Title :
Topological defect lasers
Author :
Knitter, Sebastian ; Liew, Seng Fatt ; Wen Xiong ; Guy, Mikhael I. ; Solomon, Glenn S. ; Hui Cao
Author_Institution :
Dept. of Appl. Phys., Yale Univ., New Haven, CT, USA
Abstract :
We demonstrate topological defect lasers in a GaAs membrane with embedded InAs quantum dots. By introducing a disclination to a square-lattice of elliptical air holes, we obtain spatially confined lasing modes that support powerflow vortices.
Keywords :
III-V semiconductors; disclinations; gallium arsenide; indium compounds; laser beam effects; laser modes; optical vortices; photonic crystals; semiconductor quantum dots; GaAs; GaAs membrane; InAs; disclination; elliptical air holes; embedded InAs quantum dots; powerflow vortices; spatially confined lasing modes; topological defect lasers; Gallium arsenide; Lattices; Optical device fabrication; Optical imaging; Optical pumping; Optical vortices;
Conference_Titel :
Lasers and Electro-Optics (CLEO), 2015 Conference on
Conference_Location :
San Jose, CA
