Directional emission through dynamical tunneling in a deformed microcavity
Journal Article
·
· Physical Review. A
- Department of Physics and Astronomy, Seoul National University, Seoul 151-742 (Korea, Republic of)
We study directional emission through dynamical tunneling in a two-dimensional deformed microcavity. The tunneling emissions are characterized by free-space emergence with a finite distance {delta} from the cavity boundary. As the cavity deformation increases, it is shown numerically that one of two main outputs becomes dominant with a decreasing {delta} value. This asymmetrical enhancement of tunneling outputs can be understood by the influence of asymmetric short-time ray dynamics near the critical line on the dynamical tunneling process. In addition, the change of {delta} with deformation can be explained by the interference of tangential wave components brought by the dynamical tunneling.
- OSTI ID:
- 21537237
- Journal Information:
- Physical Review. A, Vol. 83, Issue 2; Other Information: DOI: 10.1103/PhysRevA.83.023827; (c) 2011 American Institute of Physics; ISSN 1050-2947
- Country of Publication:
- United States
- Language:
- English
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