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Photoacoustic study of the thermal and optical properties of hippuric acid
Author(s) -
Ramachandran E.,
Raji P.,
Ramachandran K.,
Natarajan S.
Publication year - 2006
Publication title -
crystal research and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.377
H-Index - 64
eISSN - 1521-4079
pISSN - 0232-1300
DOI - 10.1002/crat.200510609
Subject(s) - hippuric acid , photoacoustic spectroscopy , thermal diffusivity , characterization (materials science) , absorption (acoustics) , absorption spectroscopy , materials science , photoacoustic effect , photoacoustic imaging in biomedicine , spectroscopy , analytical chemistry (journal) , second harmonic generation , powder diffraction , thermal conductivity , chemistry , optics , crystallography , nanotechnology , composite material , organic chemistry , thermodynamics , laser , urine , biochemistry , physics , quantum mechanics
Photoacoustic spectroscopy (PAS) is a recently developed, non‐destructive testing (NDT) tool, used for analyzing the physical properties of materials. This method is used here to determine the thermal diffusivity and conductivity of the gel‐grown single crystals of hippuric acid, a minor constituent of urinary calculi and also a non‐linear optical (NLO) material. Optical absorption of the specimen was studied using its PA spectrum and compared with UV‐visible absorption spectra. Second harmonic generation (SHG) conversion efficiency was also carried out. Characterization of the crystals was made using X‐ray powder diffraction and density determination. (© 2006 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)