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Reflection type single-order diffraction grating

Weng Yong-Chao Kuang Long-Yu Gao Nan Cao Lei-Feng Zhu Xiao-Li Wang Xiao-Hua Xie Chang-Qing

Reflection type single-order diffraction grating

Weng Yong-Chao, Kuang Long-Yu, Gao Nan, Cao Lei-Feng, Zhu Xiao-Li, Wang Xiao-Hua, Xie Chang-Qing
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  • Abstract views:  6148
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  • Received Date:  16 November 2011
  • Accepted Date:  10 January 2012
  • Published Online:  05 August 2012

Reflection type single-order diffraction grating

  • 1. State Key Laboratory of High-Power Semiconductor Lasers, Changchun University of Science and Technology, Changchun 130022, China;
  • 2. Key Laboratory of Nano-Fabrication and Novel Devices Integrated Technology, Institute of Microelectronics, Chinese Academy of Sciences, Beijing 100029, China;
  • 3. National Key Laboratory of High-temperature and High-density Plasma Physics, Research Center of Laser Fusion China Academy of Engineering Physics, Mianyang 621900, China
Fund Project:  Project supported by the National Science and Technology Major Project of the Ministry of Science and Technology of China (Grant No. 2008ZX02501).

Abstract: The development trend of single-order diffraction grating is introduced. The feasibility of single-order diffraction grating is theoretically demonstrated, and a novel diffractive optical element named quasi-sinusoidal reflection type single-order diffraction grating(QSRG) is proposed. It can suppress higher order diffraction, and improve the signal-noise-ratio (SNR) and accuracy. The experimental results verify this new type of dispersion component, where the higher order diffraction components are efficiently suppressed, which accords well with theoretical prediction. These results are expected to be widely used in the reflection spectrum measurement system.

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