title: Lasing of TM modes in a two-dimensional GaAs microlaser.
abstract: We fabricated and tested an unstrained GaAs single-quantum-well microlaser which has a two-dimensional cavity shape known as the Penrose unilluminable room. The cavity exhibits quasi-one-dimensional modes, namely axial, diamond-shaped, and V-shaped modes. In contrast to previous observations of TE-polarized emission in GaAs microlasers, we observed TM-polarized emission. We explain this observation as being the result of lasing of the diamond-shaped modes whose incident angle at the cavity interface is very close to the Brewster angle.
authors.forename: Takehiro
authors.initials: T
authors.lastname: Fukushima
authors.forename: Susumu
authors.initials: S
authors.lastname: Shinohara
authors.forename: Satoshi
authors.initials: S
authors.lastname: Sunada
authors.forename: Takahisa
authors.initials: T
authors.lastname: Harayama
authors.forename: Koichiro
authors.initials: K
authors.lastname: Sakaguchi
authors.forename: Yasunori
authors.initials: Y
authors.lastname: Tokuda