Abstract: It is found through theoretical analysis that,heat-lens effect arises only when the light is birefracted in photorefractive crystals.It is also point out that the lateral anisotropic temperature gradient is only one cause causing the heat-lens e
Abstract: It is found through theoretical analysis that,heat-lens effect arises only when the light is birefracted in photorefractive crystals.It is also point out that the lateral anisotropic temperature gradient is only one cause causing the heat-lens e
文摘:通过对光折变晶体的热透镜效应的理论分析发现，光通过光折变晶体时，只有在晶体发生双折射的前提下，才能发生热透镜效应.并指出，晶体内存在的由热效应引起的横向各向异性温度梯度仅是产生热透镜效应的一个方面，而“光阻”则是产生光折变晶体热透镜效应的另一个原因，从而丰富了光折变效应的内涵.