Carrier-envelope phase-dependent field-free molecular orientation

Journal Article · Wed Jul 15 04:00:00 EDT 2009 · Physical Review. A

DOI:https://doi.org/10.1103/PHYSREVA.80.011401· OSTI ID:21313174

Chuancun, Shu; Kaijun, Yuan; Wenhui, Hu; Shulin, Cong ^[1]

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1. Department of Physics, Dalian University of Technology, Dalian 116024 (China)

We present a strategy to achieve carrier-envelope phase-dependent field-free molecular orientation with the use of carrier-envelope phase (CEP) stabilization and asymmetric few-cycle terahertz (THz) laser pulses. The calculations are performed on the LiH molecule by an exact solution of the full time-dependent Schroedinger equation including both the vibrational and the rotational degrees of freedom. Our calculations show that an efficient field-free molecular orientation can be obtained even at considerable temperatures. Moreover, we find a simple dependence of the field-free orientation on the CEP, which implies that the CEP becomes an important parameter for control of molecular orientation. More importantly, the realization of this scenario is appealing based on the fact that the intense few-cycle THz pulse with duration as short as a few optical cycles is available as a research tool.

• OSTI ID: 21313174
• Journal Information: Physical Review. A, Journal Name: Physical Review. A Journal Issue: 1 Vol. 80; ISSN 1050-2947; ISSN PLRAAN
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ASYMMETRY
CARRIERS
DEGREES OF FREEDOM
EXACT SOLUTIONS
LITHIUM HYDRIDES
ORIENTATION
PHOTON-MOLECULE COLLISIONS
PULSES
RADIATION PRESSURE
ROTATIONAL STATES
SCHROEDINGER EQUATION
TIME DEPENDENCE
VIBRATIONAL STATES