Growth and characterization of a new nonlinear optical L-histidine acetate single crystals

被引：61
|
作者：
Madhavan, J.
Aruna, S.
Anuradha, A.
Premanand, D.
Vetha Potheher, I.
Thamizharasan, K.
Sagayaraj, P. [1 ]
机构：
[1] Loyola Coll, Dept Phys, Madras 600034, Tamil Nadu, India
[2] Sir Theagraya Coll, Dept Phys, Madras 600021, Tamil Nadu, India
来源：
OPTICAL MATERIALS | 2007年 / 29卷 / 09期
关键词：
NLO; single crystal; solution growth; thermal analysis; dielectric constant;
D O I：
10.1016/j.optmat.2006.04.013
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Bulk single crystals of L-histidine acetate dihydrate (LHA), a new organic nonlinear material was successfully grown from aqueous solution for the first time by slow evaporation method. The solubility of LHA was determined in water and good optical quality single crystal of dimensions up to 21 x 13 x 9 mm(3) was obtained. The grown crystals were characterized by X-ray diffraction, FTIR, UV-Vis-NIR, microhardness and DTA/TGA studies. The SHG efficiency is found to be higher than that of KDP crystal. The dielectric constant and dielectric loss of the crystal were studied as function of frequency and the results are discussed. Photoconductivity studies of LHA reveal its positive photoconducting nature. (C) 2006 Elsevier B.V. All rights reserved.
引用
收藏
页码：1211 / 1216
页数：6
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