Results 11 to 20 of about 2,279,860 (296)
New Journal of Physics, 2021 Isolated attosecond pulses (IAPs) in the soft x-ray (SXR) region are highly desirable for attosecond time-resolved experiments. Here we identify a transient phase matching gating method for the generation of such IAPs with mid-infrared (MIR) lasers. This
Baochang Li +5 more
doaj +1 more source
All-Fiber Gas Cavity Based on Anti-Resonant Hollow-Core Fibers Fabricated by Splicing with End Caps
Photonics, 2021 In recent years, fiber gas lasers have obtained a rapid development, however, efficient and stable pump coupling is a key limitation for their applications in the future.
Jing Shi +8 more
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Laser-Induced Gas Vortices [PDF]
Physical Review Letters, 2012 Properly polarized and correctly timed femtosecond laser pulses have been demonstrated to create rotational states with a preferred sense of rotation. We show that due to conservation of angular momentum, collisional relaxation of these unidirectionally rotating molecules leads to the generation of macroscopic vortex flows in the gas.
Steinitz, Uri +2 more
openaire +3 more sources
All-Fiber Gas Raman Laser by D2-Filled Hollow-Core Photonic Crystal Fibers
Photonics, 2021 We report here an all-fiber structure tunable gas Raman laser based on deuterium-filled hollow-core photonic crystal fibers (HC-PCFs). An all-fiber gas cavity is fabricated by fusion splicing a 49 m high-pressure deuterium-filled HC-PCF with two solid ...
Wenxi Pei +4 more
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Porokeratosis ptychotropica: a case report [PDF]
Journal of Yeungnam Medical Science, 2023 Porokeratosis ptychotropica is an uncommon form of porokeratosis, which was initially described in 1995. It is clinically characterized by symmetrical reddish to brown-colored hyperkeratotic, verrucous, or psoriasiform plaques on the perianal and gluteal
Young-Wook Ryoo +3 more
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Interband cascade lasers for the mid-infrared spectral region [PDF]
, 2014 Financial support of this work by the German Ministry of Education and Research (FKZ: 13N12440) and by the European Commission in the framework of the FP7 project 'WideLase’ (grant no.
Dallner, M. +7 more
core +1 more source
Advances in small lasers [PDF]
, 2014 M.T.H was supported by an Australian Research council Future Fellowship research grant for this work. M.C.G. is grateful to the Scottish Funding Council (via SUPA) for financial support.Small lasers have dimensions or modes sizes close to or smaller than
Gather, Malte Christian +4 more
core +1 more source
Molecules, 2021 In recent years, mid-infrared fiber lasers based on gas-filled photonic crystal hollow-core fibers (HCFs) have attracted enormous attention. They provide a potential method for the generation of high-power mid-infrared emissions, particularly beyond 4 μm.
Wenxi Pei +5 more
doaj +1 more source
Coherent power scaling in photonic crystal surface emitting laser arrays
AIP Advances, 2021 A key benefit of photonic crystal surface emitting lasers (PCSELs) is the ability to increase output power through scaling the emission area while maintaining high quality single mode emission, allowing them to close the brightness gap which exists ...
Ben C. King +12 more
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Quartz‐Enhanced Photoacoustic Sensors for Detection of Eight Air Pollutants
Advanced Photonics Research, 2023 A quartz‐enhanced photoacoustic spectroscopy sensor architecture capable of detecting eight different air pollutants (CH4, NO2, CO2, N2O, CO, NO, SO2, and NH3) is reported.
Raffaele De Palo +10 more
doaj +1 more source