Abstract
The underlying physics and detailed dynamical process
of the free space beam excitation to the asymmetric resonant microcavity are
studied numerically. Taking the well-studied quadrupole deformed microcavity
as an example, we use a Gaussian beam to excite the high-Q mode. The simulation
provides a powerful platform to study the underlying physics. The transmission
spectrum and intracavity energy can be obtained directly. Unique transmission
spectrums were observed, which show the asymmetric Fano-type lineshapes as
a result of the interference between the different light paths. Then excitation
efficiencies varying with the aiming distance of the incident Gaussian beam
and the rotation angle of the cavity were studied, which is greatly consistent
with the reversal of emission efficiencies. By projecting the position-dependent
excitation efficiency to the phase space, the correspondence between the excitation
and emission was demonstrated. In addition, we compared the Husimi distributions
of the excitation processes and provided more direct evidences of the dynamical
tunneling process in the excitation process.
© 2013 IEEE
PDF Article
More Like This
Cited By
You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.
Contact your librarian or system administrator
or
Login to access Optica Member Subscription
Add to BibSonomy