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

Spaser and optical amplification conditions in graphene-coated active wires

Not Accessible

Your library or personal account may give you access

Abstract

This work analyzes the optical properties of a localized surface plasmon (LSP) spaser made of a dielectric active wire coated with a graphene monolayer. Our theoretical results, obtained by using rigorous electromagnetic methods, illustrate the non-radiative transfer between the active medium and the LSPs of graphene. In particular, we focus on the lasing conditions and the tunability of the LSP spaser in two cases: when the wire is made of an infrared/terahertz transparent dielectric material and when it is made of a metal-like material. We analyze the results by comparing them with analytical expressions obtained by using the quasistatic approximation. We show that the studied systems present a high tunability of the spaser resonances with the geometrical parameters as well as with the chemical potential of graphene.

© 2021 Optical Society of America

Full Article  |  PDF Article
More Like This
Terahertz lasing conditions of radiative and nonradiative propagating plasmon modes in graphene-coated cylinders

Leila Prelat, Nicolás Passarelli, Raúl Bustos-Marún, and Ricardo A. Depine
J. Opt. Soc. Am. B 39(9) 2547-2555 (2022)

Dispersion properties of plasmonic sub-wavelength elliptical wires wrapped with graphene

Mauro Cuevas and Ricardo A. Depine
J. Opt. Soc. Am. B 38(11) 3499-3508 (2021)

Lasing condition for trapped modes in subwavelength-wired PT-symmetric resonators

Mauro Cuevas, Mojtaba Karimi Habil, and Carlos J. Zapata-Rodríguez
Opt. Express 29(7) 10192-10208 (2021)

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

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

Figures (9)

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 (17)

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