Optical anisotropy of NbOCl2

Shuin Jian Wu; Yi Wei Ho; Isa Ahmadalidokht; Goki Eda; Alexander Ling

doi:10.1117/12.2680985

3 October 2023 Optical anisotropy of NbOCl₂

Shuin Jian Wu, Yi Wei Ho, Isa Ahmadalidokht, Goki Eda, Alexander Ling

Author Affiliations +

Proceedings Volume 12653, Nanoengineering: Fabrication, Properties, Optics, Thin Films, and Devices XX; 126530M (2023) https://doi.org/10.1117/12.2680985
Event: SPIE Nanoscience + Engineering, 2023, San Diego, California, United States

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Abstract

Guo et al, 2023, report that NbOCl₂ is a novel thin-material SPDC source, but further optical measurements on thicker samples of the material suggest that NbOCl₂ does not behave like conventional SPDC producing materials. In this paper, we report the following: (1) NbOCl₂ is not completely transparent at the reported pump wavelength of 404 nm, (2) NbOCl₂ behaves as a polarizer at 405 nm, (3) coincidences above noise level around 810 nm were obtained when pumping NbOCl₂ at 405 nm and varied with pump polarization, and (4) pumping at the more transparent wavelength of 780 nm fails to yield any detectable SPDC photon pairs.

(2023) Published by SPIE. Downloading of the abstract is permitted for personal use only.

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Shuin Jian Wu, Yi Wei Ho, Isa Ahmadalidokht, Goki Eda, and Alexander Ling "Optical anisotropy of NbOCl₂", Proc. SPIE 12653, Nanoengineering: Fabrication, Properties, Optics, Thin Films, and Devices XX, 126530M (3 October 2023); https://doi.org/10.1117/12.2680985

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