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

