TGS：Cr^（6＋）晶体的热释电性质及光折变效应

Pyroelectic Properties and Photorefractive Effect of TGS:Cr￣(6+) Crystals

采用降温法生长出了ＴＧＳ：Ｃｒ￣（６＋）单晶。测定了晶体结构、光谱特性和热释电性质。研究表明，该晶体存在高的内偏压场和光折变效应。

TGS:Cr￣(6+)single crystals have been grown by the cooling temperature method.The dielectric and pyroelectric properties of TGS: Cr￣(6+) crystals were measured.The pyroelectric figure of merit of this crystal is the same as pure TGS crystal.Higher internal bias field E_b of this crystal is found by measuring hysteresis loop.The transmission spectrum of TGS:Cr￣(6+) crystal is different from pure TGS crystal in the visible region,The phase grating have been observed by four waves mixing diffraction experiment.