Open AccessControlling pulse duration of two-pulse laser to enhance alignment of N2 molecules
Author(s) -
Yang Zeng-Qiang,
Xiaoxin Zhou
Publication year - 2008
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.57.4099
Subject(s) - pulse (music) , pulse duration , laser , femtosecond pulse shaping , multiphoton intrapulse interference phase scan , optics , bandwidth limited pulse , rotor (electric) , duration (music) , molecule , ultrashort pulse , materials science , physics , acoustics , quantum mechanics , detector
The method of enhancing the alignment of N2 molecules by controlling pulse duration of two-pulse laser is proposed. The time-dependent Schrdinger equation of the rigid rotor model of N2 molecule in the two-pulse laser is solved numerically by using the pseudospectral method. The degree of alignment for N2 molecules by laser pulses with different durations is calculated. The results show that the alignment can be optimized by selecting the pulse duration and the delay time between the two pulses.