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

  • 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 (λLCTF). We found that spurious transmissions are observed in wavelengths away from λLCTF, especially at higher effective NA. 

Published
2018-05-23
How to Cite
[1]
W. D. G. Improso, P. L. A. Hilario, and G. 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://paperview.spp-online.org/proceedings/article/view/SPP-2018-2B-04.
Section
Condensed Matter and Materials Science