Results 11 to 20 of about 57,251 (307)

Subsurface Fractional Ablative Resurfacing of a Periareolar Scar Using 1,064-nm Picosecond Laser with Micro-Lens Array [PDF]

open access: yesArchives of Aesthetic Plastic Surgery, 2018
Although picosecond lasers were invented as an effective treatment of pigmented lesions, the Food and Drug Administration has also approved picosecond lasers with fractional mode for treating acne scars and wrinkles on the face.
Yeansu Choi, Eun Soo Park
doaj   +1 more source

Beating of exciton-dressed states in a single semiconductor InGaAs/GaAs quantum dot [PDF]

open access: yes, 2009
We report picosecond control of excitonic dressed states in a single semiconductor quantum dot. A strong laser pulse couples the exciton and biexciton states, to form an Autler-Townes doublet of the neutral exciton transition.
Boyle, S.J.   +5 more
core   +1 more source

Developments of Space Debris Laser Ranging Technology Including the Applications of Picosecond Lasers

open access: yesApplied Sciences, 2021
Debris laser ranging (DLR) is receiving considerable attention as an accurate and effective method of determining and predicting the orbits of space debris.
Haifeng Zhang   +7 more
doaj   +1 more source

Variable frequency picosecond optical pulse generation from laser diodes by electrical feedback [PDF]

open access: yes, 1985
High repetition rate picosecond optical pulse generation is achieved by providing electrical feedback (with and without external gain) to a self-pulsating laser diode. The feedback improves pulsation short-term stability (
Izadpanah, S. H.   +4 more
core   +1 more source

All-Polarization-Maintaining, Mode-Locking Fiber Front-End Laser Delivering Both the Picosecond Seed Laser and the Femtosecond Seed Laser

open access: yesPhotonics, 2023
An ytterbium-doped, mode-locking fiber front-end laser, delivering both a femtosecond seed laser and picosecond seed laser, was demonstrated. The fundamental repetition rate of the 1031 nm mode-locked laser was 32.77 MHz, realized with the all ...
Yinuo Zhang   +6 more
doaj   +1 more source

Picosecond Laser Ablation of Polyhydroxyalkanoates (PHAs): Comparative Study of Neat and Blended Material Response [PDF]

open access: yes, 2019
Polyhydroxyalkanoates (PHAs) have emerged as a promising biodegradable and biocompatible material for scaffold manufacturing in the tissue engineering field and food packaging. Surface modification is usually required to improve cell biocompatibility and/
Basnett, P.   +7 more
core   +2 more sources

Pattern analysis of laser-tattoo interactions for picosecond- and nanosecond-domain 1,064-nm neodymium-doped yttrium-aluminum-garnet lasers in tissue-mimicking phantom

open access: yesScientific Reports, 2017
During laser treatment for tattoo removal, pigment chromophores absorb laser energy, resulting in fragmentation of the ink particles via selective photothermolysis.
Keun Jae Ahn   +5 more
doaj   +1 more source

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

Experimental Investigations on Laser Ablation of Aluminum in Sub-Picosecond Regimes

open access: yesApplied Sciences, 2020
Due to high power and ultrashort pulses, femtosecond lasers excel at (but are not limited to) processing materials whose thicknesses are less than 500 microns. Numerous experiments and theoretical analyses testify to the fact that there are solid grounds
Katarzyna Garasz, Marek Kocik
doaj   +1 more source

Application of photoelectric technology on melasma

open access: yesPifu-xingbing zhenliaoxue zazhi, 2022
Melasma is a skin disease where brown or pigmented patches appear on the face. Currently, it is difficult to be treated because of lower success rate and higher recurrence rate.
Hua LI, Yong HAO, Hui HAN
doaj   +1 more source

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