【摘要】 本文报道了用一块3cm厚Ⅱ类KDP晶体,在φ42mm口径、功率密度为0.27GW/cm~2的1.06μm激光束作用下,0.53μm倍频激光外部能量转换效率达到 61.5％的实验结果。实验和理论计算值符合较好。更多还原

【Abstract】 Usinga 3-cm-thick type II KDP crystal at input intensity of 0.27GW/cm2, an overall doubling energy conversion efficiency up to 61.5% has been achieved in our experiments. The 1.06μm laser beam has an aperture of 42mm and a divergence of ～0.5m rad. The temporal distribution of the intensity is nearly Gaussian. Experimental results are in agreement with theoretical calculation.更多还原