Results 31 to 40 of about 57,251 (307)

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

Fiber-laser-based, high-repetition-rate, picosecond ultraviolet source tunable across 329-348 nm [PDF]

open access: yes, 2016
We report a compact, fiber-laser-based, high-repetition-rate picosecond source for the ultraviolet (UV), providing multi-tens of milliwatt of average power across 329-348 nm.
Devi, Kavita   +2 more
core   +2 more sources

Id reaction and allergic contact dermatitis post-picosecond laser tattoo removal: A case report

open access: yesSAGE Open Medical Case Reports, 2021
The novel picosecond lasers have emerged as a mainstay device in laser tattoo removal alongside Q-switch lasers, considered the gold standard in the field.
Ian TY Wong, Larry WK Cheung
doaj   +1 more source

Use of combined picosecond 1064nm and thulium laser 1927nm in melasma treatment – case report

open access: yesJournal of Education, Health and Sport, 2022
Melasma is an acquired, chronic skin pigmentation disorder that affects mainly women and can significantly affect the quality of life and self-esteem of patients.
Urszula Kozinska, Jordi Gras-Ozimek
doaj   +1 more source

Self-Guided Intense Laser Pulse Propagation in Air

open access: yesNonlinear Analysis, 2001
We report on observation of self-guiding of picosecond laser pulses in air that produces large-scale self-phase modulation. The converging picosecond laser beam produced a confined filament over 3 m of propagation with the whitelight spectrum.
R. Danielius   +3 more
doaj   +1 more source

10 kHz repetition rate picosecond green laser for high-accuracy satellite ranging

open access: yesFrontiers in Physics, 2023
Picosecond pulse laser is the main light source for satellite laser ranging. In this paper, a 10 kHz repetition rate picosecond green laser with an average output power of 5.3 W is demonstrated.
Zhongwei Fan   +7 more
doaj   +1 more source

Ultrafast supercontinuum fiber-laser based pump-probe scanning MOKE microscope for the investigation of electron spin dynamics in semiconductors at cryogenic temperatures with picosecond time and micrometer spatial resolution

open access: yes, 2013
We describe a two-color pump-probe scanning magneto-optical Kerr effect (MOKE) microscope which we have developed to investigate electron spin phenomena in semiconductors at cryogenic temperatures with picosecond time and micrometer spatial resolution ...
Biermann, K.   +5 more
core   +1 more source

Picosecond Mode-Locking And X-Band Modulation Of Semiconductor Lasers [PDF]

open access: yes, 1983
Recent developments in two areas of high speed semiconductor lasers will be addressed: (1) passive mode-locking of a segmented-contact semiconductor laser with a reliable, controllable saturable absorber which produces stable picosecond optical pulses ...
Harder, C., Lau, K., Yariv, A.
core   +1 more source

Picosecond excimer lasers.

open access: yesThe Review of Laser Engineering, 1988
A peak power of one terawatt has been obtained in XeCl with a pulse width of 310fs. Amplified spontaneous emission (ASE) was investigated extensively by changing the gain of wide aperture discharge amplifiers. As a result, the ASE content was suppressed to less than 3% in energy by using an appropriate spatial filter before the final amplifier along ...
Akira ENDOH   +3 more
openaire   +2 more sources

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   +1 more source

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