Yoshii Kazumichi, Miyaji Godai, Miyazaki Kenzo
Advanced Laser Science Research Section, Institute of Advanced Energy, Kyoto University, Kyoto 611-0011, Japan.
Phys Rev Lett. 2008 Oct 31;101(18):183902. doi: 10.1103/PhysRevLett.101.183902. Epub 2008 Oct 28.
High-order harmonic generation from coherently rotating N2 and O2 molecules has been observed for different alignment angles in a pump and probe experiment using femtosecond laser pulses. The results obtained are in excellent agreement with those calculated using a recently developed theory, which represent the characteristic properties predicted for angle-dependent harmonic generation. It is shown that polarization geometry and alignment distribution play essential roles in potential applications to probe electronic structure and dynamics of molecular systems.
在使用飞秒激光脉冲的泵浦-探测实验中，已观察到在不同取向角下，相干旋转的N₂和O₂分子产生的高次谐波。所得结果与使用最近发展的理论计算的结果非常吻合，该理论代表了角相关谐波产生所预测的特性。结果表明，偏振几何结构和取向分布在探测分子系统的电子结构和动力学的潜在应用中起着至关重要的作用。
