Acta Optica Sinica, Volume. 35, Issue 8, 812001(2015)
Optical Design and Stray Light Suppression of A New Portable Echelle Spectrometer
Echelle spectrometer is becoming a hot research and focus of modern spectrograph with the outstanding features of high resolution, small size, full spectrum transient direct- reading. In order to further refine its volume, improve the signal to noise ratio and the detection limit, a new structure of echelle spectrometer is designed. By folding main optical path, the new design has smaller size and lower stray light without reducing spectral resolution and image quality. It′ s optical size is less than 165 mm × 70 mm × 65 mm, and spectral resolution is 0.06 nm@200 nm. The baffle and diaphragm is designed to further reduce stray light. Through ray tracing simulation, the stray light of the new echelle spectrometer is less than 2×10-5 , the signal to noise ratio is improved significantly.
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Yang Jin, Yin Lu, Yao Xuefeng, Bayanheshig, Tang Yuguo, Zhu Jiwei. Optical Design and Stray Light Suppression of A New Portable Echelle Spectrometer[J]. Acta Optica Sinica, 2015, 35(8): 812001
Category: Instrumentation, Measurement and Metrology
Received: Nov. 24, 2014
Accepted: --
Published Online: Jul. 23, 2015
The Author Email: Jin Yang (yangjinl@mail.ustc.edu.cn)