Design and analysis of the reconfigurable plasmonic absorbers based on hexagonal periodic gratings

Israel Alves Oliveira; I. L. Gomes de Souza; V. F. Rodriguez-Esquerre

doi:10.1117/12.2612174

4 March 2022 Design and analysis of the reconfigurable plasmonic absorbers based on hexagonal periodic gratings

Israel Alves Oliveira, I. L. Gomes de Souza, V. F. Rodriguez-Esquerre

Proceedings Volume 11997, Optical Components and Materials XIX; 1199703 (2022) https://doi.org/10.1117/12.2612174
Event: SPIE OPTO, 2022, San Francisco, California, United States

Abstract

In this work, we propose a plasmonic absorber structure composed of periodic gratings with hexagonal arrangements aided by rectangular metal-dielectric layers and PCM's (Phase Change Materials) in the infrared spectrum, between 1200-6000 nm, which has high optical contrast in these regions, thus favoring its use. The transition effects between the intermediate to amorphous and crystalline phases of the PCMs layers are analyzed, based on the LorentzLorenz relationship. Absorption effects can be controlled using functions in which geometric parameters and crystallization levels can be related. The results presented show high absorption above 95% in both phases of the material, in normal incidence. The physical mechanisms of absorption confinement were also investigated. These structures can offer great light coupling advantage in reconfigurable nanoplasmonic devices.

Conference Presentation

Citation Download Citation

Israel Alves Oliveira, I. L. Gomes de Souza, and V. F. Rodriguez-Esquerre "Design and analysis of the reconfigurable plasmonic absorbers based on hexagonal periodic gratings", Proc. SPIE 11997, Optical Components and Materials XIX, 1199703 (4 March 2022); https://doi.org/10.1117/12.2612174

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available