Publications (6)
Investigation on the self-starting Mamyshev oscillator with low threshold
Wei Guo, Sihua Lu, Qiurun He +4
We have demonstrated a mode-locked Mamyshev oscillator based on a single-mode-fibre configuration with low threshould. The influences of spectral filters and the pump power on the…
Anisotropic Hot Carrier Relaxation and Coherent Phonon Dynamics in Type-II Weyl Semimetal TaIrTe4
Zheng Zhu, Jingwen Wang, Hao Yu +5
The unique energy band and crystal structure of the layered type-II Weyl semimetal TaIrTe4 hold great promise for high-performance broadband anisotropic optoelectronic devices. The…
Femtosecond Laser-induced Crystallization of Amorphous Sb2Te3 film and Coherent Phonon Spectroscopy Characterization and Optical Injection of Electron Spins
Simian Li, Huan Huang, Weiling Zhu +7
A femtosecond laser-irradiated crystallizing technique is tried to convert amorphous Sb2Te3 film into crystalline film. Sensitive coherent phonon spectroscopy (CPS) is used to moni…
Bulk vortices and half-vortex surface modes in parity-time-symmetric media
Huagang Li, Xing Zhu, Zhiwei Shi +3
We demonstrate that in-bulk vortex localized modes, and their surface half-vortex ("horseshoe") counterparts self-trap in two-dimensional (2D) nonlinear optical systems with $\math…
Surface solitons in PT symmetric potentials
Huagang Li, Zhiwei Shi, Xiujuan jiang +2
We investigate light beam propagation along the interface between linear and nonlinear media with parity-time PT symmetry, and derive an equation governing the beam propagation. A…
Measurement of Photocarrier Mean Free Path via Speckled Laser Pump -- Transient Fourier Microscopy Probe
Zuni Luo, Yifan Zhang, Jie Wei +3
The mean free path of photocarriers is a crucial parameter for material design, device optimization, and new optoelectronics applications. Currently, this parameter remains unknown…