title: Nonlinear localized modes in bandgap microcavities.
abstract: We study experimentally an electrically pumped GaAs-based bandgap structure based on a vertical cavity surface emitting laser (VCSEL). We demonstrate that a microcavity embedded into this bandgap VCSEL structure supports localized optical modes without any holding beam. We propose a model of surface-structured VCSELs based on a reduced dissipative wave equation for describing electromagnetic modes in such semiconductor cavities and analyze a crossover between linear and nonlinear solitonlike cavity modes.
authors.affiliation: Department of Physics, Southeast University, Nanjing 210096, China. wenxingyang2@126.com
authors.forename: Wen-Xing
authors.initials: WX
authors.lastname: Yang
authors.forename: Yuan-Yao
authors.initials: YY
authors.lastname: Lin
authors.forename: Tsin-Dong
authors.initials: TD
authors.lastname: Lee
authors.forename: Ray-Kuang
authors.initials: RK
authors.lastname: Lee
authors.forename: Yuri S
authors.initials: YS
authors.lastname: Kivshar