skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Directional emission through dynamical tunneling in a deformed microcavity

Journal Article · · Physical Review. A
;  [1]
  1. 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