M. J. J. B. GILDA ET AL.
Copyright © 2012 SciRes. JMMCE
. NLO Test
The NLO property of pure 8-HQ and B8-HQ were
measured by Kurtz Perry’s NLO test. ANd-YAG laser
beam of wavelength 1064 nm of pulse width 8ns and
repetition rate of 10 Hz was made to incident on the sample.
Second harmonic radiation generated by 8-HQ and B8-
HQ were focused by a lens and collected by a photomul-
tiplier tube. In our study, KDP was taken as a reference
crystal. The output power intensity of pure 8-HQ was
found to be 0.75 times that of KDP  and B8-HQ was
found to be 0.85 times that of KDP single crystal.
Single crystals of pure 8-HQ and B8-HQ were grown
successfully by slow evaporation technique at room
onth. The non-Centro-symmetric nature of the crystals
was confirmed by XRD. The various functional groups
assigned to 8-HQ and B8-HQ were confirmed by FTIR
spectral analysis. The UV-Vis-NIR studies show that the
cut off wavelength of 8-HQ is at 350 nm and that of B8-
HQ is at 356 nm. The protons and the carbon bonded
network in these samples were elucidated by 1H and 13C-
NMR spectral analysis. Studies pertaining to TG/DTA,
SEM, Dielectric and Photoconductivity are in progress.
One of the authors (M. J. Jarald Brigit Gilda) is pleased
to acknowledge Prof. I. Sebasdiyar, Head of the depart-
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