Results 211 to 220 of about 88,049 (304)

Clinical Efficacy Study of 755 nm Picosecond Laser Combined With 595 nm Pulsed Dye Laser in the Treatment of Port-Wine Stain. [PDF]

Photodermatol Photoimmunol Photomed
Huang J, Zhang Y, Tang Z, Luo B, Tan L, Lu J, Xiang Y, Gao L.   +7 more
europepmc   +1 more source

Method Based on Continuous Artificial Dry and Humid UV Treatments to Reduce the Luminescence Background in the Raman Spectra of Plastics

Journal of Raman Spectroscopy, EarlyView.
We propose an UV photobleaching pretreatment to reduce the strong luminescence in the Raman spectra of plastic samples. Our protocol proves its efficiency whatever the luminescence origin (from the pigments or from a surface biofilm) but requires a careful optimization of the illumination conditions (UV wavelength, time, humidity) to reach the ...
L. Dewyspelaere, L. Belec, I. Martin, V. Lenoble, A. Ruediger, A. Merlen   +5 more
wiley   +1 more source

Numerical Simulation and Experimental Study on Picosecond Laser Polishing of 4H-SiC Wafer. [PDF]

Micromachines (Basel)
Yan Y, Cheng Y, Chen S, Tang Y, Zhang F, Gao P.   +5 more
europepmc   +1 more source

Recent Advances in Photonic Bound States in the Continuum: From Fundamentals to Engineering and Implementation

Laser &Photonics Reviews, EarlyView.
This review summarizes recent progress in meta‐photonics with a focus on bound states in the continuum (BICs) as a powerful platform for light confinement and control. It covers fundamental concepts, design strategies across optical regimes, symmetry breaking for practical quasi‐BICs, tunable and AI‐assisted BIC devices, and emerging applications in ...
Hafiz Saad Khaliq, Hak‐Rin Kim
wiley   +1 more source

The Efficacy of Laser Therapy in Melasma Treatment: A Systematic Review and Meta-Analysis. [PDF]

J Cosmet Dermatol
Chehrara M, Tabavar A, Roohaninasab M, Jafary P, Mohammad AP, Mozafarpoor S, Alavi Rad E, Goodarzi A.   +7 more
europepmc   +1 more source

Germanium‐Based Mid‐Infrared Integrated Photonics

Laser &Photonics Reviews, EarlyView.
The mid‐infrared (mid‐IR) spectral range is a part of the electromagnetic spectrum in which most of the molecules have vibrational and rotational resonances. Photonics integration in this wavelength range have thus seen a burst of interest in the recent years, mainly driven by applications related with the detection of chemical and biological ...
Delphine Marris‐Morini, Goran Z. Mashanovich, Milos Nedeljkovic, Carlos Alonso‐Ramos, Laurent Vivien, Jacopo Frigerio, Giovanni Isella   +6 more
wiley   +1 more source

A New Hope for Melasma: Long-Term Clearance With 755-nm Picosecond Alexandrite Laser and Topical JAK Inhibition. [PDF]

J Cosmet Dermatol
Al-Mamoori A, Al-Badri SG, Khalil I, Al-Daraji W.   +3 more
europepmc   +1 more source

Non‐Uniform Programmable Photonic Waveguide Meshes

Laser &Photonics Reviews, EarlyView.
Integrating defect cells into uniform hexagonal waveguide meshes overcomes the fundamental spectral and temporal limitations of programmable photonics. By leveraging the Vernier effect through non‐uniform coupled cavities, this architecture achieves a tenfold increase in free spectral range and ultra‐fast sampling times, paving the way for next ...
Cristina Catalá‐Lahoz, José Capmany
wiley   +1 more source

A comparative study of the efficacy of an ultra-picosecond laser versus an ultra-pulsed CO₂ laser in the treatment of xanthelasma palpebrarum. [PDF]

Am J Transl Res
Peng J, Zhang J, Xiao C.
europepmc   +1 more source

Ultra Short Pulse Laser Welding of Glass to Metal in the Low Fluence Regime

Laser &Photonics Reviews, EarlyView.
Ultrashortpulse laser welding enables precise joining of glass and metal with minimal thermal damage. We introduce the TwoThresholds Criteria to identify suitable laser parameters by combining the nonlinearabsorption threshold in glass with the metalmodification fluence threshold.
Lukas Günther, Anne Friedrich, Jens Ulrich Thomas, Andreas Koglbauer, Dominique de Ligny   +4 more
wiley   +1 more source