Characterization of liquid crystal tunable filter spectral response with diverging incident light

Authors

Wynn Dunn Gil Dugang Improso National Institute of Physics, University of the Philippines Diliman
Paul Leonard Atchong C. Hilario Electrical and Electronics Engineering Institute, University of the Philippines Diliman
Giovanni A. Tapang National Institute of Physics, University of the Philippines Diliman

Abstract

The normalized spectral transmission of a liquid crystal tunable filter was characterized. Light was focused using a lens, and the diverging light from the focus is made incident to the LCTF. The output spectrum is measured by a spectrometer when the LCTF is set to allow a certain wavelength (λ_LCTF). We found that spurious transmissions are observed in wavelengths away from λ_LCTF, especially at higher effective NA.

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Published

2018-05-23

How to Cite

[1]

WDGD Improso, PLAC Hilario, and GA Tapang, Characterization of liquid crystal tunable filter spectral response with diverging incident light, Proceedings of the Samahang Pisika ng Pilipinas 36, SPP-2018-2B-04 (2018). URL: https://proceedings.spp-online.org/article/view/SPP-2018-2B-04.