【摘要】 <正> ADP晶体为负单轴晶体,实验采用第Ⅰ类(00-e)90°相位匹配。晶体作45°-Z切割,通光面为(110)面,晶体尺寸为76×10×10毫米~3。通光端面均以光胶方法贴上φ9毫米、厚度1毫米的石英片用以保护端面。晶体置于晶体室中,其温度可以调节和严格控制。晶体室结构见图1。晶体嵌在紫铜块中,晶体与紫铜块间填塞金属绵使晶体与铜块之间有良好的热传导,并使整块晶体有较好的温度均匀更多还原

【Abstract】 The performance of the ADP crystal for extracavity 90℃ phase-matched SHG of Ar+ lasers is reported. The phase-matching temperature was -11.61℃, and the efficiency 3.2%. The SHG power of 5.8 mw was obtained at the fundamental power of 1.8 w. The fluctuation of SH power was less than 5% during one hour operation.更多还原