Park, Kyu Won

AU - Yi, Chang Hwan

AU - Kim, Chil Min

N1 - Funding Information: This work is supported by Acceleration Research (Center for Quantum Chaos Application) of MEST/NRF.

PY - 2011/6/13

Y1 - 2011/6/13

N2 - Emission characteristics of a rounded half-moon shaped InGaAsP semiconductor microcavity laser are studied. When excited by pulse current, the laser generates whispering gallery type modes (WGTMs) with equidistant mode spacing in two directions with a narrow divergence angle of 4°. It is confirmed from the mode spacing that the lasing modes are WGTMs. A numerical analysis by the boundary element method shows that the emission direction of resonances well coincides with the experimental result.

AB - Emission characteristics of a rounded half-moon shaped InGaAsP semiconductor microcavity laser are studied. When excited by pulse current, the laser generates whispering gallery type modes (WGTMs) with equidistant mode spacing in two directions with a narrow divergence angle of 4°. It is confirmed from the mode spacing that the lasing modes are WGTMs. A numerical analysis by the boundary element method shows that the emission direction of resonances well coincides with the experimental result.

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JO - Applied Physics Letters

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Directional and low-divergence emission in a rounded half-moon shaped microcavity

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