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

Journal Article · Sat Nov 07 00:00:00 EST 2015 · Journal of Applied Physics

DOI:https://doi.org/10.1063/1.4934859· OSTI ID:22492882

Jayasekara, Charith; Premaratne, Malin ^[1]; Stockman, Mark I. ^[2]; Gunapala, Sarath D. ^[3]

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1. Advanced Computing and Simulation Laboratory (A chi L), Department of Electrical and Computer Systems Engineering, Monash University, Clayton, Victoria 3800 (Australia)
2. Department of Physics and Astronomy, Georgia State University, Atlanta, Georgia 30303 (United States)
3. Jet Propulsion Laboratory, California Institute of Technology, Pasadena, California 91109 (United States)

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.

• OSTI ID: 22492882
• Journal Information: Journal of Applied Physics, Vol. 118, Issue 17; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0021-8979
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
DESIGN
GRAPHENE
LOSSES
OPERATION
STABILITY
WAVELENGTHS