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磷酸氧钛钾

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磷酸氧钛钾
别名 KTP
识别
CAS号 12690-20-9  ✓
PubChem 102601599
ChemSpider 50645143
SMILES
性质
化学式 KO5PTi
摩尔质量 197.94 g·mol−1
外观 无色固体
密度 3.026 g/cm3
若非注明,所有数据均出自一般条件(25 ℃,100 kPa)下。

磷酸钛氧钾(KTiOPO4,KTP)晶体是众所周知的性能非常优秀的非线性光学晶体美国杜邦公司(Dupont)科学家首先发现其非线性光学性质并将其应用[1]。此后美国Airtron(后并入美国军工集团Northrop Grumman公司)[2]贝尔实验室[3]中国科学院物理所[4]、桂林矿产地质研究院(桂林百锐光电技术有限公司)[5]、美国Advanced Photonic Crystals公司[6]的科学家也生长出了大尺寸的水热KTP晶体。

普通助熔剂法(熔盐法)KTP始终存在着挥之不去的“灰迹”和电导率高等问题[7]。与普通KTP晶体相比,水热法KTP晶体因为是在封闭的体系中生长,避免了外界杂质的影响,晶体中过渡元素如Fe、Cr、Ni、Mn、W、Al等的含量均低于6ppm,故晶体具有吸收率低,抗灰迹性能强的特点。其弱吸收率为:<1000ppm/cm @ 532mm ,<150ppm/cm @1064mm,[8]优于助溶剂法KTP。因此具有高抗灰迹的性能。可用于高功率的激光。

另外,水热法KTP晶体呈现单畴性、光学均匀性△n<1×10-5、电导率为10-10/Ω·cm量级,比普通助熔剂法KTP低3个量级,非常适合于激光电光调Q开关和PPKTP器件,有关这方面的研究工作正在进行中,并已取得进展。

参考资料

  1. ^ F.C. Zumsteg, J.D. Bierlin, T.E. Gier, J. Appl. Phys. 47-11 (1976) 4980.
  2. ^ 存档副本. [2012-09-13]. (原始内容存档于2011-10-16). 
  3. ^ R.A. Laudise, R.J. Cava, A.J. Caporaso, J. Crystal Growth 74 (1986)275.
  4. ^ Jia Shou-quan, Niu Hong-da, Tan Jin-ge, Xu Yan-ping, Tao ying, J. Crystal Growth 99 (1990) 900.
  5. ^ http://www.brxtal.com/cn/picshow.asp?id=29&fid=61&lmid=62页面存档备份,存于互联网档案馆); Chang-long Zhang, et.al, J. Cryst. Growth 292 (2006) 364–367;7. Chang-long Zhang, et.al, J. Cryst. Growth 2008, 310 (7-9), 2010–2014.
  6. ^ 存档副本. [2012-09-13]. (原始内容存档于2012-08-05). 
  7. ^ Scripsick, M. P.; et.al. Appl. Phys. Lett. 1995, 66 (25),3428–3430.; Hu, X.B.et.al, Cryst. Growth 2003, 247 (1-2), 137–140.
  8. ^ Xiaomao Li, Zhanggui Hu, Tianye Lu, Changlong Zhang. Study on the weak absorption of potassium titanyl phosphate crystals. Optical Engineering. 51(3) (2012) 039001-039001-6
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磷酸氧钛钾
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