Zobrazeno 1 - 10
of 501
pro vyhledávání: '"Litvinyuk, A A"'
Autor:
Ali, Bakhtiar, Xu, Han, Chetty, Dashavir, Sang, Robert T., Litvinyuk, Igor V., Rybachuk, Maksym
Publikováno v:
Ali et. al. J Phys Chem Lett, pages 2679-2685, 2022
The degree of laser-induced graphitisation from a sp3-bonded to a sp2-bonded carbon fraction in a single crystal chemical vapour deposited (CVD) diamond under a varying fluence of an ultrashort pulsed laser (30 fs, 800 nm, 1 kHz) irradiation has been
Externí odkaz:
http://arxiv.org/abs/2203.15505
Autor:
Mustary, Mumta Hena, Xu, Liang, Wu, Wanyang, Haram, Nida, Laban, Dane E., Xu, Han, He, Feng, Litvinyuk, Igor V., Sang, R. T.
High harmonic spectroscopy can access structural and dynamical information on molecular systems encoded in amplitude and phase of high harmonic generation (HHG) signals4. However, measurement of the harmonic phase is a daunting task. Here we present
Externí odkaz:
http://arxiv.org/abs/2111.05497
Autor:
Victor L. Lagunov, Bakhtiar Ali, Laurence J. Walsh, Andrew B. Cameron, Igor V. Litvinyuk, Maksym Rybachuk, Roy George
Publikováno v:
Applied Sciences, Vol 14, Iss 17, p 7641 (2024)
This study investigated the dose-dependent changes in the chemical composition of three dental ceramic materials—zirconia, lithium disilicate (LD), and VITA ENAMIC® hybrid composite (VITA En)—following irradiation with an ultra-short femtosecond
Externí odkaz:
https://doaj.org/article/b97f0aa3ca084730991a2a8bd7bef40e
Autor:
Chetty, D., Glover, R. D., Tong, X. M., deHarak, B. A., Xu, H., Haram, N., Bartschat, K., Palmer, A. J., Luiten, A. N., Light, P. S., Litvinyuk, I. V., Sang, R. T.
We present a joint experimental-theoretical study on the effect of the carrier-envelope phase (CEP) of a few-cycle pulse on the atomic excitation process. We focus on the excitation rates of argon as a function of CEP in the intensity range from 50-3
Externí odkaz:
http://arxiv.org/abs/2108.06841
We investigate the influence of relativistic nondipole effects on the photoelectron spectra of argon, particularly in the low kinetic energy region (0 eV - 5 eV). In our experiment, we use intense linearly polarised 800 nm laser pulse to ionise Ar fr
Externí odkaz:
http://arxiv.org/abs/2107.13793
Ultra-fast femtosecond (fs) lasers provide a unique technological opportunity to precisely and efficiently micromachine materials with minimal thermal damage owing to the reduced heat transfer into the bulk of the work material offered by short pulse
Externí odkaz:
http://arxiv.org/abs/2103.00491
Publikováno v:
Vestnik Urologii, Vol 11, Iss 2, Pp 215-222 (2023)
Introduction. Percutaneous nephrolitholapaxy (PNL) is the optimal method in the treatment of large or complex renal stones. Surgical equipment and endoscopic equipment, and specialised tools have been constantly developing since the advent of PNL in
Externí odkaz:
https://doaj.org/article/a18dd341af544c14abc243e6cc692f4c
Autor:
A. A. Zakharchenko, N. V. Litvinyuk, L. A. Polezhaev, A. V. Protopopov, Yu. S. Vinnik, A. V. Danilova
Publikováno v:
Acta Biomedica Scientifica, Vol 8, Iss 3, Pp 172-178 (2023)
The article presents data on variant X-ray anatomy of the superior rectal artery and types of arterial architectonics of the rectum. The causes of recurrent hemorrhoidal disease after traditional transanal surgical interventions are highlighted. The
Externí odkaz:
https://doaj.org/article/42c327c693d644bc8cfc68c8fa246d04
Autor:
Abdrakhman Naizabekov, Marina Samodurova, Evgenii Bodrov, Sergey Lezhnev, Olga Samoilova, Evgeny Trofimov, Dmitry Mikhailov, Ksenia Litvinyuk, Svetlana Trofimova, Yuliya Latfulina, Evgeniy Panin, Kirill Pashkeev
Publikováno v:
Case Studies in Construction Materials, Vol 19, Iss , Pp e02541- (2023)
The purpose of this work was to develop methods for obtaining composite coatings based on high-entropy alloys by laser cladding from mixtures of low-entropy powders. Powders of pure copper (Cu), titanium carbide (TiC), aluminum oxide (Al2O3), as well
Externí odkaz:
https://doaj.org/article/798a4864a4634f58b5559091e7328e9d
Autor:
Chetty, Dashavir, Glover, Rohan D., deHarak, Bruno A., Tong, Xiao-Min, Xu, Han, Pauly, Tom, Smith, Noah, Hamilton, Kathryn R., Bartschat, Klaus, Ziegel, Joseph P., Douguet, Nicolas, Luiten, Andre N., Light, Philip S., Litvinyuk, Igor V., Sang, Robert T.
Publikováno v:
Phys. Rev. A 101, 053402 (2020)
We investigate AC Stark-shifted resonances in argon with ultrashort near-infrared pulses. Using 30 fs pulses we observe periodic enhancements of the excitation yield in the intensity regions corresponding to the absorption of 13 and 14 photons. By re
Externí odkaz:
http://arxiv.org/abs/1912.06280