Abstract
This Letter reports a method to significantly improve the optical resolution of the anodic aluminum oxide (AAO) nanopore thin film sensor based on multi-cavity Fabry–Perot interference. The newly designed sensor is fabricated by bonding a layer of transparent polymer thin film (pTF), which is polydimethylsiloxane (PDMS), to a transparent AAO thin film to form a flexible pTF-nanopore sensor. In comparison with the AAO nanopore thin film sensor, the pTF-nanopore sensor shows a much-improved quality (Q) factor and optical resolution. Typical thicknesses of a PDMS layer and an AAO layer of the pTF-nanopore sensor are 80 μm and 2 μm, respectively. The pTF-nanopore sensor used for angle detection shows a sensitivity of 0.4 nm/deg with a resolution of 0.2 deg. The pTF-nanopore sensor can also be used for temperature monitoring with a sensitivity of 0.2 nm/°C and a resolution of 1°C.
© 2018 Optical Society of America
Full Article | PDF ArticleMore Like This
Omid R. Ranjbar-Naeini, Hamid Latifi, Mohammad I. Zibaii, and Ali Mousavian
Opt. Lett. 43(21) 5210-5213 (2018)
Feiru Wang, Yongjun Liu, Yuelan Lu, Lingli Zhang, Ji Ma, Lei Wang, and Weimin Sun
Opt. Lett. 43(21) 5355-5358 (2018)
Chao Song, Xiangchen Che, and Long Que
Opt. Express 25(16) 19391-19397 (2017)