Results 21 to 30 of about 57,251 (307)

Fiber-integrated frequency-doubling of a picosecond Raman laser to 560 nm [PDF]

open access: yes, 2015
We report the development of a fiber-integrated picosecond source at 560 nm by second harmonic generation of a Raman fiber laser. A picosecond ytterbium master oscillator power fiber amplifier is used to pulse-pump a Raman amplifier, which is seeded by a
kelleher, EJR   +5 more
core   +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

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  

Picosecond Laser Chemistry in Supersonic Jet Beams [PDF]

open access: yes, 1983
In this review we describe the development and the applications of the picosecond-jet technique, which utilizes a picosecond laser and a supersonically-cold jet beam of large molecules.
Zewail, Ahmed H.
core   +1 more source

Tunable operation of a gain-switched diode laser by nonresonant self-injection seeding [PDF]

open access: yes, 2001
In this letter, we report tunable operation of a gain-switched diode laser by nonresonant self-injection seeding from an uncoated glass slide used as an external cavity reflector.
Avrutin, E   +3 more
core   +1 more source

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

Comparison of Dopant Incorporation and Near-Infrared Photoresponse for Se-Doped Silicon Fabricated by fs Laser and ps Laser Irradiation

open access: yesCrystals, 2022
Se-doped silicon films were fabricated by femtosecond (fs) laser and picosecond (ps) laser irradiating Si–Se bilayer film-coated silicon. The surface morphology, impurity distribution, crystal phase, and near-infrared photocurrent response of fs-laser ...
Lingyan Du   +4 more
doaj   +1 more source

Measurement and Modeling of Infrared Nonlinear Absorption Coefficients and Laser-induced Damage Thresholds in Ge and GaSb [PDF]

open access: yes, 2010
Using a simultaneous fitting technique to extract nonlinear absorption coefficients from data at two pulse widths, we measure two-photon and free-carrier absorption coefficients for Ge and GaSb at 2.05 and 2.5 μm for the first time, to our knowledge ...
Bohn, M. A.   +6 more
core   +3 more sources

321W average power, 1GHz, 20ps 1060nm pulsed fiber MOPA source [PDF]

open access: yes, 2005
Pulses from a gain-switched laser diode were amplified in a fiber MOPA system to produce in excess of 320W of average power in 20ps pulses at 1GHz repetition rate at ...
Dupriez, P.   +9 more
core   +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

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