Coherence, ionization, and recombination in a microwave field

Autor:	Vincent Carrat, E. Magnuson, Thomas Gallagher
Rok vydání:	2015
Předmět:	Physics law Ionization Astrophysics::Cosmology and Extragalactic Astrophysics Physics::Atomic Physics Atomic physics Laser Atomic and Molecular Physics and Optics Recombination Excitation Microwave law.invention Coherence (physics)
Zdroj:	Physical Review A. 92
ISSN:	1094-1622 1050-2947
DOI:	10.1103/physreva.92.063414
Popis:	An amplitude-modulated near-infrared laser pulse synchronized to a 14-GHz microwave field is used to excite atoms to the vicinity of the ionization limit at specific phases of the microwave field. When the laser is tuned above and below the ionization limit, phase-dependent modulation is observed in the recombination and ionization, respectively. The phase-dependent modulation is 10% of the total excitation, far greater than the 0.1% modulation observed with single-picosecond laser pulse excitation, and in agreement with calculations based on coherent excitation over several microwave cycles [Phys. Rev. Lett. 95, 013001 (2005)].
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::8a4373cc224464b1a783887461ca50a0 https://doi.org/10.1103/physreva.92.063414 Zobrazit plný text záznamu