Back to Search Start Over

Excitation and Tuning of Optical Tamm States in a Hybrid Structure with a Metal Film Adjacent to a Four-Layer Polymer–Liquid Crystal Stack

Authors :
Victor Y. Reshetnyak
Igor P. Pinkevych
Timothy J. Bunning
Dean R. Evans
Source :
Photonics, Vol 11, Iss 3, p 278 (2024)
Publication Year :
2024
Publisher :
MDPI AG, 2024.

Abstract

Absorption, reflection, and transmission coefficients of the hybrid structure formed by a metal film and a holographic polymer–liquid crystal grating (HPLCG) are theoretically studied in the spectral region of the HPLCG band gap. HPLCG cells consist of four alternating layers, two layers of polymer and two layers of the same liquid crystal (LC), but with different orientations of the LC director. The appearance of reflection, transmission, and absorption peaks in the HPLCG band gap due to the excitation of optical Tamm states (OTSs) at the metal film–HPLCG interface is investigated. The dependence of the spectral manifestation of OTSs on the parameters of the hybrid structure is also studied. A comparison is made with the corresponding results for the case when HPLCG cells of a hybrid structure consist of one polymer layer and one LC layer (two-layer HPLCG).

Details

Language :
English
ISSN :
23046732
Volume :
11
Issue :
3
Database :
Directory of Open Access Journals
Journal :
Photonics
Publication Type :
Academic Journal
Accession number :
edsdoj.29a3cbf9a5a3465e940eb76128b6f68e
Document Type :
article
Full Text :
https://doi.org/10.3390/photonics11030278