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Issue No:6, Vol.3 |
June - 2010 |
ISSN: 0974-5645 |
| RESEARCH ARTICLES |
Viewers & PDF |
| 10. Non-linear optical properties of a-glycine single crystals by Z-Scan technique. T. Sivanesan, V. Natarajan and S. Pandi (2010) Indian J.Sci.Technol. Vol. 3, Issue 6, pp: 653-655. Domain site: http://www.indjst.org. |
 
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- Abstract
Single crystals of α-Glycine up to the size of 4 x 4x1 mm3 were grown for optical characterization by the solution growth
method using methanol as a solvent. The crystal structure was studied by X-ray diffraction. The UV–visual absorption
spectra indicate a good transparency between 200 and 1400 nm. The non-linear refractive index n2 and susceptibility χ (3)
have been measured through the Z-scan technique. α-Glycine exhibits saturation absorption and self-focusing
performance. Non-linear absorption co-efficient β is determined as 2.4763 x 10 – 5 cm/W. Non-linear refractive index n2
measured at the wavelength of 632.8 nm is calculated as 2.14435 x 10-8 cm2/W. The real and imaginary pars of χ (3) have been
measured at 632.8 nm and found to be 7.9732 x 10-07 esu and 8.0018 x 10-07 esu, respectively. The measured 3rd order
non-linear properties confirm its suitability for non-linear optical devices such as optical switching device.
- Keywords: Single XRD; α –Glycine; UV spectrum; Z-scan, crystal growth
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