Femtosecond laser ionization and fragmentation of molecules for environmental sensing
H Xu, Y Cheng, SL Chin, HB Sun - Laser & photonics reviews, 2015 - Wiley Online Library
Recent studies have demonstrated that femtosecond laser pulses have high potential in
application to environmental science. Because of the properties of ultrafast, broadband and …
application to environmental science. Because of the properties of ultrafast, broadband and …
[HTML][HTML] Femtosecond laser filamentation for atmospheric sensing
HL Xu, SL Chin - Sensors, 2010 - mdpi.com
Powerful femtosecond laser pulses propagating in transparent materials result in the
formation of self-guided structures called filaments. Such filamentation in air can be …
formation of self-guided structures called filaments. Such filamentation in air can be …
Multipass spectral broadening of 18 mJ pulses compressible from 1.3 ps to 41 fs
M Kaumanns, V Pervak, D Kormin, V Leshchenko… - Optics letters, 2018 - opg.optica.org
Nonlinear compression of laser pulses with tens of millijoule energy in a gas-filled multipass
cell is a promising approach to realize a new generation of high average power …
cell is a promising approach to realize a new generation of high average power …
Measurement of pressure dependent nonlinear refractive index of inert gases
Á Börzsönyi, Z Heiner, AP Kovács, MP Kalashnikov… - Optics …, 2010 - opg.optica.org
The propagation of high intensity laser beams is excessively affected by optical nonlinear
effects, thereby the knowledge of the nonlinear refractive indices of the beam guiding media …
effects, thereby the knowledge of the nonlinear refractive indices of the beam guiding media …
Experimentally determined critical power for self-focusing of femtosecond vortex beams in air by a fluorescence measurement
W Liang, D Li, J Chang, T Xi, L Ji, D Li, L Zhang… - Optics …, 2023 - opg.optica.org
The filamentation of the femtosecond vortex beam has attracted much attention because of
the unique filamentation characteristics, such as annular distribution and helical …
the unique filamentation characteristics, such as annular distribution and helical …
Distinguishing the nonlinear propagation regimes of vortex femtosecond pulses in fused silica by evaluating the broadened spectrum
D Li, W Liang, D Li, L Ji, B Yan, J Chang, T Xi… - Optics …, 2023 - opg.optica.org
The nonlinear propagation dynamics of vortex femtosecond laser pulses in optical media is
a topic with significant importance in various fields, such as nonlinear optics …
a topic with significant importance in various fields, such as nonlinear optics …
Critical power and clamping intensity inside a filament in a flame
H Li, W Chu, H Zang, H Xu, Y Cheng, SL Chin - Optics Express, 2016 - opg.optica.org
We report on measurements of both the critical power for self-focusing of a Ti: Sapphire 800
nm femtosecond laser and the peak intensity clamped inside a single filament in an ethanol …
nm femtosecond laser and the peak intensity clamped inside a single filament in an ethanol …
Highly enhanced terahertz conversion by two-color laser filamentation at low gas pressures
We present an experimental study on pressure-dependent terahertz generation from two-
color femtosecond laser filamentation in various gases. Contrary to short-focusing geometry …
color femtosecond laser filamentation in various gases. Contrary to short-focusing geometry …
Isolated broadband attosecond pulse generation with near-and mid-infrared driver pulses via time-gated phase matching
We present a theoretical analysis of the time-gated phase matching (ionization gating)
mechanism in high-order harmonic generation for the isolation of attosecond pulses at near …
mechanism in high-order harmonic generation for the isolation of attosecond pulses at near …
[HTML][HTML] Exploring the femtosecond filamentation threshold in liquid media using a Mach–Zehnder interferometer
Y Zhang, Y Xia, C Liang, A Chen, S Li, M Jin - Sensors, 2023 - mdpi.com
We experimentally studied the supercontinuum induced by femtosecond filamentation in
different liquid media. Using a Mach–Zehnder interferometer, we determined the relative …
different liquid media. Using a Mach–Zehnder interferometer, we determined the relative …