[25a-D316-1~10] 3.6 Ultrashort-pulse and high-intensity lasers

[25a-D316-8] Stabilization of the relative phase between a counter-rotating circularly polarized two-color laser pulses

〇Shinichirou Minemoto¹, Jun Noshita², Naoki Hara², Hirofumi Sakai¹ (1.Univ. Tokyo, 2.Sch. Sci., Univ. Tokyo)

Keywords:control of molecular direction, stabilization of relative phase, two-color laser pulse

In order to produce molecular ensemble with macroscopic threefold symmetry, we developed a technique to stabilize the relative phase of counter-rotating circularly polarized two-color laser pulses. With this technique, we succeeded to stabilize the relative phase between the fundamental and second harmonics from a nanosecond Nd:YAG laser within ±5 degrees. This accuracy corresponds to ±2 degrees of the direction of the trajectory of electric fields created by the counter-rotating circularly polarized two-color laser pulses.