Omnidirectional and compact Tamm phonon-polaritons enhanced mid-infrared absorber

作     者：Xiaomin Hua Gaige Zheng Fenglin Xian Dongdong Xu Shengyao Wang 花小敏;郑改革;咸冯林;徐董董;王升耀

作者机构：Jiangsu Key Laboratory for Optoelectronic Detection of Atmosphere and OceanSchool of Physics and Optoelectronic EngineeringNanjing University of Information Science and TechnologyNanjing 210044China Jiangsu Collaborative Innovation Center on Atmospheric Environment and Equipment Technology(CICAEET)Nanjing University of Information Science and TechnologyNanjing 210044China 

出 版 物：《Chinese Physics B》 (中国物理B（英文版）)

年 卷 期：2021年第30卷第8期

页      面：360-363页

核心收录：

学科分类：080901[工学-物理电子学] 0809[工学-电子科学与技术（可授工学、理学学位）] 08[工学] 080401[工学-精密仪器及机械] 0804[工学-仪器科学与技术] 0803[工学-光学工程] 

基　　金：Project supported by the National Natural Science Foundation of Jiangsu Province China(Grant Nos.BK20191396 BK20180784) 

主　　题：perfect absorption surface phonon polaritons mid-infrared distributed Bragg reflector 

摘      要：Narrow band mid-infrared(MIR)absorption is highly desired in thermal emitter and sensing *** theoretically demonstrate that the perfect absorption at infrared frequencies can be achieved and controlled around the surface phonon resonance frequency of silicon carbide(SiC).The photonic heterostructure is composed of a distributed Bragg reflector(DBR)/germanium(Ge)cavity/SiC on top of a Ge ***-wave simulation results illustrate that the Tamm phonon-polaritons electric field can locally concentrate between the Ge cavity and the SiC film,contributed to the improved light-phonon interactions with an enhancement of light *** structure has planar geometry and does not require nano-patterning to achieve perfect absorption of both polarizations of the incident light in a wide range of incident *** absorption lines are tunable via engineering of the photon band-structure of the dielectric photonic nanostructures to achieve reversal of the geometrical phase across the interface with the plasmonic absorber.