Design of reflective volume Bragg grating holographic filters for Raman low wavenumber detection

Nan Xu; Jiankang Zhou; Weimin Shen

doi:10.1117/12.3040032

16 August 2024 Design of reflective volume Bragg grating holographic filters for Raman low wavenumber detection

Nan Xu, Jiankang Zhou, Weimin Shen

Proceedings Volume 13231, 4th International Conference on Laser, Optics, and Optoelectronic Technology (LOPET 2024); 132311F (2024) https://doi.org/10.1117/12.3040032
Event: 4th International Conference on Laser, Optics, and Optoelectronic Technology (LOPET 2024), 2024, Chongqing, China

Abstract

The implementation of low wavenumber Raman detection relies on high-performance optical filtering components. Reflective volume Bragg gratings exhibit excellent wavelength and angular selectivity, suitable for the narrowband, high-efficiency filtering requirements of low wavenumber Raman detection. Based on the derivation of the Kogelnik theory, an analysis of the simulated reflective VBG diffraction efficiency and bandwidth influencing factors is conducted. Finally, specific parameters are determined through the analysis to design a reflective holographic filter with a peak wavelength of 785nm and a bandwidth of 0.4nm. Raman spectra as low as 50cm-1 can be measured.

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Nan Xu, Jiankang Zhou, and Weimin Shen "Design of reflective volume Bragg grating holographic filters for Raman low wavenumber detection", Proc. SPIE 13231, 4th International Conference on Laser, Optics, and Optoelectronic Technology (LOPET 2024), 132311F (16 August 2024); https://doi.org/10.1117/12.3040032

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