The particle size distribution influence on the spectroscopic performance of CaF2 dispersed PDMS hybrid materials

Junfeng Zhu; Chenxi Zhao; Ryo Sakai; Hiroaki Yoshioka; Yuji Oki

doi:10.1117/12.2581237

5 March 2021 The particle size distribution influence on the spectroscopic performance of CaF₂ dispersed PDMS hybrid materials

Junfeng Zhu, Chenxi Zhao, Ryo Sakai, Hiroaki Yoshioka, Yuji Oki

Author Affiliations +

Proceedings Volume 11682, Optical Components and Materials XVIII; 116821I (2021) https://doi.org/10.1117/12.2581237
Event: SPIE OPTO, 2021, Online Only

Conference Poster

Abstract

A novel UV transparent visible scattering spectroscopic material based on refractive index matching by dispersing specific CaF₂ particles into the PDMS matrix was proposed. This hybrid material can be used to develop a UV bandpass filter that showed high transmittance around 260-280 nm and wider bandwidth in the UV region. Furthermore, micro-CaF2 particle size with narrower size distribution that can be fabricated by grinding, precipitation, and centrifugal separation, showed narrower bandwidth of transmittance spectra after dispersing in the PDMS matrix.

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Junfeng Zhu, Chenxi Zhao, Ryo Sakai, Hiroaki Yoshioka, and Yuji Oki "The particle size distribution influence on the spectroscopic performance of CaF₂ dispersed PDMS hybrid materials", Proc. SPIE 11682, Optical Components and Materials XVIII, 116821I (5 March 2021); https://doi.org/10.1117/12.2581237

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