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

Authors

  • Wynn Dunn Gil Dugang Improso ⋅ PH National Institute of Physics, University of the Philippines Diliman
  • Paul Leonard Atchong C. Hilario ⋅ PH Electrical and Electronics Engineering Institute, University of the Philippines Diliman
  • Giovanni A. Tapang ⋅ PH 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 (λLCTF). We found that spurious transmissions are observed in wavelengths away from λLCTF, especially at higher effective NA. 

SPP 2018 Proceedings cover

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Published

2018-05-23

Issue

2018: Proceedings of the 36th Samahang Pisika ng Pilipinas Physics Conference

Section

Condensed Matter Physics and Materials Science

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How to Cite

[1]
“Characterization of liquid crystal tunable filter spectral response with diverging incident light”, Proc. SPP, vol. 36, no. 1, pp. SPP–2018, May 2018, Accessed: Apr. 10, 2026. [Online]. Available: https://proceedings.spp-online.org/article/view/SPP-2018-2B-04