Results 131 to 140 of about 155,967 (379)
Novel treatment of calcifications from dermatomyositis with picosecond and carbon dioxide laser
JAAD Case Reports, 2020 Michael Abrouk, MD +2 more
doaj +1 more source
, 2015 We use time- and angle-resolved photoemission to measure quasiparticle relaxation dynamics across a laser-induced superconducting phase transition in Bi2Sr2CaCu2O8+delta.
Affeldt, Gregory +11 more
core +1 more source
Enhancing Triplet Excitons Lifetime Through Controlled Intermolecular Interactions
Advanced Optical Materials, EarlyView.Singlet fission (SF) is investigated in pentacene embedded in a surface‐anchored metal–organic framework, enabling a molecular arrangement inaccessible in pure organic crystals. This architecture changes the singlet fission dynamics significantly and enhances the triplet lifetime by almost four orders of magnitude.
Martin Richter +9 more
wiley +1 more source
JEADV Clinical PracticeBackground Laser tattoo removal traditionally employs q‐switched and picosecond lasers, which require multiple sessions. Besides the selective photothermolysis that laser devices offer, the photoacoustic effect by acoustic pulse devices may provide ...
Dimitra Kiritsi +5 more
doaj +1 more source
Picosecond cathodoluminescence
, 2005 We have developed an original time resolved cathodoluminescence (TRCL) set-up with temporal performances similar to those of conventional time resolved optical techniques, keeping the capability to get structural information through the secondary electron mode of an electron microscope (SEM).
openaire +1 more source
Advanced Optical Materials, EarlyView.The efficiency of bulk perovskite‐sensitised upconversion is hindered by parasitic singlet back‐transfer. A 2D perovskite spacer layer is introduced to weaken this loss pathway by increasing the separation between the sensitiser and the emitter. The spacer layer enhances the upconversion efficiency at lower excitation powers and improves the stability ...
Nicholas P. Sloane +10 more
wiley +1 more source
High-power picosecond laser drilling/machining of carbon fibre-reinforced polymer (CFRP) composites
, 2016 The large differences in physical and thermal properties of the carbon fibre-reinforced polymer (CFRP) composite constituents make laser machining of this material challenging. An extended heat-affected zone (HAZ) often occurs.
A. Salama +3 more
semanticscholar +1 more source
Advanced Optical Materials, EarlyView.This work dissects the ultrafast response of polydisperse plasmonic nanorods using two‐dimensional electronic spectroscopy, uniquely combining temporal and spectral resolution. Our ultrabroadband pulses cover both transverse and longitudinal nanorods’ resonances, revealing sub‐200‐fs dynamics and distinct broadening mechanisms.
Andrea Schirato +8 more
wiley +1 more source
Broadband, picosecond two-stage optical parametrical chirped pulse amplification system at 100 Hz
Physical Review Accelerators and Beams, 2019 We report on a broadband, picosecond two-stage optical parametrical chirped pulse amplification system, pumped at 515 nm by a frequency doubled Yb regenerative amplifier.
Mario Galletti +5 more
doaj +1 more source
Advanced Photonics Research, EarlyView.This review highlights recent advances in accelerating luminescence in nanostructures through cooperative emission, resonator coupling, and nonlocal light–matter interactions. By unifying concepts such as excitonic superradiance, superfluorescence, and the plasmonic Purcell effect, it reveals physical limits of ultrafast emission and their potential ...
Masaaki Ashida +3 more
wiley +1 more source