Zobrazeno 1 - 10
of 13
pro vyhledávání: '"P. V. Pokasov"'
Publikováno v:
Optics and Spectroscopy. 129:1063-1067
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::93b90bb922d4004b83449c2424e1f07d
https://doi.org/10.1134/s0030400x21080038
https://doi.org/10.1134/s0030400x21080038
Publikováno v:
Quantum Electronics. 48:464-467
We demonstrate the possibility of measuring the forbidden 21S0 – 23S1 transition frequency (λ = 1557 nm) of a helium atom by the method of stimulated Raman scattering through the intermediate 23P1 level. Singlet (21S0) and triplet (23S1) states ha
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c56d28d6b90f22298aa54e4ea6c4f07f
https://doi.org/10.1070/qel16568
https://doi.org/10.1070/qel16568
Publikováno v:
Journal of Physics: Conference Series. 2067:012002
Two versions of the numerical calculation of the ground state energy of the helium atom are compared. First, the nonrelativistic Schrödinger equation with a fixed nucleus is solved, and then the perturbation theory is used. Another version solves th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e046293046cae60df0ddbd2f13205cca
https://doi.org/10.1088/1742-6596/2067/1/012002
https://doi.org/10.1088/1742-6596/2067/1/012002
Autor:
S V Chepurov, K A Bikmukhametov, N. I. Dmitrieva, Aleksandr K Dmitriev, A A Lugovoi, P V Pokasov, D V Basnak
Publikováno v:
Quantum Electronics. 40:733-738
A method for measuring the carrier envelope offset (CEO) frequency of the femtosecond frequency comb with a bandwidth of less than one octave by using a Fabry—Perot interferometer is proposed and experimentally demonstrated.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ccaf8232e0ef306956614fecafa673d0
https://doi.org/10.1070/qe2010v040n08abeh014354
https://doi.org/10.1070/qe2010v040n08abeh014354
Autor:
P V Pokasov, E V Baklanov
Publikováno v:
Quantum Electronics. 33:383-400
A review is presented of the state of the art in a new direction in quantum electronics based on the use of femtosecond lasers for precision frequency measurements and the development of optical frequency and time standards.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d7c2ef7c32fe2ccb1ecf6eeff226c5ba
https://doi.org/10.1070/qe2003v033n05abeh002423
https://doi.org/10.1070/qe2003v033n05abeh002423
Autor:
Th. Udem, Harald Schnatz, J. von Zanthier, R. Holzwarth, S. N. Bagayev, A. Yu. Nevsky, F. Riehle, Herbert Walther, Theodor W. Hänsch, P. V. Pokasov, J. Reichert, Mikhail N Skvortsov
Publikováno v:
Optics Communications. 192:263-272
We present a frequency comparison and an absolute frequency measurement of two independent I2-stabilized frequency-doubled Nd:YAG lasers at 532 nm, one set up at the Institute of Laser Physics, No vosibirsk, Russia, the other at the Physikalisch-Tech
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d6924295affd858d61b6f5e5faa76888
https://doi.org/10.1016/s0030-4018(01)01190-7
https://doi.org/10.1016/s0030-4018(01)01190-7
Autor:
Michel Abgrall, M. Niering, Theodor W. Hänsch, André Clairon, Giorgio Santarelli, Christophe Salomon, Ronald Holzwarth, P. Laurent, P. V. Pokasov, Martin Weitz, Pierre Lemonde, Th. Udem, J. Reichert
Publikováno v:
Physical Review Letters. 84:5496-5499
We report on an absolute frequency measurement of the hydrogen $1S\ensuremath{-}2S$ two-photon transition in a cold atomic beam with an accuracy of 1.8 parts in ${10}^{14}$. Our experimental result of 2 466 061 413 187 103(46) Hz has been obtained by
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6a685d36b1a7ac27eb1842b96502c6c0
https://doi.org/10.1103/physrevlett.84.5496
https://doi.org/10.1103/physrevlett.84.5496
Autor:
Ronald Holzwarth, Harald Schnatz, Fritz Riehle, Alexander Nevsky, Herbert Walther, J. von Zanthier, Theodor W. Hänsch, J. Reichert, Mikhail N Skvortsov, S. N. Bagayev, P. V. Pokasov, T. Udem
Publikováno v:
Conference on Precision Electromagnetic Measurements. Conference Digest. CPEM 2000 (Cat. No.00CH37031).
We have determined the frequency of the a/sub 1/ component of the P(54)32-0 transition of molecular iodine with an estimated relative standard uncertainty below 1/spl middot/10/sup -11/ using a phase-coherent optical frequency chain from the CH/sub 4
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b995f0d10ccd8ae18004e007944b0be6
https://doi.org/10.1109/cpem.2000.851191
https://doi.org/10.1109/cpem.2000.851191
Autor:
Thomas Udem, André Clairon, Michel Abgrall, P. V. Pokasov, Marcus Zimmermann, M. Niering, Giorgio Santarelli, Ronald Holzwarth, Christophe Salomon, J. Reichert, A.K. Dmitriyev, S. N. Bagayev, Theodor W. Hänsch, P. Laurent, Pierre Lemonde
Publikováno v:
Frequency Standards and Metrology.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::db3089e5e3d65b47221bf450fe7199b7
https://doi.org/10.1142/9789812777713_0065
https://doi.org/10.1142/9789812777713_0065
Autor:
Harald Schnatz, Joachim von Zanthier, Ronald Holzwarth, Theodor W. Hänsch, Herbert Walther, Thomas Udem, Mikhail N Skvortsov, Alexander Nevsky, Fritz Riehle, S. N. Bagayev, Marcus Zimmermann, P. V. Pokasov
Publikováno v:
Frequency Standards and Metrology.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::36751377bfe76a17a510b8da4539ef36
https://doi.org/10.1142/9789812777713_0068
https://doi.org/10.1142/9789812777713_0068