ALPS Poster Session 1

[ALPSp1-10] Long term mirror test for high average and high energy pulse lasers

*Ryotaro Takahashi¹, Yurina Michine¹, Hitoki Yoneda¹ (1. The University of Electro-Communications)

We have conducted long-term mirror tests for high power laser optics. We evaluated several types of coating mirrors. After optimizing the pre-illumination, we achieved damage thresholds beyond 250 J/cm² for 1μm and 90 J/cm² for 0.53μm.