Zobrazeno 1 - 10
of 144
pro vyhledávání: '"Zuoqiang Hao"'
Publikováno v:
Scientific Reports, Vol 14, Iss 1, Pp 1-7 (2024)
Abstract We perform numerical simulations to investigate the nonlinear propagation dynamics of femtosecond Gaussian and vortex beams in fused silica. By analyzing the extent of spectral broadening, we are able to distinguish between the linear, self-
Externí odkaz:
https://doaj.org/article/847546983a8b4e78a5692baa57f94133
Autor:
Huiting Song, Zuoqiang Hao, Bingxin Yan, Faqian Liu, Dongwei Li, Junwei Chang, Yangjian Cai, Lanzhi Zhang
Publikováno v:
Photonics, Vol 11, Iss 1, p 66 (2024)
The filamentation of femtosecond pulses has attracted significant attention, owing to its unique characteristics and related applications. The self-focusing critical power of femtosecond pulses is one of the key parameters in the filamentation proces
Externí odkaz:
https://doaj.org/article/e358e29899ec4542b77a1d4899419ded
Publikováno v:
New Journal of Physics, Vol 25, Iss 8, p 083023 (2023)
Optical self-healing is a repairing phenomenon of a beam in the propagation, as it is perturbed by an opaque object. In this work, we demonstrate experimentally and theoretically that the moiré distributed dual-microlens array enables to generate op
Externí odkaz:
https://doaj.org/article/0b618321939e4a1090cedd38c87c8656
Publikováno v:
Results in Physics, Vol 29, Iss , Pp 104782- (2021)
A high-speed continuous imaging system is established based on the principle of multiwavelength shadow imaging with a 15-ns exposure time and 1-ns frame interval. Furthermore, the spatiotemporal evolution of phase explosion products induced by Nd: YA
Externí odkaz:
https://doaj.org/article/f5e5b1b84d0048e1a593a45218779947
Publikováno v:
Results in Physics, Vol 26, Iss , Pp 104334- (2021)
When the peak power exceeds many times the critical power of self-focusing, femtosecond vortex beams will break up into multiple filaments with random distribution because of the initial random noise, which is adverse to the applications. By numerica
Externí odkaz:
https://doaj.org/article/498d8c2e649e4c799a2390105b4325f6
Publikováno v:
Results in Physics, Vol 19, Iss , Pp 103601- (2020)
We report on the observation of dual-pulses laser-produced plasmas (DP-LPPs), following a femtosecond Ti: sapphire pulse laser ablate soil generated a substantial number of soil aerosol particle clusters of soil target and then a nanosecond Nd:YAG pu
Externí odkaz:
https://doaj.org/article/2e7ff78d9b0f4f77bbe91f896c2bc3e3
Publikováno v:
Photonics, Vol 8, Iss 8, p 339 (2021)
We investigate experimentally the local intensity control in the visible region of the supercontinuum (SC) generated from femtosecond laser filamentation in fused silica by using pulse shaping technology. Based on the genetic algorithm, we show that
Externí odkaz:
https://doaj.org/article/960f21b950bb413aa101a477d64656f4
Publikováno v:
New Journal of Physics, Vol 20, Iss 7, p 073031 (2018)
We experimentally demonstrate comprehensive reveal of the ultrafast plasmonic field distribution in a bowtie nanostructure by two-color photoemission electron microscopy (PEEM). We attribute the comprehensive reveal of the field distribution to an ef
Externí odkaz:
https://doaj.org/article/bdf39dc916d94fb7b54577876923857e
Publikováno v:
New Journal of Physics, Vol 18, Iss 9, p 093046 (2016)
We demonstrate subwavelength imaging and control of localized near-field distribution under resonant and off-resonant excitation of identical gold bowtie nanostructures through photoemission electron microscopy. Control of the near-field distribution
Externí odkaz:
https://doaj.org/article/6192f6e3151a46bd808a518b531de783
Publikováno v:
Optics & Laser Technology. 164:109515