Field-free molecular orientation by a multicolor laser field

Journal Article · Tue Feb 15 04:00:00 EST 2011 · Physical Review. A

DOI:https://doi.org/10.1103/PHYSREVA.83.023416· OSTI ID:21537182

Shian, Zhang; Hui, Zhang; Tianqing, Jia; Zugeng, Wang; Zhenrong, Sun ^[1]; Junhui, Shi ^[2]

---

1. State Key Laboratory of Precision Spectroscopy, and Department of Physics, East China Normal University, Shanghai 200062 (China)
2. Department of Chemistry, Princeton University, Princeton, New Jersey 08544 (United States)

We theoretically study the field-free molecular orientation by a multicolor laser field with a superposition of the fundamental wave and its harmonics. It is shown that the molecular orientation will be up to a maximum value pumped by the four-color laser field at the same laser intensity, and the molecular orientation direction and its degree can be controlled by varying the carrier-envelope phase of the four-color laser field. It is also indicated that the molecular orientation induced by a four-color laser field can be tremendously enhanced by applying another in-phase or out-phase four-color laser field at the beginning of the rotational wave-packet rephasing or the end of the rotational wave-packet dephasing.

• OSTI ID: 21537182
• Journal Information: Physical Review. A, Journal Name: Physical Review. A Journal Issue: 2 Vol. 83; ISSN 1050-2947; ISSN PLRAAN
• Country of Publication: United States
• Language: English

Related Subjects

74 ATOMIC AND MOLECULAR PHYSICS
COLOR
ELECTROMAGNETIC RADIATION
HARMONICS
LASER RADIATION
MOLECULES
OPTICAL PROPERTIES
ORGANOLEPTIC PROPERTIES
ORIENTATION
OSCILLATIONS
PHYSICAL PROPERTIES
RADIATIONS
WAVE PACKETS