title: Composite lattice pattern formation in a wide-aperture thin-slice solid-state laser with imperfect reflective ends.
abstract: We observed self-formations of multiple lasing channels and two-dimensional lasing patterns consisting of composite local modes having different lasing frequencies in a laser-diode-pumped wide-aperture thin-slice solid-state laser with imperfect reflective end surfaces. Global patterns resembling higher-order Hermite-Gaussian modes or possessing N-fold rotational symmetries were experimentally shown to appear due to the standard polished surface roughness of closely spaced reflective ends and nonlinear modal interactions.
authors.affiliation: Department of Human and Information Science, Tokai University, 1117 Kitakaname, Hiratsuka, Kanagawa 259-1292, Japan. ootsuka@keyaki.cc.tokai-u.ac.jp
authors.forename: Kenju
authors.initials: K
authors.lastname: Otsuka
authors.forename: Yoshihiko
authors.initials: Y
authors.lastname: Miyasaka
authors.forename: Tatsuro
authors.initials: T
authors.lastname: Narita
authors.forename: Shu-Chun
authors.initials: SC
authors.lastname: Chu
authors.forename: Chi-Ching
authors.initials: CC
authors.lastname: Lin
authors.forename: Jing-Yuan
authors.initials: JY
authors.lastname: Ko