Research for Hybrid System comprised Laser Super Cavity and Off-Axis Parabolic Reflective mirrors toward International Linear Collider

我们研制了两种由多个高反射率反射镜组成的光腔。这些光腔可以积累NJ或UJ激光脉冲，并在腔内将脉冲能量提高约1000。此外，我们还可以在腔的中心制作几个微米腰或激光干涉图案(间距~500 nm)。基于激光脉冲与高能电子束之间的逆康普顿散射，我们在加速器实验装置(ATF)上测量微米级或亚微米级束流尺寸。紧凑型光腔激光线和高功率脉冲激光振荡器正在研制中。

We have developed two kind of optical cavities which consist of several high reflectivity mirrors. These optical cavities can accumulate nJ or uJ laser pulse and enhance the pulse energy by about 1000 in the cavity. Also, we can make several um waist or laser interference pattern (pitch～500nm) at the center of the cavity. Based on inverse Compton scattering between laser pulse and high energy electron beam, we are measuring micron beam size or sub-micron beam size at accelerator test facility (ATF). Compact optical cavity laser wire and high power pulse laser oscillator are under developing.