Results 21 to 30 of about 1,168,263 (300)

Diode-Pumped High Energy and High Average Power All-Solid-State Picosecond Amplifier Systems

open access: yesApplied Sciences, 2015
We present our research on the high energy picosecond laser operating at a repetition rate of 1 kHz and the high average power picosecond laser running at 100 kHz based on bulk Nd-doped crystals.
Jiaxing Liu   +5 more
doaj   +1 more source

Application of Picosecond Laser in Dermatology

open access: yesBerkala Ilmu Kesehatan Kulit dan Kelamin (Periodical of Dermatology and Venerology), 2023
Background: Lasers are one of the most important treatment modalities in dermatology. Lasers interact with chromophores through several mechanisms that depend on fluence and pulse durations.
Lunardi Bintanjoyo, Diah Mira Indramaya
doaj   +1 more source

56W frequency doubled source at 530 nm pumped by a single-mode single-polarization picosecond Yb3+-doped fiber MOPA [PDF]

open access: yes, 2010
We report a frequency doubled green source at 530nm pumped based on an all-fiber, picosecond, single polarization Yb3+-doped fiber MOPA delivering 20ps pulses at user selectable repetition rates of up to 910MHz and an average output power in excess of ...
Chen, Kang Kang   +17 more
core   +1 more source

The Picosecond Laser Effects on Tattoo Removal and Metabolic Pathways

open access: yesClinical, Cosmetic and Investigational Dermatology, 2021
Yan Qu,1 Xien Feng,2 Jin’ning Liang,2 Junru Liu,3 Dong Gao2 1Department of Dermatology, The Affiliated Hospital of Weifang Medical University, Weifang, Shandong, 261031, People’s Republic of China; 2Department of Dermatology, Yantai Yuhuangding Hospital,
Qu Y, Feng X, Liang J, Liu J, Gao D
doaj  

Numerical analysis of pulse pedestal and dynamic chirp formation on picosecond modelocked laser pulses after propagation through a semiconductor optical amplifier [PDF]

open access: yes, 2005
A numerical analysis, based on a modified Schrodinger equation, of the formation of pulse pedestals and dynamic chirp formation on picosecond pulses after propagation through a semiconductor optical amplifier is presented.
Anandarajah, Prince M.   +7 more
core   +2 more sources

Investigation of thermodynamic properties in picosecond laser-produced plasmas on silicon

open access: yesAIP Advances, 2023
The validity of local thermodynamic equilibrium (LTE) in plasma is a long-term concern for laser-induced breakdown spectroscopy applications. In this paper, the spatial and temporal dependence of LTE deviation in picosecond laser-induced plasmas has been
Zelin Liu   +9 more
doaj   +1 more source

3.8-μm Mid-Infrared Laser Quasi-Synchronously Pumped by a MOPA Structured Picosecond Yb Fiber Amplifier With Multi-pulse Operation

open access: yesIEEE Photonics Journal, 2016
A picosecond pulsed mid-infrared laser with multi-pulse operation is experimentally demonstrated. This mid-infrared laser was composed of a fiber laser pumped optical parametric oscillator (OPO).
Kaihua Wei, Xuefang Zhou, Xiaomin Lai
doaj   +1 more source

Yellow picosecond diamond Raman laser [PDF]

open access: yes2017 Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference (CLEO/Europe-EQEC), 2017
Visible pulsed lasers are required for many applications, for example in biomedical imaging [1] and STED microscopy [2]. Such applications often have stringent requirements on the wavelength and pulse duration, which are not directly available from typical solid-state sources.
Nikkinen, Jari   +5 more
openaire   +2 more sources

Possible explanations for different surface quality in laser cutting with 1 micron and 10 microns beams [PDF]

open access: yes, 2012
In laser cutting of thick steel sheets, quality difference is observed between cut surfaces obtained with 1 micron and 10 micron laser beams. This paper investigates physical mechanisms for this interesting and important problem of the wavelength ...
Remy Fabbro   +3 more
core   +1 more source

Comparative treatments of a green tattoo ink with Ruby, Nd:YAG nano- and picosecond lasers in normal and array mode

open access: yesScientific Reports, 2022
The tattoos removal has become an issue upon spread of the tattooing practice worldwide and hindsight regrets. Lasers are typically used for the purpose, though some colours such as green are considered “recalcitrant” to the treatment.
Daniele Cecchetti   +7 more
doaj   +1 more source

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