Results 41 to 50 of about 3,154,738 (335)

Gigahertz femtosecond Cr:ZnS laser [PDF]

Advanced Solid State Lasers, 2014
We demonstrate the first Cr:ZnS laser with a gigahertz pulse repetition rate. The passively mode-locked by the graphene-based mirror laser provides 105 mW output power with 180 fs pulse duration and 110 pJ pulse energy.
Tolstik, Nikolai, Evgeni, Sorokin, Sorokina, Irina T.   +2 more
openaire   +2 more sources

High-speed femtosecond laser plasmonic lithography and reduction of graphene oxide for anisotropic photoresponse

Light: Science & Applications, 2020
Micro/nanoprocessing of graphene surfaces has attracted significant interest for both science and applications due to its effective modulation of material properties, which, however, is usually restricted by the disadvantages of the current fabrication ...
Ting-Ting Zou, Bo Zhao, W. Xin, Ye Wang, Bin Wang, Xin Zheng, Hong-Bo Xie, Zhi-Yu Zhang, Jianjun Yang, Chun-Lei Guo   +9 more
semanticscholar   +1 more source

Femtosecond laser ablation of enamel [PDF]

Journal of Biomedical Optics, 2016
The surface topographical, compositional, and structural modifications induced in human enamel by femtosecond laser ablation is studied. The laser treatments were performed using a Yb:KYW chirped-pulse-regenerative amplification laser system (560 fs and 1030 nm) and fluences up to 14  J/cm2.
Quang-Tri, Le, Caroline, Bertrand, Rui, Vilar   +2 more
openaire   +2 more sources

Nonthermal phase transitions in semiconductors induced by a femtosecond extreme ultraviolet laser pulse [PDF]

, 2013
Part of Focus on High Energy Density Physics. In this paper, we present a novel theoretical approach, which allows the study of nonequilibrium dynamics of both electrons and atoms/ions within free-electron laser excited semiconductors at femtosecond time
Jeschke, H. O., Ziaja, Beata, Jeschke, Harald O., Medvedev, Nikita   +3 more
core   +1 more source

Bioinspired micro/nanostructured surfaces prepared by femtosecond laser direct writing for multi-functional applications

International Journal of Extreme Manufacturing, 2020
Femtosecond laser direct writing (FLDW) has been widely employed in controllable manufacturing of biomimetic micro/nanostructures due to its specific advantages including high precision, simplicity, and compatibility for diverse materials in comparison ...
Yi-Yuan Zhang, Yunlong Jiao, Chuan-Zong Li, Chao Chen, Jiawen Li, Yan-Lei Hu, Dong Wu, J. Chu   +7 more
semanticscholar   +1 more source

Revealing Local Temporal Profile of Laser Pulses of Intensity above 10¹⁴ W/cm²

Sensors, 2023
We demonstrated a method for in situ temporal characterization of an intense femtosecond laser pulse around its focus where the laser intensity exceeds 1014 W/cm2.
Qi Lu, Xiang Zhang, Arnaud Couairon, Yi Liu   +3 more
doaj   +1 more source

Femtosecond Laser Micro/Nano-manufacturing: Theories, Measurements, Methods, and Applications

Nanomanufacturing and Metrology, 2020
Femtosecond laser fabrication has grown to be a major method of extreme manufacturing because of the extreme energy density and spatial and temporal scales of femtosecond lasers.
B. Guo, Jing-Ya Sun, Yanhong Hua, Ningwei Zhan, Jingang Jia, Kunpeng Chu   +5 more
semanticscholar   +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

Fibre Bragg grating fabrication in germanosilicate fibres with 244nm femtosecond laser light

, 2006
The ability to fabricate strong and extraordinarily stable Bragg gratings in any type of fibre using femtosecond laser light has attracted much interest in the recent past. The induced index change has been attributed to glass densification brought about
Banks, D.P., D. P Banks, M. Ibsen, Canning, J., Mills, J.D., Ibsen, M., A. Canagasabey, Canagasabey, A., J. Canning, J. D. Mills   +9 more
core   +1 more source

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