Zobrazeno 1 - 10
of 11
pro vyhledávání: '"Katalin Varju"'
Publikováno v:
Applied Sciences, Vol 9, Iss 8, p 1572 (2019)
We consider a quantum mechanical model for the high-order harmonic generation in bulk solids. The bandgap is assumed to be considerably larger than the exciting photon energy. Using dipole approximation, the dynamical equations for different initial
Externí odkaz:
https://doaj.org/article/40059374b2fc45088384878c7f50d0d3
Autor:
Stefanos Chatziathanasiou, Subhendu Kahaly, Emmanouil Skantzakis, Giuseppe Sansone, Rodrigo Lopez-Martens, Stefan Haessler, Katalin Varju, George D. Tsakiris, Dimitris Charalambidis, Paraskevas Tzallas
Publikováno v:
Photonics, Vol 4, Iss 2, p 26 (2017)
Real-time observation of ultrafast dynamics in the microcosm is a fundamental approach for understanding the internal evolution of physical, chemical and biological systems. Tools for tracing such dynamics are flashes of light with duration comparabl
Externí odkaz:
https://doaj.org/article/05a671b95d424cdfb1d36f18a5326045
Autor:
Mojtaba Shirozhan, Sudipta Mondal, Tímea Grósz, Balázs Nagyillés, Balázs Farkas, Arjun Nayak, Naveed Ahmed, Indranuj Dey, Shivani Choudhary De Marco, Kwinten Nelissen, Miklos Kiss, Lénárd Gulyás Oldal, Tamás Csizmadia, Zoltán Filus, Massimo De Marco, Saibabu Madas, Mousumi Upadhyay Kahaly, Dimitris Charalambidis, Paraskevas Tzallas, Elisa Appi, Robin Weissenbilder, P. Eng-Johnsson, Anne L’Huillier, Zsolt Diveki, Balázs Major, Katalin Varjú, Subhendu Kahaly
Publikováno v:
Ultrafast Science, Vol 4 (2024)
Advancements in light engineering have led to the creation of pulsed laser sources capable of delivering high-repetition-rate, high-power few-cycle laser pulses across a wide spectral range, enabling exploration of many fascinating nonlinear processe
Externí odkaz:
https://doaj.org/article/dfe378efc6cc43d1aad9ff13eb068655
Intense isolated attosecond pulses from two-color few-cycle laser driven relativistic surface plasma
Autor:
Sudipta Mondal, Mojtaba Shirozhan, Shivani Choudhary, Kwinten Nelissen, Paraskevas Tzallas, Dimitris Charalambidis, Katalin Varjú, Subhendu Kahaly
Publikováno v:
Scientific Reports, Vol 12, Iss 1, Pp 1-12 (2022)
Abstract Ultrafast plasma dynamics play a pivotal role in the relativistic high harmonic generation, a phenomenon that can give rise to intense light fields of attosecond duration. Controlling such plasma dynamics holds key to optimize the relevant s
Externí odkaz:
https://doaj.org/article/91694cc0fda84fe2be1c69cbfc66cfb2
Autor:
Tamás Csizmadia, Zoltán Filus, Tímea Grósz, Peng Ye, Lénárd Gulyás Oldal, Massimo De Marco, Péter Jójárt, Imre Seres, Zsolt Bengery, Barnabás Gilicze, Matteo Lucchini, Mauro Nisoli, Fabio Frassetto, Fabio Samparisi, Luca Poletto, Katalin Varjú, Subhendu Kahaly, Balázs Major
Publikováno v:
APL Photonics, Vol 8, Iss 5, Pp 056105-056105-14 (2023)
We present the experimental realization of spectrally tunable, ultrashort, quasi-monochromatic extreme ultraviolet (XUV) pulses generated at 100 kHz repetition rate in a user-oriented gas high harmonic generation beamline of the Extreme Light Infrast
Externí odkaz:
https://doaj.org/article/89cc68405ab042198ce023cf342724a0
Autor:
Katalin Varju, Lewis H. Ryder
Publikováno v:
Physics Letters A. 250:263-269
The Dirac Hamiltonian is calculated in the Schwarzschild space and compared to the analogous one in a uniformly accelerating Minkowski frame yielding a test of the equivalence principle. Comparing these Hamiltonians, we see that the flat-space energy
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::023633d346b1775cf20b7a6735b4c709
https://doi.org/10.1016/s0375-9601(98)00831-7
https://doi.org/10.1016/s0375-9601(98)00831-7
Autor:
Peng Ye, Lénárd Gulyás Oldal, Tamás Csizmadia, Zoltán Filus, Tímea Grósz, Péter Jójárt, Imre Seres, Zsolt Bengery, Barnabás Gilicze, Subhendu Kahaly, Katalin Varjú, Balázs Major
Publikováno v:
Ultrafast Science, Vol 2022 (2022)
High-repetition rate attosecond pulse sources are indispensable tools for time-resolved studies of electron dynamics, such as coincidence spectroscopy and experiments with high demands on statistics or signal-to-noise ratio, especially in the case of
Externí odkaz:
https://doaj.org/article/be6da22064d44809a5220ef1ce50a407
Autor:
Katalin Varju, Lewis H. Ryder
Publikováno v:
Physical Review D. 62
The most accurate description possible of the behavior of a spin 1/2 particle in Earth's gravitational field is obtained by writing the Dirac equation in Kerr spacetime. Approximate methods, such as the use of rotating frames in Schwarzschild spaceti
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c9de12689d150751f43301927b16f414
https://doi.org/10.1103/physrevd.62.024016
https://doi.org/10.1103/physrevd.62.024016
Akademický článek
Tento výsledek nelze pro nepřihlášené uživatele zobrazit.
K zobrazení výsledku je třeba se přihlásit.
K zobrazení výsledku je třeba se přihlásit.
Autor:
Tamás Csizmadia, Lénárd Gulyás Oldal, Peng Ye, Szilárd Majorosi, Paraskevas Tzallas, Giuseppe Sansone, Valer Tosa, Katalin Varjú, Balázs Major, Subhendu Kahaly
Publikováno v:
New Journal of Physics, Vol 23, Iss 12, p 123012 (2021)
We investigate the electron quantum path interference (QPI) effects during high harmonic generation in atomic gas medium driven by ultrashort chirped laser pulses. To achieve that, we identify and vary the different experimentally relevant control pa
Externí odkaz:
https://doaj.org/article/a782f9754d3a4eac8f4552be5c424144