title: Observation of Q-spoiling ef fects on the resonance modes from a noncircularly deformed liquid jet.
abstract: Spectral changes in fluorescence and lasing spectra were observed from a noncircularly deformed ink-doped ethanol jet, which was induced by a lateral gas flow. The distortion parameter was determined from the analysis of diffraction patterns to be as much as ~10%. Q -spoiling effects were clearly observed in the appearance of high- Q (~10(7)) modes in fluorescence and their disappearance in lasing. From the behavior of resonance modes, we concluded that the effective Q does not decrease so rapidly as predicted by the relation obtained from the ray-optics model. We also found that the signals leak out, with a wide angular spreading, mainly from near the boundary of the major axis, even for a large distortion parameter.
authors.forename: H J
authors.initials: HJ
authors.lastname: Moon
authors.forename: K H
authors.initials: KH
authors.lastname: Ko
authors.forename: Y C
authors.initials: YC
authors.lastname: Noh
authors.forename: G H
authors.initials: GH
authors.lastname: Kim
authors.forename: J H
authors.initials: JH
authors.lastname: Lee
authors.forename: J S
authors.initials: JS
authors.lastname: Chang