Design of optical system for spectrometer involving a volume phase holographic transmission grating

Zhong Ren; Guodong Liu; Zhen Huang

doi:10.1117/12.2067743

6 August 2014 Design of optical system for spectrometer involving a volume phase holographic transmission grating

Zhong Ren, Guodong Liu, Zhen Huang

Proceedings Volume 9281, 7th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Advanced Optical Manufacturing Technologies; 928125 (2014) https://doi.org/10.1117/12.2067743
Event: 7th International Symposium on Advanced Optical Manufacturing and Testing Technologies (AOMATT 2014), 2014, Harbin, China

Abstract

At present, spectrometer has popularly being used into varieties of fields including environment, food, medical health monitoring and metal industry because it has the advantages of noninvasive, high efficient and convenient etc. The performance of the spectrometer is determined by its optical system. Normally, according to the apparatus and principle of splitting-light, optical system of spectrometer can be classified into several categories, for example, filter-typed, dispersion typed, Fourier transform typed and acousto-optic tunable typed. The grating typed optical system has been popularly used into the spectrometer due to the features of higher diffraction efficiency, resolution and dispersion rate etc. In the grating-typed optical system, although the traditional plane and concave grating have usually been used into some spectrometers, some disadvantages of them still limit their applications, such as, large aberration, worse spectral flatness and low deficiency, etc. In this paper, to overcome these disadvantages of the traditional plane and concave grating, a novel optical system for spectrometer (OSS) based on volume phase holographic transmission (VPHT) grating was designed. For this novel grating, its manufacture and theories were investigated, and its diffraction efficiency was firstly numerically simulated according to different parameters. In order to prove the feasibility of this designed OSS, the spectral calibration experiment was performed and the spectral resolution reached 2nm.

Citation Download Citation

Zhong Ren, Guodong Liu, and Zhen Huang "Design of optical system for spectrometer involving a volume phase holographic transmission grating", Proc. SPIE 9281, 7th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Advanced Optical Manufacturing Technologies, 928125 (6 August 2014); https://doi.org/10.1117/12.2067743

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KEYWORDS

Diffraction gratings

Diffraction

Spectroscopy

Optical design

Holography

Absorbance

Imaging systems

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