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Melt growth of novel organic nonlinear optical material and its characterization

Authors
Journal
Materials Letters
0167-577X
Publisher
Elsevier
Publication Date
Volume
61
Issue
26
Identifiers
DOI: 10.1016/j.matlet.2007.03.059
Keywords
  • Organic Compound
  • Growth From Melt
  • Czochralski Method
  • Nonlinear Optic Materials

Abstract

Abstract Ethyl P-amino benzoate (EPAB) is also known as benzocaine was recently identified as new organic non linear optical (NLO) material which is having nearly six times higher SHG efficiency than that of KDP. Hence, growth of unidirectional EPAB crystal gains importance for phase matching studies and this is the first melt growth report of EPAB single crystal. Seeding with the microtube in the present technique eliminates the need for pre-grown seed and has more probability to grow bulk single crystal. Growth direction of the μT-Cz grown EPAB single crystals was identified as <100> using X-ray powder diffraction studies. Thermal properties and optical transparency of the grown material were analyzed by TG and DTA and UV-VIS spectroscopic studies respectively. Laser damage threshold study shows nearly five times high damage threshold than KDP.

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