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

研究成果: Conference contribution同行評審

摘要

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.

原文English
主出版物標題Novel Optical Systems Design and Optimization XIX
編輯Arthur J. Davis, Cornelius F. Hahlweg, Joseph R. Mulley
發行者SPIE
ISBN(電子)9781510602878
DOIs
出版狀態Published - 2016
事件19th Annual Conference for Novel Optical Systems Design and Optimization - San Diego, 美國
持續時間: 29 8月 201630 8月 2016

出版系列

名字Proceedings of SPIE - The International Society for Optical Engineering
9948
ISSN(列印)0277-786X
ISSN(電子)1996-756X

Conference

Conference19th Annual Conference for Novel Optical Systems Design and Optimization
國家/地區美國
城市San Diego
期間29/08/1630/08/16

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