[16a-S2_204-1~10] CS.2 Code-sharing Session of 3.8 & 3.11

9:15 AM - 9:30 AM JST(12:15 AM - 12:30 AM UTC)

[16a-S2_204-1] Broadband Infrared Unidirectional Absorption enabled by Non-Hermitian Structure

〇Ayaha Yamamoto¹, Ganbat Batorgil¹, Wakana Kubo¹ (1.Tokyo Univ. of Agri. and Tech.)

Keywords:

Non-Hermitian,Unidirectionality

This study aimed to achieve broadband unidirectional absorption in the infrared region using a non-Hermitian structure composed of low- and high-loss materials. A four-layer structure consisting of Bi and CaF₂ was optimized using the transfer matrix method, yielding high absorption for forward incidence and low absorption for backward incidence. Power spectrum analysis confirmed the unidirectionality based on non-Hermitian properties, demonstrating its potential application as a thermal shielding material.