Growth and Optical Properties of Big-sized GaSe Single Crystals

Tianhui Ma; Chongqiang Zhu; Zuotao Lei; Chunhui Yang; Hongchen Zhang; Huiwen Wang

doi:10.14062/j.issn.0454-5648.20190330

Growth and Optical Properties of Big-sized GaSe Single Crystals

Tianhui Ma
, Chongqiang Zhu^*
, Zuotao Lei
, Chunhui Yang
, Hongchen Zhang
, Huiwen Wang

^*Corresponding author for this work

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

1 Scopus citations

Abstract

GaSe is one of novel mid, far-IR and THz nonlinear optical materials with the excellent comprehensive performance. GaSe polycrystalline with a mass of 300g was synthesized by a two-temperature zone method. GaSe single crystals with 40mm in diameter and 130mm in length were obtained via a vertical Bridgman-Stockbarger (B-S) technique. The thermal and optical properties were investigated. The transparency range is from 0.64μm to 17.80μm at the absorption level of 1cm^-1. The absorption from 0.64μm to 12.82μm is less than 0.1cm^-1. The THz absorption spectra show two absorption peaks at 0.58THz and 1.10THz, and the absorption coefficients both are below 5.5cm^-1. The laser damage threshold of GaSe single crystal is 3.2 J/cm².

Translated title of the contribution	大尺寸GaSe单晶生长和光学性能
Original language	English
Pages (from-to)	182-186
Number of pages	5
Journal	Kuei Suan Jen Hsueh Pao/Journal of the Chinese Ceramic Society
Volume	48
Issue number	2
DOIs	https://doi.org/10.14062/j.issn.0454-5648.20190330
State	Published - 1 Feb 2020
Externally published	Yes

Keywords

Gallium selenide crystal
Mid, far-infared laser
Nonlinear optical materials
Terahertz

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10.14062/j.issn.0454-5648.20190330

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title = "Growth and Optical Properties of Big-sized GaSe Single Crystals",

abstract = "GaSe is one of novel mid, far-IR and THz nonlinear optical materials with the excellent comprehensive performance. GaSe polycrystalline with a mass of 300g was synthesized by a two-temperature zone method. GaSe single crystals with 40mm in diameter and 130mm in length were obtained via a vertical Bridgman-Stockbarger (B-S) technique. The thermal and optical properties were investigated. The transparency range is from 0.64μm to 17.80μm at the absorption level of 1cm-1. The absorption from 0.64μm to 12.82μm is less than 0.1cm-1. The THz absorption spectra show two absorption peaks at 0.58THz and 1.10THz, and the absorption coefficients both are below 5.5cm-1. The laser damage threshold of GaSe single crystal is 3.2 J/cm2.",

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author = "Tianhui Ma and Chongqiang Zhu and Zuotao Lei and Chunhui Yang and Hongchen Zhang and Huiwen Wang",

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T1 - Growth and Optical Properties of Big-sized GaSe Single Crystals

AU - Ma, Tianhui

AU - Zhu, Chongqiang

AU - Lei, Zuotao

AU - Yang, Chunhui

AU - Zhang, Hongchen

AU - Wang, Huiwen

PY - 2020/2/1

Y1 - 2020/2/1

N2 - GaSe is one of novel mid, far-IR and THz nonlinear optical materials with the excellent comprehensive performance. GaSe polycrystalline with a mass of 300g was synthesized by a two-temperature zone method. GaSe single crystals with 40mm in diameter and 130mm in length were obtained via a vertical Bridgman-Stockbarger (B-S) technique. The thermal and optical properties were investigated. The transparency range is from 0.64μm to 17.80μm at the absorption level of 1cm-1. The absorption from 0.64μm to 12.82μm is less than 0.1cm-1. The THz absorption spectra show two absorption peaks at 0.58THz and 1.10THz, and the absorption coefficients both are below 5.5cm-1. The laser damage threshold of GaSe single crystal is 3.2 J/cm2.

AB - GaSe is one of novel mid, far-IR and THz nonlinear optical materials with the excellent comprehensive performance. GaSe polycrystalline with a mass of 300g was synthesized by a two-temperature zone method. GaSe single crystals with 40mm in diameter and 130mm in length were obtained via a vertical Bridgman-Stockbarger (B-S) technique. The thermal and optical properties were investigated. The transparency range is from 0.64μm to 17.80μm at the absorption level of 1cm-1. The absorption from 0.64μm to 12.82μm is less than 0.1cm-1. The THz absorption spectra show two absorption peaks at 0.58THz and 1.10THz, and the absorption coefficients both are below 5.5cm-1. The laser damage threshold of GaSe single crystal is 3.2 J/cm2.

KW - Gallium selenide crystal

KW - Mid, far-infared laser

KW - Nonlinear optical materials

KW - Terahertz

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JO - Kuei Suan Jen Hsueh Pao/Journal of the Chinese Ceramic Society

JF - Kuei Suan Jen Hsueh Pao/Journal of the Chinese Ceramic Society

IS - 2

ER -

Growth and Optical Properties of Big-sized GaSe Single Crystals

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Keywords

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