title: Whispering gallery modes formed by partial barriers in ultrasmall deformed microdisks.
abstract: Unexpected formation of regular high-Q whispering gallery modes in a deformed microdisk where the radius is of the order of the vacuum wavelength is explained in terms of partial barriers in phase space. Using a semiclassical approach to determine the action flux of the partial barriers, we successfully predict spectral ranges in which the high-Q modes can exist. Our analysis enables optimization of emission directionality and the Q factor of deformed ultrasmall microcavities.
authors: Institut für Theoretische Physik, Otto-von-Guericke-Universität Magdeburg, D-39016 Magdeburg, Germany.
authors: Jeong-Bo
authors: JB
authors: Shim
authors: Jan
authors: J
authors: Wiersig
authors: Hui
authors: H
authors: Cao