GB/T 40293-2021 English PDF

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GB/T 40293-2021: Test method for refractive index of infrared optical chalcogenide films
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 40293-2021	199	Add to Cart	3 days	Test method for refractive index of infrared optical chalcogenide films	Valid

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Basic data

Standard ID: GB/T 40293-2021 (GB/T40293-2021)
Description (Translated English): Test method for refractive index of infrared optical chalcogenide films
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: N05
Word Count Estimation: 10,174
Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration

GB/T 40293-2021: Test method for refractive index of infrared optical chalcogenide films

---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Test method for refractive index of infrared optical chalcogenide films ICS 17.180.01 N05 National Standards of People's Republic of China Test method for refractive index of infrared chalcogenide optical film Released on 2021-08-20 2022-03-01 implementation State Administration of Market Supervision and Administration Issued by the National Standardization Management Committee

Foreword

This standard was drafted in accordance with the rules given in GB/T 1.1-2009. Please note that some of the contents of this document may involve patents. Publication of this document The agency is not responsible for identifying these patents. This standard was proposed by the China Machinery Industry Federation. This standard is under the jurisdiction of the National Optical and Photonics Standardization Technical Committee (SAC/TC103). Drafting organizations of this standard. Ningbo University, Hubei Xinhuaguang Information Materials Co., Ltd., Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, China Building Materials Research Institute, Phoenix Optics Co., Ltd., Suzhou Jingdingxin Optoelectronics Technology Co., Ltd., Daoming Optics Co., Ltd. Limited company. The main drafters of this standard. Song Baoan, Dai Shixun, Shen Xiang, Xu Guangyi, Hu Xiangping, Tang Xueqiong, Zhang Long, Zu Chengkui, He Xiaohu, Zhou Dongping, Wang Hong. Test method for refractive index of infrared chalcogenide optical film

1 Scope

This standard describes the test principle, test conditions, equipment, samples, Test procedure, data processing and refractive index calculation, calculation accuracy and test report. This standard applies to the test of the refractive index of infrared chalcogenide optical films, and the test of the refractive index of other optical films can be used as a reference.

2 Normative references

The following documents are indispensable for the application of this document. For dated reference documents, only the dated version applies to this article Pieces. For undated reference documents, the latest version (including all amendments) is applicable to this document. GB/T 33826-2017 Nano film thickness measurement on glass substrate stylus profilometer method GB/T 36969-2018 Nanotechnology Atomic Force Microscopy Method for Measuring the Thickness of Nano Films

3 Terms and definitions

The following terms and definitions apply to this document. 3.1 Refractive index The ratio of the propagation speed of light in vacuum to the propagation speed of light in the medium. Note. Rewrite GB/T 26332.1-2018, definition 2.2.6. 3.2 Spectral transmittance T(λ) The ratio of the spectral intensity of the transmitted and incident radiant energy flux or luminous flux. Note. Expressed as a percentage.

4 Principle

The principle is shown in Figure 1.First, place the samples on the spectrophotometer and Fourier infrared spectrometer test benches, so that the test light Pass the sample vertically; secondly, set the spectral test range, measure the spectral transmittance T(λ) of the sample, and then combine the principle of multi-beam interference to obtain the Formula (1) ~ Formula (3). TM=T(n,d,α) (1) Tm=T(n,d,α) (2) 2nd=mλ (3) Where. TM --- the upper envelope of the transmittance curve; Tm --- the lower envelope of the transmittance curve; ......

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