Synthesis, Growth, Thermal and Optical Properties of Urea L-Malic Acid (ULMA) NLO Crystal

  S.R. Niranjana,  J.Madhavan,  M.Victor Antony Raj

Urea L-malic acid, a new second order nonlinear optical crystal, has been synthesized and grown by slow evaporation solution growth technique. X-ray diffraction showed that the candidate material crystallized in monoclinic crystal system a noncentrosymmetric with P21 space group. Optical absorption spectra of the grown crystal revealed the lower cut-off wavelength and wide transparency of the grown crystal. Thermo gravimetric Analysis of the grown crystal shows three stages of weight loss and the decomposition temperature is found as 185°C. Second harmonic generation (SHG) efficiency of the grown crystal at a fundamental wavelength of 1064 nm is calculated as three times greater than that of KDP.

Keywords- ULMA, SHG, KDP

Unique Identification Number - IJEDR1602025
Page Number(s) - 157-160
Pubished in - Volume 4 | Issue 2 | April 2016
DOI (Digital Object Identifier) -   
Publisher - IJEDR (ISSN - 2321-9939)

  S.R. Niranjana,  J.Madhavan,  M.Victor Antony Raj,   "Synthesis, Growth, Thermal and Optical Properties of Urea L-Malic Acid (ULMA) NLO Crystal", International Journal of Engineering Development and Research (IJEDR), ISSN:2321-9939, Volume.4, Issue 2, pp.157-160, April 2016, Available at :http://www.ijedr.org/papers/IJEDR1602025.pdf