Abstract

This paper reports the design of a narrowband mid-infrared absorber using a structure consisting of low-index dielectric pillar arrays on a highly reflective metal plane. Such a hybrid system can support a high-quality lattice resonance with strongly confined electromagnetic fields at the tops of dielectric structures. For mid-infrared wavelengths around 4 µm, the low-index dielectric can be silica by plasma-enhanced chemical vapor deposition, and the metal can be copper. The lattice resonance can lead to perfect absorption with a quality factor around 1000 when considering realistic dissipative losses for the low-index dielectric pillars. According to Kirchhoff’s radiation law, the narrowband absorber can work as a high-$Q$ surface-emitting thermal emitter in the mid-infrared by heating its substrate.

© 2021 Optical Society of America

Full Article  |  PDF Article
More Like This
Gires-Tournois resonators as ultra-narrowband perfect absorbers for infrared spectroscopic devices

Anh Tung Doan, Thang Duy Dao, Satoshi Ishii, and Tadaaki Nagao
Opt. Express 27(12) A725-A737 (2019)

Taming parasitic thermal emission by Tamm plasmon polaritons for the mid-infrared

Gerald Pühringer and Bernhard Jakoby
J. Opt. Soc. Am. B 35(7) 1490-1503 (2018)

Ultra-narrowband near-infrared tunable two-dimensional perfect absorber for refractive index sensing

Xing Huang, Tao Wang, Ruoqin Yan, Xiaoyun Jiang, Xinzhao Yue, and Lu Wang
Appl. Opt. 60(14) 4113-4119 (2021)

References

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Data Availability

Data underlying the results presented in this paper are not publicly available at this time but may be obtained from the authors upon reasonable request.

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Figures (5)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Tables (1)

You do not have subscription access to this journal. Article tables are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Equations (1)

You do not have subscription access to this journal. Equations are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription