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001-es BibID:	BIBFORM090927
035-os BibID:	(cikkazonosító)013338 (Scopus)85090353450
Első szerző:	Tóth Attila (fizikus)
Cím:	Control of photodissociation with the dynamic Stark effect induced by THz pulses / A. Tóth, A. Csehi, G. J. Halász, Á. Vibók
Dátum:	2020
ISSN:	2643-1564
Megjegyzések:	We demonstrate how dynamic Stark control can be achieved on molecular photodissociation in the dipole limit, using single-cycle (full width at half maximum) laser pulses in the terahertz (THz) regime. As the laser-molecule interaction follows the instantaneous electric field through the permanent dipoles, the molecular potentials dynamically oscillate and so do the crossings between them. In this paper, we consider rotating- vibrating diatomic molecules (two-dimensional description) and reveal the interplay between the dissociating wave packet and the dynamically fluctuating crossing seam located in the configuration space of the molecules spanned by the R vibrational and ? rotational coordinates. Our showcase example is the widely studied lithium fluoride molecule for which the two lowest states are nonadiabatically coupled at an avoided crossing (AC); furthermore a low-lying pure repulsive state is energetically close. Optical pumping of the system in the ground state thus results in two dissociation channels: one indirect route via the AC in the ground state and one direct path in the state. We show that applying THz control pulses with specific time delays relative to the pumping can significantly alter the population dynamics, as well as the kinetic energy and angular distribution of the photofragments.
Tárgyszavak:	Természettudományok Fizikai tudományok idegen nyelvű folyóiratközlemény külföldi lapban folyóiratcikk photodissociation molecular photodissociation dynamic Stark effect
Megjelenés:	Physical Review Research. - 2 : 1 (2020), p. 1-9. -
További szerzők:	Csehi András (1986-) (fizikus) Halász Gábor J. (1961-) (fizikus) Vibók Ágnes (1962-) (fizikus)
Pályázati támogatás:	EFOP-3.6.2-16-2017-00005 EFOP GINOP-2.3.6-15-2015-00001 GINOP NKFIH K128396 Egyéb
Internet cím:	Szerző által megadott URL DOI Intézményi repozitóriumban (DEA) tárolt változat
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