Birefringence, Photo luminous, Optical Limiting and Third Order Nonlinear Optical Properties of Glycinium Phosphite (GlP) Single Crystal: A potential Semi Organic Crystal for Laser and Photonics Applications

Glycinium Phosphite (GlP) has been synthesized and characterized successfully. The fluorescence spectrum of the compound showed one broad peak at 282 nm. Linear absorption value was calculated by Optical Limiting method. Birefringence study was carried out and the birefringence of the crystal is found to be depending on the wavelength in the entire visible region. Third order nonlinear optical property of the crystal was carried out by Z-Scan technique and non linear refractive index and third order susceptibility was calculated. Thermal stability of the crystal was found using TG and DTA thermal analyzer and the results shows that the crystals have good thermal stability. The crystal was also analyzed by photo conductivity analyzer to determine the optical conductivity of the crystal.亚磷酸甘氨酸鎓（Glycinium Phosphite，GlP）已成功合成并完成表征。该化合物的荧光光谱在282 nm处呈现一个宽峰。通过光限幅法计算得到其线性吸收值。开展了双折射特性研究，发现该晶体的双折射在整个可见光区域内随波长发生变化。采用Z扫描（Z-Scan）技术对晶体的三阶非线性光学性能进行了测试，并计算得到其非线性折射率与三阶极化率。借助热重（TG）与差热分析（DTA）热分析仪对晶体的热稳定性进行了表征，结果表明该晶体具备良好的热稳定性。此外，还通过光电导率分析仪对该晶体的光电导率开展了分析测定。