Share Email Print

Proceedings Paper

Dynamically tunable perfect absorbers based on periodic microstructures
Format Member Price Non-Member Price
PDF $17.00 $21.00

Paper Abstract

Arising from condensed-matter excitations, epsilon-near-zero (ENZ) modes are a new path for enhancing light-matter interactions at nanoscale with their unique and interesting optical properties when probed at wavelengths corresponding to their zero permittivity crossing points. In this work, a highly efficient tunable absorber can be achieved by integrating an ultra-thin indium tin oxide (ITO) film into the periodically patterned metal-insulator-metal (MIM) structure. Particularly strong absorption modulation could be achieved when the ITO is operated in the ENZ spectral range. This work can make a significant contribution to direct application in a range of optoelectronic devices that require active control over light absorption and energy conversion.

Paper Details

Date Published: 18 November 2019
PDF: 6 pages
Proc. SPIE 11194, Plasmonics IV, 111940R (18 November 2019); doi: 10.1117/12.2537790
Show Author Affiliations
Peng Zhou, Nanjing Univ. of Information Science & Technology (China)
Gaige Zheng, Nanjing Univ. of Information Science & Technology (China)
Xiujuan Zou, Nanjing Univ. (China)

Published in SPIE Proceedings Vol. 11194:
Plasmonics IV
Hongxing Xu; Satoshi Kawata; Min Qiu, Editor(s)

© SPIE. Terms of Use
Back to Top
Sign in to read the full article
Create a free SPIE account to get access to
premium articles and original research
Forgot your username?