標題: Applications of Tamm plasmon-liquid crystal devices
作者: Jeng, Shie-Chang
影像與生醫光電研究所
Institute of Imaging and Biomedical Photonics
關鍵字: Tamm-plasmon-polariton;tunable plasmonic devices;liquid crystal alignment;anisotropic films
公開日期: 20-六月-2020
摘要: The Tamm-plasmon-polariton (TPP) occurs at the interface between a metallic film and the photonic-crystal (PC) substrate. Unlike conventional surface-plasmon-polariton (SPP), TPP can be directly excited by both the transverse electric (TE) and transverse magnetic (TM) electromagnetic waves without using additional coupling optics. The fact that the optical functionality of most plasmonics devices is determined after fabrication limits their applications. Tunable SPP devices by applying liquid crystals (LCs) have been widely demonstrated due to their large birefringence and easy controllability via external stimuli. However, actively tuning TPP is difficult because the localised electric field is between the metallic film and PC substrate, the change of refractive index above the metallic film has only small influences on TPP. This article is intended to briefly review recent progress towards using LCs for actively tuning TPP devices. Not only TPP devices can gain benefits from LCs, we will also discuss the applications of TPP for measuring the anisotropy of the alignment films of LC devices. The sensitivity of the proposed scheme will be discussed.
URI: http://dx.doi.org/10.1080/02678292.2020.1733114
http://hdl.handle.net/11536/155111
ISSN: 0267-8292
DOI: 10.1080/02678292.2020.1733114
期刊: LIQUID CRYSTALS
Volume: 47
Issue: 8
起始頁: 1223
結束頁: 1231
顯示於類別:期刊論文