title: Strongly enhanced mode selection in a thin dielectric-coated layered microcavity laser.
abstract: Strong mode selection through an enhanced interferential coupling effect was observed in a thin dielectric-coated layered cylindrical microcavity laser. The strong coupling effect was induced owing to an enhanced reflectivity of around 50% at the dielectric-coated inner boundary of a fused silica capillary filled with a dye-doped liquid. At an optimized coating thickness of about 0.4 microm, the lasing peaks appeared only at the wavelengths corresponding to the constructive interference condition, whereas those from a bare capillary were weakly modulated.
authors.affiliation: Department of Optical Engineering, Sejong University, Seoul, Korea. hjmoon@sejong.ac.kr
authors.forename: Hee-Jong
authors.initials: HJ
authors.lastname: Moon
authors.forename: Dong-Yun
authors.initials: DY
authors.lastname: Kang