supported by the Key-Area Research and Development Program of Guangdong Province(No.2023B0909010002);the National Natural Science Foundation of China(Nos.62375087 and 12374304);the NSFC Development of National Major Scientific Research Instrument(No.61927816);the Introduced Innovative Team Project of Guangdong Pearl River Talents Program(No.2021ZT09Z109);the Natural Science Foundation of Guangdong Province(No.2021B1515020074)。
In this Letter,we propose a pixel-excitation-gating technology for high-sensitivity nonlinear imaging excited by femtosecond pulses at a GHz repetition rate,which can enhance the signal quality of nonlinear imaging.To...
In this Letter, temporal self-modifying behavior of amplitude modulation pulse propagation characteristics in multiphoton absorbers is presented by solving the underlying theoretical model coupling the propagation equ...
In this work we present experiments by focusing 42 femtosecond laser pulses in air using three differentfocal length lenses: f=100, 30 and 5 cm. For the longest focal length, only the filament, which is aweak plasma c...