668 citations · 2.2k across the 24 of their papers we have counts for
5 papers · 1 filter
Pump-Controlled Modal Interactions in Microdisk Lasers
Seng Fatt Liew, Li Ge, Brandon Redding +2
We demonstrate an effective control of nonlinear interactions of lasing modes in a semiconductor microdisk cavity by shaping the pump profile. A target mode is selected at the expe…
Topological defect lasers
Sebastian Knitter, Seng Fatt Liew, Wen Xiong +3
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 sp…
Photonic crystals with topological defects
Seng Fatt Liew, Sebastian Knitter, Wen Xiong +1
We introduce topological defect to a square lattice of elliptical cylinders. Despite the broken translational symmetry, the long-range positional order of the cylinders leads to re…
Active control of emission directionality of semiconductor microdisk lasers
Seng Fatt Liew, Brandon Redding, Li Ge +2
We demonstrate lasing mode selection in nearly circular semiconductor microdisks by shaping the spatial profile of optical pump. Despite of strong mode overlap, adaptive pumping su…
Transmission channels for light in absorbing random media: from diffusive to ballistic-like transport
Seng Fatt Liew, Sebastien M. Popoff, Allard P. Mosk +2
While the absorption of light is ubiquitous in nature and in applications, the question remains how absorption modifies the transmission channels in random media. We present a nume…