Results 31 to 40 of about 127,900 (289)

The Acoustic Characteristic Investigation of Micro Plasma Shock Wave Obtained by Femtosecond Laser Ablation of Silicon Wafer Surface

MATEC Web of Conferences, 2016
We experimentally investigate the acoustic characteristic of micro plasma shock wave obtained by femtosecond laser ablation of silicon wafer surface using F-P optical fiber acoustic sensor with anti electromagnetic interference.
Zhong Dong, Li Zhong Ming, Chen Chun, Ruan Ruo Lin   +3 more
doaj   +1 more source

X-ray free electron laser observation of ultrafast lattice behaviour under femtosecond laser-driven shock compression in iron

Scientific Reports, 2023
Over the past century, understanding the nature of shock compression of condensed matter has been a major topic. About 20 years ago, a femtosecond laser emerged as a new shock-driver. Unlike conventional shock waves, a femtosecond laser-driven shock wave
Tomokazu Sano, Tomoki Matsuda, Akio Hirose, Mitsuru Ohata, Tomoyuki Terai, Tomoyuki Kakeshita, Yuichi Inubushi, Takahiro Sato, Kohei Miyanishi, Makina Yabashi, Tadashi Togashi, Kensuke Tono, Osami Sakata, Yoshinori Tange, Kazuto Arakawa, Yusuke Ito, Takuo Okuchi, Tomoko Sato, Toshimori Sekine, Tsutomu Mashimo, Nobuhiko Nakanii, Yusuke Seto, Masaya Shigeta, Takahisa Shobu, Yuji Sano, Tomonao Hosokai, Takeshi Matsuoka, Toshinori Yabuuchi, Kazuo A. Tanaka, Norimasa Ozaki, Ryosuke Kodama   +30 more
doaj   +1 more source

Response of graphene to femtosecond high-intensity laser irradiation

, 2011
We study the response of graphene to high-intensity 10^11-10^12 Wcm^-2, 50-femtosecond laser pulse excitation. We establish that graphene has a fairly high (~3\times10^12Wcm^-2) single-shot damage threshold.
Cormode, Daniel, LeRoy, Brian J., Newhouse-Illige, Ty, Reynolds, Collin, Roberts, Adam, Sandhu, Arvinder S.   +5 more
core   +1 more source

Improved Femtosecond Laser-Assisted Phacoemulsification of Hard Nucleus Cataract

Oftalʹmologiâ, 2020
Purpose: The development and clinical study of improved femtosecond laser-assisted phacoemulsification (PE) technology of hard nucleus cataract.Patients and methods. Improved femtosecond laser-assisted PE of hard nucleus cataract performed in 83 patients
Yu. N. Yousef, G. V. Voronin, S. N. Yousef, A. S. Vvedenskiy, L. Alkharki, N. Y. Shkolyarenko, E. V. Reznikova   +6 more
doaj   +1 more source

Flap Thickness and the Risk of Complications in Mechanical Microkeratome and Femtosecond Laser In Situ Keratomileusis: A Literature Review and Statistical Analysis

Diagnostics, 2021
Introduction: A recent Cochrane review found no difference in visual acuity outcomes between femtosecond-assisted laser in situ keratomileusis (LASIK) and LASIK using mechanical microkeratomes (MMKs).
Piotr Kanclerz, Ramin Khoramnia
doaj   +1 more source

Modelling and experiments of self-reflectivity under femtosecond ablation conditions

, 2014
We present a numerical model which describes the propagation of a single femtosecond laser pulse in a medium of which the optical properties dynamically change within the duration of the pulse.
Dijkhuis, J. I., Krol, D. M., van Oosten, D., Wolbers, S. A., Zhang, H.   +4 more
core   +1 more source

Effect of Femtosecond Laser Polarization on the Damage Threshold of Ta₂O₅/SiO₂ Film

Applied Sciences, 2022
The study used linearly and circularly polarized femtosecond pulsed lasers to irradiate a Ta2O5/SiO2 film. Firstly, the damage thresholds of the film for linearly and circularly polarized femtosecond pulsed lasers were measured in 1-on-1 mode.
Luwei Zhang, Xiaodong Jia, Yunzhe Wang, Yin Zhang, Anmin Chen, Junfeng Shao, Changbin Zheng   +6 more
doaj   +1 more source

Possible surface plasmon polariton excitation under femtosecond laser irradiation of silicon

, 2013
The mechanisms of ripple formation on silicon surface by femtosecond laser pulses are investigated. We demonstrate the transient evolution of the density of the excited free-carriers.
Born M., Jackson J., Maier S. A., Marc Sentis, Pankove J. I., Raether H., Rémi Torres, Sze S., Tatiana E. Itina, Thibault J.-Y. Derrien, Thierry Sarnet   +10 more
core   +3 more sources

Polarization‐resolved femtosecond Vis/IR spectroscopy tailored for resolving weak signals in biological samples using minimal sample volume

FEBS Open Bio, EarlyView.
Unique biological samples, such as site‐specific mutant proteins, are available only in limited quantities. Here, we present a polarization‐resolved transient infrared spectroscopy setup with referencing to improve signal‐to‐noise tailored towards tracing small signals. We provide an overview of characterizing the excitation conditions for polarization‐
Clark Zahn, Karsten Heyne
wiley   +1 more source

Ultrafast Photoexcitation Induced Nonthermal Lattice Expansion in 2D Perovskite

Advanced Science
Light‐induced lattice change of perovskites is found to be critical for device performance. However, the underlying mechanism is still not fully understood.
Xiangyu Chen, Jiakang Zhou, Yunfan Yue, Zhongle Zeng, Xuewen Wang   +4 more
doaj   +1 more source