High laser damage threshold LiNa5Mo9O30 prism: for visible to mid-infrared range

Xiaoli Du; Zeliang Gao; Lijuan Chen; Youxuan Sun; Xutang Tao

doi:10.3788/COL202220.051602

Journals >Chinese Optics Letters >Volume 20 >Issue 5 >Page 051602 > Article

Chinese Optics Letters
Vol. 20, Issue 5, 051602 (2022)

High laser damage threshold LiNa₅Mo₉O₃₀ prism: for visible to mid-infrared range

Xiaoli Du¹, Zeliang Gao^1、*, Lijuan Chen², Youxuan Sun¹, and Xutang Tao^1、**

Author Affiliations

¹State Key Laboratory of Crystal Materials, Shandong University, Jinan 250100, China

²School of Physics Science, University of Jinan, Jinan 250022, China

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DOI: 10.3788/COL202220.051602 Cite this Article Set citation alerts

Xiaoli Du, Zeliang Gao, Lijuan Chen, Youxuan Sun, Xutang Tao. High laser damage threshold LiNa₅Mo₉O₃₀ prism: for visible to mid-infrared range[J]. Chinese Optics Letters, 2022, 20(5): 051602 Copy Citation Text

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Abstract

In this study, an excellent polarization optical crystal

{LiNa}_{5} {Mo}_{9} O_{30}

with wide transmission range and high laser damage threshold was researched in detail. The laser damage threshold of the

{LiNa}_{5} {Mo}_{9} O_{30}

crystal was measured to be

2.64 {GW / cm}^{2}

, which was the highest among polarized optical crystals. The birefringence in the range of 0.435–5 μm was larger than 0.14, while the wedge angle between 31.94° and 32.12° would satisfy the application in this waveband. The extinction ratio of the fabricated prism with the wedge angel of 31.09° was larger than 15,000:1. The results show that the

{LiNa}_{5} {Mo}_{9} O_{30}

prism is an excellent polarization device, especially in the mid-infrared range and high-power applications.

Keywords

birefringence Glan prism laser damage threshold polarized optical crystal

n_{x}^{2} = 3.21637 + 0.04103 / (λ^{2} - 0.06306) - 0.00631 λ^{2},

(1)

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n_{y}^{2} = 3.82713 + 0.08012 / (λ^{2} - 0.03836) - 0.00367 λ^{2},

(2)

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n_{z}^{2} = 3.91313 + 0.08738 / (λ^{2} - 0.06202) - 0.01374 λ^{2} .

(3)

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α = \arcsin \frac{n_{2}}{n_{1}},

(4)

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Xiaoli Du, Zeliang Gao, Lijuan Chen, Youxuan Sun, Xutang Tao. High laser damage threshold LiNa₅Mo₉O₃₀ prism: for visible to mid-infrared range[J]. Chinese Optics Letters, 2022, 20(5): 051602

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