Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group

Terahertz active spatial filtering through optically tunable hyperbolic metamaterials

Not Accessible

Your library or personal account may give you access

Abstract

We theoretically consider infrared-driven hyperbolic metamaterials able to spatially filter terahertz (THz) radiation. The metamaterial is a slab made of alternating semiconductor and dielectric layers whose homogenized uniaxial response, at THz frequencies, shows principal permittivities of different signs. The gap provided by metamaterial hyperbolic dispersion allows the slab to stop spatial frequencies within a bandwidth tunable by changing the infrared radiation intensity. We numerically prove the device functionality by resorting to full wave simulation coupled to the dynamics of charge carries photoexcited by infrared radiation in semiconductor layers.

© 2012 Optical Society of America

Full Article  |  PDF Article
More Like This
Terahertz optically tunable dielectric metamaterials without microfabrication

Carlo Rizza, Alessandro Ciattoni, Lorenzo Columbo, Massimo Brambilla, and Franco Prati
Opt. Lett. 38(8) 1307-1309 (2013)

Tunable terahertz amplification based on photoexcited active graphene hyperbolic metamaterials [Invited]

Tianjing Guo, Liang Zhu, Pai-Yen Chen, and Christos Argyropoulos
Opt. Mater. Express 8(12) 3941-3952 (2018)

Tunable spectral and spatial filters for the mid-infrared based on hyperbolic metamaterials

Marcin Kieliszczyk, Bartosz Janaszek, Anna Tyszka-Zawadzka, and Paweł Szczepański
Appl. Opt. 57(5) 1182-1187 (2018)

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 Optica member, or as an authorized user of your institution.

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

Figures (4)

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

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

Equations (4)

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

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

Select as filters


Select Topics Cancel
© Copyright 2024 | Optica Publishing Group. All Rights Reserved