Continuous-wave lasing between Landau levels in graphene

Yongrui Wang; Mikhail Tokman; Alexey Belyanin

doi:10.1103/PhysRevA.91.033821

Continuous-wave lasing between Landau levels in graphene

Yongrui Wang, Mikhail Tokman, Alexey Belyanin

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

Abstract

We predict the general feasibility and demonstrate the design of the continuous-wave terahertz laser operating between Landau levels in graphene placed on a polar substrate in a magnetic field of order 1 T. Steady-state population inversion under a continuous-wave optical pumping becomes possible due to surface-phonon-mediated relaxation of carriers. The scheme is scalable to other materials with massless Dirac fermions, for example, surface states in three-dimensional topological insulators such as Bi2Se3 or Bi2Te3.

Original language	English
Article number	033821
Journal	Physical Review A - Atomic, Molecular, and Optical Physics
Volume	91
Issue number	3
DOIs	https://doi.org/10.1103/PhysRevA.91.033821
State	Published - 17 Mar 2015
Externally published	Yes

All Science Journal Classification (ASJC) codes

Atomic and Molecular Physics, and Optics

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10.1103/PhysRevA.91.033821

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AB - We predict the general feasibility and demonstrate the design of the continuous-wave terahertz laser operating between Landau levels in graphene placed on a polar substrate in a magnetic field of order 1 T. Steady-state population inversion under a continuous-wave optical pumping becomes possible due to surface-phonon-mediated relaxation of carriers. The scheme is scalable to other materials with massless Dirac fermions, for example, surface states in three-dimensional topological insulators such as Bi2Se3 or Bi2Te3.

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Continuous-wave lasing between Landau levels in graphene

Abstract

All Science Journal Classification (ASJC) codes

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