Chip-size wavelength detector based on a gradient grating period guided-mode resonance filter

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

In this study, we designed, fabricated and demonstrated a compact wavelength detection system based on a gradient grating period guided-mode resonance filter (GGP-GMRF) mounted on a linear charge-coupled device (CCD) camera. The GGPGMRF was first fabricated through nanoreplica molding on a plastic substrate, followed by the deposition of a thin TiO2 film. The grating periods of the GGP-GMRF vary from 250 to 550 nm with a 2 nm increment in each period consisting of 100 cycles. The results show that a 6 mm long GGP-GMRF has a filtering range of 506 to 915 nm. Upon illumination, the GGP-GMRF reflects a particular wavelength of light resulting in the minimum transmission of that wavelength. Hence, the GGP-GMRF provides a spatially dependent minimum transmission depending on the wavelength of the incident light. The linear CCD underneath the GGP-GMRF measures the transmitted intensity, and the wavelength of the incident light can be correlated with the location of the minimum intensity. For the demonstrated GGP-GMRF and CCD system, a spectral resolution of 1 nm can be achieved.

Original languageEnglish
Title of host publicationNovel Optical Systems Design and Optimization XIX
EditorsArthur J. Davis, Cornelius F. Hahlweg, Joseph R. Mulley
PublisherSPIE
ISBN (Electronic)9781510602878
DOIs
StatePublished - 1 Jan 2016
Event19th Annual Conference for Novel Optical Systems Design and Optimization - San Diego, United States
Duration: 29 Aug 201630 Aug 2016

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume9948
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Conference

Conference19th Annual Conference for Novel Optical Systems Design and Optimization
CountryUnited States
CitySan Diego
Period29/08/1630/08/16

Keywords

  • Guided-Mode Resonance
  • Linear Filter
  • Subwavelength Nanostructure

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  • Cite this

    Lin, H. A., Hsu, H-Y., & Huang, C-S. (2016). Chip-size wavelength detector based on a gradient grating period guided-mode resonance filter. In A. J. Davis, C. F. Hahlweg, & J. R. Mulley (Eds.), Novel Optical Systems Design and Optimization XIX [994809] (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 9948). SPIE. https://doi.org/10.1117/12.2235403