𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Growth and high frequency dielectric study of pure and thiourea doped KDP crystals

✍ Scribed by S. S. Hussaini; N. R. Dhumane; G. Rabbani; P. Karmuse; V. G. Dongre; M. D. Shirsat

Publisher
John Wiley and Sons
Year
2007
Tongue
English
Weight
168 KB
Volume
42
Category
Article
ISSN
0232-1300

No coin nor oath required. For personal study only.

✦ Synopsis

Abstract

Non linear optical (NLO) materials have acquired new significance with the advent of a large number of devices utilizing solid‐state laser sources. Several NLO materials have been used for this kind of technological applications. The Potassium di‐hydrogen phosphate (KDP) one of NLO material having superior non linear optical properties has been exploited for variety of applications. In the present investigation we have grown KDP crystals from aqous solution with thiourea, an organic non linear optical material. We could enhance the SHG efficiency of thiourea doped KDP crystal. It was 1.99 times more that of pure KDP. We observed more enhancements in nonlinearity for low concentration of thiourea.The crystal structure and cell parameters of grown crystal were determined from Powder XRD.The incorporation of thiourea in the grown crystals was qualitatively analyzed from FT‐IR study. The absorption spectra of pure and thiourea doped KDP crystal reveal that thiourea doped KDP crystals would be a better nonlinear optical (NLO) material for second harmonic generation (SHG) than pure KDP. The thermal decomposition and weight loss of pure and thiourea doped KDP crystal was observed by thermogravimetric (TGA) analysis and Differential Scanning Calorimetry (DSC). The high frequency dielectric study of pure KDP crystal, thiourea doped KDP crystals and organic additive thiourea was carried out using X‐band at frequency 8GHZ and 12GHZ by transmission line wave guide method. We observed low dielectric constant of thiourea doped KDP crystal when it is doped with 2mole% of thiourea. (Β© 2007 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)

πŸ“œ SIMILAR VOLUMES

Growth and properties of Ba-doped KDP cr
Growth and properties of Ba-doped KDP crystals
✍ Guozong Zheng; Genbo Su; Xinxin Zhuang; Xiuqin Lin; Zhengdong Li πŸ“‚ Article πŸ“… 2008 πŸ› John Wiley and Sons 🌐 English βš– 291 KB πŸ‘ 1 views

## Abstract KDP crystals were rapidly grown from solution doped with different Ba^2+^ concentrations. The effects of Ba^2+^ on the growth rate, morphology and quality of KDP crystals were discussed. Significant changes in shapes and volume of the grown crystals have been observed. During the growth

Growth and characterization of L-alanine
Growth and characterization of L-alanine doped KDP crystals
✍ K. D. Parikh; D. J. Dave; B. B. Parekh; M. J. Joshi πŸ“‚ Article πŸ“… 2010 πŸ› John Wiley and Sons 🌐 English βš– 216 KB πŸ‘ 2 views

## Abstract Potassium Dihydrogen Phosphate (KDP) is an excellent inorganic nonlinear optical (NLO) material with different device applications. Most of amino acids possess NLO property; therefore, it is of interest to dope them in KDP crystals. In the present study, amino acid L‐alanine doped KDP c

Structural and microhardness studies of
Structural and microhardness studies of pure and thiourea doped glycine phosphite single crystal
✍ R. Ezhil Vizhi; S. Kalainathan; G. Baghavan Narayana πŸ“‚ Article πŸ“… 2008 πŸ› John Wiley and Sons 🌐 English βš– 138 KB πŸ‘ 1 views

## Abstract Ferroelectric Glycine Phosphite (GPI) crystal have been grown from aqueous solution employing the slow cooling technique. As the crystal solubility in water depends on temperature, single crystals were grown. Transparent, colourless crystals with habit morphology weighing about 8g were

Optical and dielectric studies on pure a
Optical and dielectric studies on pure and Ni2+, Co2+ doped single crystals of bis thiourea cadmium chloride
✍ R. Uthrakumar; C. Vesta; C. Justin Raj; S. Dinakaran; Rani Christhu Dhas; S. Jer πŸ“‚ Article πŸ“… 2008 πŸ› John Wiley and Sons 🌐 English βš– 160 KB πŸ‘ 2 views

## Abstract Good quality single crystals of Ni^2+^, Co^2+^ ions doped Bisthiourea Cadmium Chloride (BTCC) are some of the excellent and efficient non‐linear optical materials grown from aqueous solution by slow evaporation method. The lattice parameters of the grown crystals are determined by singl