Crystal growth and nonlinear optical properties of sodium D-isoascorbate monohydrate

Rao, Raghavendra K and Bhat, HL and Elizabeth, Suja (2013) Crystal growth and nonlinear optical properties of sodium D-isoascorbate monohydrate. In: CRYSTENGCOMM, 15 (33). pp. 6594-6601.

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Abstract

Optical quality single crystals of sodium D-isoascorbate monohydrate were grown by a slow cooling technique. The crystal possesses a bulky prismatic morphology. Thermal analyses indicate that the crystals are stable up to 125 degrees C. The optical transmission window ranges from 307 nm to 1450 nm. The principal refractive indices have been measured employing Brewster's angle method. The crystallographic and the principal dielectric axes coincide with each other such that a lies along Z, b along X and c along Y. The optic axis is oriented 58 degrees (at 532 nm) to the crystallographic a axis in the XZ plane and the crystal is negative biaxial. Type 1 and type 2 phase matching curves are generated and experimentally verified. No polarization dependence of the light absorption was observed confirming the validity of Kleinman's symmetry conjecture, leading to a single nonvanishing nonlinear tensor component. According to Hobden's classification the crystal belongs to class 3. The crystal also exhibits second order noncollinear conic sections. The single shot and multiple shot surface laser damage thresholds are determined to be 32.7 GW cm(-2) and 6.5 GW cm(-2) respectively for 1064 nm radiation.

Item Type:	Journal Article
Publication:	CRYSTENGCOMM
Publisher:	ROYAL SOC CHEMISTRY
Additional Information:	Copyright of this article is belongs to ROYAL SOC CHEMISTRY
Department/Centre:	Division of Physical & Mathematical Sciences > Physics
Date Deposited:	26 Sep 2013 06:02
Last Modified:	26 Sep 2013 06:02
URI:	http://eprints.iisc.ac.in/id/eprint/47328

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