Ge 基底LaF3-ZnS-Ge 高耐用中波红外增透膜

Haijuan Cheng; Xiaohui Yu; Lang Peng; Qunyan Pu; Yi Cai; Maozhong Li; Weisheng Yang; Yuzhuo Bai; Jinsong Zhao; Lingxue Wang

doi:10.3788/IRLA201948.1117001

Ge 基底LaF₃-ZnS-Ge 高耐用中波红外增透膜

Translated title of the contribution: LaF₃-ZnS-Ge high-durability MWIR antireflective film on Ge substrate

Haijuan Cheng, Xiaohui Yu, Lang Peng, Qunyan Pu, Yi Cai, Maozhong Li, Weisheng Yang, Yuzhuo Bai, Jinsong Zhao, Lingxue Wang^*

^*Corresponding author for this work

School of Optics and Photonics

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

7 Citations (Scopus)

Abstract

Evaporation characteristics and optical constants of LaF₃ materials in 2.5-12 μm infrared band were investigated. With low refractive index LaF₃ materials, high-durability antireflection (AR) coatings in 3.7-4.8 μm medium-wavelength infrared bands were designed and fabricated on Ge substrate. SEM image of the AR coatings with the LaF₃ shows that the surface nanocrystals is uniform and densified. The measured optical properties by Fourier tranform infrared spectrometer indicate that the peak transmittance is as high as 99.4%, and the average transmittance increases to 98.8% from 47.7% in 3.7-4.8 μm after double-sided coating. The firmness and durability environmental tests signify that this AR coating can work in harsh environment while maintaining good optical properties.

Translated title of the contribution	LaF₃-ZnS-Ge high-durability MWIR antireflective film on Ge substrate
Original language	Chinese (Traditional)
Article number	1117001
Journal	Hongwai yu Jiguang Gongcheng/Infrared and Laser Engineering
Volume	48
Issue number	11
DOIs	https://doi.org/10.3788/IRLA201948.1117001
Publication status	Published - 25 Nov 2019

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@article{cdb346818e014aea9d2be5060537cbf9,

title = "Ge 基底LaF3-ZnS-Ge 高耐用中波红外增透膜",

abstract = "Evaporation characteristics and optical constants of LaF3 materials in 2.5-12 μm infrared band were investigated. With low refractive index LaF3 materials, high-durability antireflection (AR) coatings in 3.7-4.8 μm medium-wavelength infrared bands were designed and fabricated on Ge substrate. SEM image of the AR coatings with the LaF3 shows that the surface nanocrystals is uniform and densified. The measured optical properties by Fourier tranform infrared spectrometer indicate that the peak transmittance is as high as 99.4\%, and the average transmittance increases to 98.8\% from 47.7\% in 3.7-4.8 μm after double-sided coating. The firmness and durability environmental tests signify that this AR coating can work in harsh environment while maintaining good optical properties.",

keywords = "Antireflective film, High durability, LaF, Medium-wavelength infrared",

author = "Haijuan Cheng and Xiaohui Yu and Lang Peng and Qunyan Pu and Yi Cai and Maozhong Li and Weisheng Yang and Yuzhuo Bai and Jinsong Zhao and Lingxue Wang",

year = "2019",

month = nov,

day = "25",

doi = "10.3788/IRLA201948.1117001",

language = "繁体中文",

volume = "48",

journal = "Hongwai yu Jiguang Gongcheng/Infrared and Laser Engineering",

issn = "1007-2276",

publisher = "Science Press",

number = "11",

}

TY - JOUR

T1 - Ge 基底LaF3-ZnS-Ge 高耐用中波红外增透膜

AU - Cheng, Haijuan

AU - Yu, Xiaohui

AU - Peng, Lang

AU - Pu, Qunyan

AU - Cai, Yi

AU - Li, Maozhong

AU - Yang, Weisheng

AU - Bai, Yuzhuo

AU - Zhao, Jinsong

AU - Wang, Lingxue

PY - 2019/11/25

Y1 - 2019/11/25

N2 - Evaporation characteristics and optical constants of LaF3 materials in 2.5-12 μm infrared band were investigated. With low refractive index LaF3 materials, high-durability antireflection (AR) coatings in 3.7-4.8 μm medium-wavelength infrared bands were designed and fabricated on Ge substrate. SEM image of the AR coatings with the LaF3 shows that the surface nanocrystals is uniform and densified. The measured optical properties by Fourier tranform infrared spectrometer indicate that the peak transmittance is as high as 99.4%, and the average transmittance increases to 98.8% from 47.7% in 3.7-4.8 μm after double-sided coating. The firmness and durability environmental tests signify that this AR coating can work in harsh environment while maintaining good optical properties.

AB - Evaporation characteristics and optical constants of LaF3 materials in 2.5-12 μm infrared band were investigated. With low refractive index LaF3 materials, high-durability antireflection (AR) coatings in 3.7-4.8 μm medium-wavelength infrared bands were designed and fabricated on Ge substrate. SEM image of the AR coatings with the LaF3 shows that the surface nanocrystals is uniform and densified. The measured optical properties by Fourier tranform infrared spectrometer indicate that the peak transmittance is as high as 99.4%, and the average transmittance increases to 98.8% from 47.7% in 3.7-4.8 μm after double-sided coating. The firmness and durability environmental tests signify that this AR coating can work in harsh environment while maintaining good optical properties.

KW - Antireflective film

KW - High durability

KW - LaF

KW - Medium-wavelength infrared

UR - https://www.scopus.com/pages/publications/85076697808

U2 - 10.3788/IRLA201948.1117001

DO - 10.3788/IRLA201948.1117001

M3 - 文章

AN - SCOPUS:85076697808

SN - 1007-2276

VL - 48

JO - Hongwai yu Jiguang Gongcheng/Infrared and Laser Engineering

JF - Hongwai yu Jiguang Gongcheng/Infrared and Laser Engineering

IS - 11

M1 - 1117001

ER -

Ge 基底LaF₃-ZnS-Ge 高耐用中波红外增透膜

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