Abstract
It is demonstrated theoretically and experimentally that a one-dimensional photonic crystal (1D-PC) made of quarter waves stacked on top of a prism exhibits both TE and TM resonances that coincide with the critical angle when the 1D-PC is semi-infinite and with very little deviation from for a finite 1D-PC. As a refractive index (RI) sensor, it behaves as a total internal reflection sensor at with the advantage of detecting a narrow dip rather than an edge and enhanced figure of merit by increasing the number of periods in the 1D-PC. Using the diverging beam approach on an optical bench, a two channel sensor is demonstrated with a sensitivity of 120.9 deg/RIU and a detection limit of .
© 2015 Optical Society of America
Full Article | PDF ArticleMore Like This
Yong-Xiang Jiang, Bing-Hong Liu, Xiao-Song Zhu, Xiao-Li Tang, and Yi-Wei Shi
Opt. Lett. 40(5) 744-747 (2015)
Zongda Zhu, Lu Liu, Zhihai Liu, Yu Zhang, and Yaxun Zhang
Opt. Lett. 42(15) 2948-2951 (2017)
Treesukon Treebupachatsakul, Apivitch Boosamalee, Kamejira Chaithatwanitch, and Suejit Pechprasarn
Biomed. Opt. Express 13(4) 1784-1800 (2022)