PMID: 12785893Jun 6, 2003Paper

Controlling vibrational wave packet motion with intense modulated laser fields

Physical Review Letters
Hiromichi NiikuraD M Villeneuve

Abstract

Intense, nonresonant laser fields produce Stark shifts that strongly modify the potential energy surfaces of a molecule. A vibrational wave packet can be guided by this Stark shift if the laser field is appropriately modulated during the wave packet motion. We modulated a 70 fs laser pulse with a period on the time scale of the vibrational motion (approximately 10 fs) by mixing the signal and idler of an optical parametric amplifier. We used ionization of H2 or D2 to launch a vibrational wave packet on the ground state of H2(+) or D2(+). If the laser intensity was high as the wave packet reached its outer turning point, the Stark shift allowed the molecule to dissociate through bond softening. On the other hand, if the field was small at this critical time, little dissociation was measured. By changing the modulation period, we achieved control of the dissociation yield with a contrast of 90%.

References

Feb 22, 1993·Physical Review Letters·A ZavriyevF Saline
Oct 9, 1995·Physical Review Letters·T SeidemanP B Corkum
Sep 16, 2000·Physical Review Letters·D M VilleneuveP B Corkum
Jun 28, 2002·Nature·Hiromichi NiikuraP B Corkum

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Citations

Feb 11, 2012·The Journal of Chemical Physics·Liqiang Feng, Tianshu Chu
Jul 6, 2014·The Journal of Chemical Physics·Simona ScheitKazuo Takatsuka
Jul 3, 2016·The Journal of Chemical Physics·Esben F Thomas, Niels E Henriksen
Aug 31, 2004·The Journal of Chemical Physics·T W SchmidtG Roberts
Mar 16, 2007·Physical Review Letters·J C Delagnes, M A Bouchene
Jul 4, 2012·Journal of Molecular Modeling·Li-Qiang Feng, Tian-Shu Chu
Jan 1, 2011·Faraday Discussions·William A BryanI D Williams
May 24, 2020·Nature Communications·M KübelA Staudte
Mar 5, 2009·Physical Review Letters·C B MadsenH Stapelfeldt
Aug 6, 2020·The Journal of Chemical Physics·Antonio J Garzón-Ramírez, Ignacio Franco
Aug 30, 2014·Physical Review Letters·Lauge ChristensenHenrik Stapelfeldt
Apr 20, 2004·Physical Review Letters·Hiromichi NiikuraP B Corkum
Dec 25, 2010·The Journal of Physical Chemistry. a·Dave TownsendAlbert Stolow
Nov 18, 2011·The Journal of Physical Chemistry. a·Simona ScheitKazuo Takatsuka
Oct 14, 2006·Science·Benjamin J SussmanAlbert Stolow

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