48 citations · 171 across the 10 of their papers we have counts for
11 papers
An Exciton-Polariton Fano Resonance Driven by Second Harmonic Generation
Yafeng Wang, Liming Liao, Tao Hu +9
Angle-resolved second harmonic generation (SHG) spectra of ZnO microwires show characteristic Fano resonances in the spectral vicinity of exciton-polariton modes. The output SHG sp…
Optical Spin Polarization Dynamics in GaSe Nanoslabs
Yanhao Tang, Wei Xie, Krishna C. Mandal +2
We report nearly complete preservation of "spin memory" between optical absorption and photoluminescence (PL) in nanometer slabs of GaSe pumped with up to 0.2 eV excess energy. At…
Exciton spin dynamics in GaSe
Yanhao Tang, Wei Xie, Krishna C. Mandal +2
We analyze exciton spin dynamics in GaSe under nonresonant circularly polarized optical pumping with an exciton spin-flip rate-equation model. The model reproduces polarized time-d…
Transient dual-energy lasing in a semiconductor microcavity
Feng-Kuo Hsu, Wei Xie, Yi-Shan Lee +2
We demonstrate sequential lasing at two well-separated energies in a highly photoexcited planar microcavity at room temperature. Two spatially overlapped lasing states with distinc…
Linearly polarized remote-edge luminescence in GaSe nanoslabs
Yanhao Tang, Wei Xie, Krishna C. Mandal +2
We report highly linearly polarized remote luminescence that emerges at the cleaved edges of nanoscale gallium selenide slabs tens of micrometers away from the optical excitation s…
Multiple-pulse lasing from an optically induced harmonic confinement in a highly photoexcited microcavity
Wei Xie, Feng-Kuo Hsu, Yi-Shan Lee +2
We report the observation of macroscopic harmonic states in an optically induced confinement in a highly photoexcited semiconductor microcavity at room temperature. The spatially p…
Spin-polarized lasing in a highly photoexcited semiconductor microcavity
Feng-kuo Hsu, Wei Xie, Yi-Shan Lee +2
We demonstrate room-temperature spin-polarized ultrafast (10 ps) lasing in a highly optically excited GaAs microcavity. This microcavity is embedded with InGaAs multiple quan…
Near Unity Optical Spin Polarization in GaSe Nanoslabs
Yanhao Tang, Wei Xie, Krishna C. Mandal +2
We report nearly complete preservation of "spin memory" between optical absorption and photoluminescence (PL) in nanometer slabs of GaSe pumped with 0.2 eV excess energy. At cryoge…
Spin Selective Purcell Effect in a Quantum Dot Microcavity System
Qijun Ren, Jian Lu, H. H. Tan +9
We demonstrate the selective coupling of a single quantum dot exciton spin state with the cavity mode in a quantum dot-micropillar cavity system. By tuning an external magnetic fie…
Room temperature one-dimensional polariton condensate in a ZnO microwire
Liaoxin Sun, Shulin Sun, Hongxing Dong +6
A cavity-polariton, formed due to the strong coupling between exciton and cavity mode, is one of the most promising composite bosons for realizing macroscopic spontaneous coherence…
One-dimensional ZnO exciton polaritons with negligible thermal broadening at room temperature
Aurélien Trichet, Liaoxin Sun, Goran Pavlovic +6
Phonon damping is the main source of pure dephasing in the solid state, limiting many fundamental quantum effects to low temperature observations. Here we show how excitons in semi…