A novel grating-based spectrometer system without any light filter

A novel grating-based spectrometer system without any light filter was proposed. In order to obtain a pure spectrum, instead of inserting several filters into the light path in turn mechanically in the conventional grating-based spectrometer, the key features of the new method were measuring the rel...

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Bibliographic Details
Published inMeasurement science & technology Vol. 21; no. 3; p. 035601
Main Authors Huang, Mei-Zhen, Mu, Yong-Peng, Huang, Jin-Qing, Jin, Yu-Xi, Gao, Yang
Format Journal Article
LanguageEnglish
Published IOP Publishing 01.03.2010
Subjects
Algorithms
Arrays
Diffraction efficiency
High speed
Scanning
Spectra
Spectrometers
Wavelengths
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Summary:A novel grating-based spectrometer system without any light filter was proposed. In order to obtain a pure spectrum, instead of inserting several filters into the light path in turn mechanically in the conventional grating-based spectrometer, the key features of the new method were measuring the relative diffraction efficiency between the high-order spectrum and the first-order spectrum of the grating-based spectrometer system, and designing the algorithm, which could subtract the unwanted high-order and spurious spectrum. The verification experiments were carried out in the wavelength range of 240--810 nm with satisfactory results. This method is particularly useful for a high-speed full spectrum scanning system with a multi-channel array detector and meets the requirement of high-speed parallel spectral measurement.
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
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content type line 23
ISSN:0957-0233
1361-6501
DOI:10.1088/0957-0233/21/3/035601