Chaojie Ma

TL;DR: It is demonstrated for the first time that WS2 nanosheets exhibit ultrafast nonlinear saturable absorption property and high optical damage threshold, indicating that few-layer WS2 is a promising high-power flexible saturable absorber for ultrafast optics.

TL;DR: This work approximately generates perfect VVBs with locally linear and elliptical polarizations, and demonstrates that such beams can keep their intensity profile and SoP at a certain propagation distance.

TL;DR: This experiment demonstrates an interesting operation regime of mode-locked fiber laser, and shows that DF based MoS(2) SA can work as a promising high-power mode locker in ultrafast lasers.

TL;DR: In this article, a low-threshold soliton fiber laser passively mode locked with two different types of film-like saturable absorbers, one of which is fabricated by mixing Bi2Te3 with de-ionized water, as well as polyvinyl alcohol (PVA), and then evaporating them in a Petri dish, and the other of which was prepared by directly dropping Bi 2Te3 solution on the PVA film.

TL;DR: The experimental results of the laser-ablated pit, groove, and staircase specimens show the feasibility of the proposed configuration, which combines the dual-wavelength technique with lateral shearing interferometry with the advantages of vibration resistance and measurement range extension.