Results 291 to 300 of about 1,856,713 (355)

A Prospective, Split-Face, Randomized Study Comparing Picosecond to Q-Switched Nd: YAG Laser for Treatment of Epidermal and Dermal Pigmented Lesions in Asians.

Dermatologic Surgery, 2020
BACKGROUND Whether picosecond lasers outperform Q-switched lasers in treating pigmented lesions has not been clearly evaluated. OBJECTIVE To compare the efficacy and safety of picosecond and Q-switched lasers in treating epidermal and dermal pigmented ...
Chanida Ungaksornpairote, W. Manuskiatti, Natchaya Junsuwan, R. Wanitphakdeedecha   +3 more
semanticscholar   +1 more source

A picosecond CuBr laser

Applied Physics B Photophysics and Laser Chemistry, 1991
A novel method for the pulse shortening of the 578 nm spectral line from a CuBr laser is proposed in this paper. By amplifying a seeded picosecond dye laser through the active medium of a CuBr laser, nearly Fourier-transform-limited picosecond pulses of the CuBr laser have been obtained and the output characteristics are also investigated in detail.
Lei Zhu, Fucheng Lin
openaire   +1 more source

Picosecond dye laser pumped by an excimer laser

Applied Optics, 1985
A XeCl excimer laser-pumped dye laser generating 40-psec long pulses with 2.5-MW peak power, operating at 382 nm with 10-pps repetition rate is described. Short-pulse generation is achieved by cascade pumping of a quenched dye laser. The laser is simple and versatile. The possibilities of further developments are also discussed.
Bor, Z., Racz, B.
openaire   +3 more sources

Efficacy and safety of picosecond laser for the treatment of melasma: a systematic review and meta-analysis

Lasers in Medical Science, 2023
Jiang Feng, Sihao Shen, Xiuzu Song, W. Xiang   +3 more
semanticscholar   +1 more source

Laser slicing of 4H-SiC wafers based on picosecond laser-induced micro-explosion via multiphoton processes

Optics & Laser Technology, 2022
Shifei Han, Hai-juan Yu, Chao-jian He, Shusen Zhao, Chaoyu Ning, Lu Jiang, Xu Lin   +6 more
semanticscholar   +1 more source

Dye laser picosecond convertor

SPIE Proceedings, 1994
The operation characteristics of a dye laser device designed for converting a fixed wavelength pump pulse emitted from a nanosecond non-mode lockable laser such as nitrogen, excimer laser into high-power picosecond laser pulses spectrally adjustable between 386 to 700 nm are presented.
Nguyen V. Hung, Pham D. Long, Nguyen V. Tien, Y. H. Meyer, Doan H. Thang, Dinh V. Trung   +5 more
openaire   +1 more source

Synchronous tunable picosecond laser

Soviet Journal of Quantum Electronics, 1977
A picosecond rhodamine 6GDN dye laser was constructed. It was excited longitudinally by a train of pulses of the second harmonic of the neodymium laser radiation and the pulses emitted by both lasers were fully synchronized. The divergence of the dye laser radiation was minimized by matching the optical lengths of the resonators.
M G Grozeva, L I Pavlov, K V Stamenov, N G Khadzhiĭski   +3 more
openaire   +1 more source

The picosecond laser for tattoo removal

Lasers in Medical Science, 2016
The prevalence of tattoos continues to grow as modern society's stigma towards this form of body art shifts towards greater acceptance. Approximately one third of Americans aged 18-25 and 40 % of Americans aged 26-40 are tattooed. As tattoos continue to rise in popularity, so has the demand for an effective method of tattoo removal such as lasers.
Vincent M. Hsu, Adam S. Aldahan, Stephanie Mlacker, Vidhi V. Shah, Keyvan Nouri   +4 more
openaire   +2 more sources

Investigation of low-cost through glass vias formation on borosilicate glass by picosecond laser-induced selective etching

Journal of Materials Science: Materials in Electronics, 2021
Li Chen, Daquan Yu
semanticscholar   +1 more source

Efficacy and Safety of Ablative Resurfacing With A High‐Energy 1,064 Nd‐YAG Picosecond‐domain Laser for the Treatment of Facial Acne Scars in Asians

Lasers in Surgery and Medicine, 2020
There have been few studies regarding the use of a picosecond‐domain laser for acne scars in Asians. This prospective study evaluated the efficacy and safety of a high‐energy 1,064 nm Nd:YAG picosecond‐domain laser for ablation and resurfacing of facial ...
Ying-Xiu Dai, Ying-Yen Chuang, Po-Yu Chen, Chih-Chiang Chen   +3 more
semanticscholar   +1 more source