Abstract: In this study, the Z-scan technique was used to examine the thermal lens effect in turbid media containing micro-spheres suspended in water. The scattering coefficients of the turbid media were varied from 10 to 100 cm$+$MIN@1$/. The experimental results suggested that the nonlinear changes in the refractive index of the scattering medium induced by high power laser heating could significantly impact the propagation of laser beam through the scattering medium. Presence of thermally-induced nonlinear changes in refractive index of tissue during high power laser irradiation may significantly alter the distribution of laser light in tissue during laser therapy. !6
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机译：摘要：在这项研究中，Z扫描技术用于检查包含微球悬浮在水中的浑浊介质中的热透镜效应。混浊介质的散射系数在10到100 cm $ + $ MIN @ 1 $ /之间变化。实验结果表明，高功率激光加热引起的散射介质折射率的非线性变化会显着影响激光束通过散射介质的传播。在大功率激光照射过程中，组织折射率的热诱导非线性变化可能会显着改变激光治疗过程中组织中激光的分布。 ！6
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