Multimode analysis of highly tunable, quantum cascade powered, circular graphene spaser

Charith Kohomban Wickrama Jayasekara; Malin Premaratne; Mark Ilich Stockman; Sarath D Gunapala

doi:10.1063/1.4934859

Multimode analysis of highly tunable, quantum cascade powered, circular graphene spaser

Charith Kohomban Wickrama Jayasekara, Malin Premaratne, Mark Ilich Stockman, Sarath D Gunapala

Electrical and Computer Systems Engineering

Research output: Contribution to journal › Article › Research › peer-review

29 Citations (Scopus)

Abstract

We carried out a detailed analysis of a circular graphene spaser made of a circular graphene flake and a quantum cascade well structure. Owing to unique properties of graphene and quantum cascade well structure, the proposed design shows high mechanical and thermal stability and low optical losses. Additionally, operation characteristics of the model are analysed and tunability of the device is demonstrated. Some advantages of the proposed design include compact size, lower power operation, and the ability to set the operating wavelength over a wide range from Mid-IR to Near-IR. Thus, it can have wide spread applications including designing of ultracompact and ultrafast devices, nanoscopy and biomedical applications.

Original language	English
Article number	173101
Pages (from-to)	1 - 8
Number of pages	8
Journal	Journal of Applied Physics
Volume	118
Issue number	17
DOIs	https://doi.org/10.1063/1.4934859
Publication status	Published - 2015

Keywords

Graphene
Medical applications
Biomedical applications
Multimode analysis
Operating wavelength

Access to Document

10.1063/1.4934859

Cite this

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title = "Multimode analysis of highly tunable, quantum cascade powered, circular graphene spaser",

abstract = "We carried out a detailed analysis of a circular graphene spaser made of a circular graphene flake and a quantum cascade well structure. Owing to unique properties of graphene and quantum cascade well structure, the proposed design shows high mechanical and thermal stability and low optical losses. Additionally, operation characteristics of the model are analysed and tunability of the device is demonstrated. Some advantages of the proposed design include compact size, lower power operation, and the ability to set the operating wavelength over a wide range from Mid-IR to Near-IR. Thus, it can have wide spread applications including designing of ultracompact and ultrafast devices, nanoscopy and biomedical applications.",

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AU - Gunapala, Sarath D

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AB - We carried out a detailed analysis of a circular graphene spaser made of a circular graphene flake and a quantum cascade well structure. Owing to unique properties of graphene and quantum cascade well structure, the proposed design shows high mechanical and thermal stability and low optical losses. Additionally, operation characteristics of the model are analysed and tunability of the device is demonstrated. Some advantages of the proposed design include compact size, lower power operation, and the ability to set the operating wavelength over a wide range from Mid-IR to Near-IR. Thus, it can have wide spread applications including designing of ultracompact and ultrafast devices, nanoscopy and biomedical applications.

KW - Graphene

KW - Medical applications

KW - Biomedical applications

KW - Multimode analysis

KW - Operating wavelength

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