Results 1 to 10 of about 215,527 (326)

Femtosecond Beam Transformation Effects in Water, Enabling Increased Throughput Micromachining in Transparent Materials [PDF]

Applied Sciences, 2019
Femtosecond lasers are widely applied in scientific and industrial fields. Recent trends in the laser market show decreasing prices for femtosecond units, which will ultimately lead to the opening of new markets that were inaccessible in the past due to ...
Simas Butkus, Eugenijus Gaižauskas, Lina Mačernytė, Vytautas Jukna, Domas Paipulas, Valdas Sirutkaitis   +5 more
doaj   +2 more sources

Mid-infrared parametric wavelength conversion seeded with fiber optical parametric sources [PDF]

EPJ Web of Conferences, 2021
A new method of seeding X2 optical parametric converters with X3 fiber optical parametric sources is introduced. We demonstrate a tunable mid-infrared source operating at around 3 µm with the technique and discuss the potential of this architecture.
Battle Ronan A., Chandran Anita M., Runcorn Timothy H., Mussot Arnaud, Kudlinski Alexandre, Murray Robert T., Taylor J. Roy   +6 more
doaj   +1 more source

Varying pre-plasma properties to boost terahertz wave generation in liquids

Communications Physics, 2021
Terahertz frequency radiation provides a powerful tool for the investigation of matter from the life science to the solid state and plasmas. The authors experimentally and numerically present enhanced terahertz wave generation by single-color double ...
Evgenia A. Ponomareva, Azat O. Ismagilov, Sergey E. Putilin, Anton N. Tsypkin, Sergei A. Kozlov, Xi-Cheng Zhang   +5 more
doaj   +1 more source

Radiation shift from triple to quadruple frequency caused by the interaction of terahertz pulses with a nonlinear Kerr medium

Scientific Reports, 2022
High-intensity optical radiation propagation in a transparent dielectric medium causes the phenomena of pulse self-action and radiation generation at triple frequencies due to the cubic nonlinearity of the medium.
Ilya Artser, Maksim Melnik, Azat Ismagilov, Mikhail Guselnikov, Anton Tcypkin, Sergei Kozlov   +5 more
doaj   +1 more source

Controlled Spintronic Emitter of THz Radiation on an Atomically Thin WS₂/Silicon Substrate

Metals, 2022
The control and monitoring of the polarization of terahertz radiation are of interest for numerous applications. Here we present a simple controllable THz emitter with a small coercive magnetic field.
Arseniy Buryakov, Anastasia Gorbatova, Pavel Avdeev, Nikita Bezvikonnyi, Daniil Abdulaev, Alexey Klimov, Sergei Ovcharenko, Elena Mishina   +7 more
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Femtosecond covariance spectroscopy [PDF]

Proceedings of the National Academy of Sciences, 2019
Significance Here we establish femtosecond covariance spectroscopy as a technique that uses ultrashort stochastic light pulses to measure nonlinear material responses. By using pulses with spectrally uncorrelated fluctuations we can leverage on the noise and consider each repetition of the experiment as a measurement under different ...
TOLLERUD, JONATHAN OWEN, SPARAPASSI, GIORGIA, MONTANARO, ANGELA, Asban, Shahaf, Glerean, Filippo, Giusti, Francesca, Marciniak, Alexandre, Kourousias, George, Billè, Fulvio, Cilento, Federico, Mukamel, Shaul, Fausti, Daniele   +11 more
openaire   +6 more sources

Corneal astigmatic outcomes after femtosecond laser-assisted cataract surgery combined with surface penetrating arcuate keratotomies [PDF]

International Journal of Ophthalmology, 2023
AIM: To evaluate corneal astigmatic outcomes of femtosecond laser-assisted arcuate keratotomies (FAKs) combined with femtosecond-laser assisted cataract surgery (FLACS) over 12mo follow-up.
Nick Stanojcic, David O'Brart, Chris Hull, Vijay Wagh, Elodie Azan, Mani Bhogal, Scott Robbie, Ji-Peng Olivia Li   +7 more
doaj   +1 more source

Clocking Femtosecond X Rays [PDF]

Physical Review Letters, 2005
Linear-accelerator-based sources will revolutionize ultrafast x-ray science due to their unprecedented brightness and short pulse duration. However, time-resolved studies at the resolution of the x-ray pulse duration are hampered by the inability to precisely synchronize an external laser to the accelerator.
Cavalieri , A., Fritz, D., Lee , S., Bucksbaum, P., Reis, D., Rudati , J., Mills , D., Fuoss , P., Stephenson, G., Kao, C., Siddons, D., Lowney, D., MacPhee, A., Weinstein , D., Falcone, R., Pahl , R., Als-Nielsen, J., Blome , C., Dusterer, S., Ischebeck, R., Schlarb, H., Schulte-Schrepping , H., Tschentscher, T., Schneider, J., Hignette, O., Sette , F., Sokolowski-Tinten , K., Chapman, H., Lee , R., Hansen, T., Synnergren, O., Larsson , J., Techert, S., Sheppard, J., Wark, J., Bergh, M., Caleman, C., Huldt , G., van der Spoel , D., Timneanu, N., Hajdu, J., Akre, R., Bong , E., Emma, P., Krejcik, P., Arthur, J., Brennan , S., Gaffney, K., Lindenberg , A., Luening, K., Hastings, J.   +50 more
openaire   +7 more sources

High Field Single- to Few-Cycle THz Generation with Lithium Niobate

Photonics, 2021
The transient terahertz (THz) pulse with high peak field has become an important tool for matter manipulation, enabling many applications such as nonlinear spectroscopy, particle acceleration, and high harmonic generation.
Xing Zhu, David R. Bacon, Julien Madéo, Keshav M. Dani   +3 more
doaj   +1 more source

Large interfacial contribution to ultrafast THz emission by inverse spin Hall effect in CoFeB/Ta heterostructure

iScience, 2022
Summary: Ultrafast THz radiation generation from ferromagnetic/nonmagnetic (FM/NM) spintronic heterostructures generally exploits the spin-charge conversion within the nonmagnetic layer and its interface with the ferromagnetic layer. Various possible sub-
Sandeep Kumar, Sunil Kumar
doaj   +1 more source