Linear and Non Linear Optical Properties of a Zinc Doped L-Threonine Single Crystals
Linear and Non Linear Optical Properties of a Zinc Doped L-Threonine Single Crystals
Abstract: Growing non linear optical crystal is a fascinating research field today. Organic crystals have very high Second Harmonic Generation efficiency. In this view Zinc Sulphate doped L-Threonine single crystals were grown by slow evaporation technique in this study. The grown crystals were characterized optically by recording UV-Visible spectral study. The refractive index of the grown crystals are experimentally determined by Abbe’s refractometer. The optical band gap energy was determined from Tauc plot. The extinction coefficient, complex optical dielectric values and optical conductivity were also determined. A Cole-Cole plot were drawn between the complex dielectric. The single oscillator energy Eo and Ed also been determined. The SHG efficiency was also determined.
Key words: [UV –Visible, Tauc plot, band gap energy, optical dielectric constant , single oscillator energy and SHG efficiency]
- INTRODUCTION
The recent progress in laser micro mating, photo chemistry and super high resolution photo emission spectrometer urgently requires a coherent light wavelength below 200 nm in deep ultraviolet (deep UV) spectral region. Scientists in these areas are in favorite of all solid state lasers for their narrow band width, good beam quality and compact structure. The deep UV coherent light is generated through cascaded frequency conversion, using non linear optical (NLO) crystals[1]. To achieve this target, high performance deep energy consumption world, electrical energy consumption, energy consumption examples, energy consumption formula, energy consumption pdf, energy consumption in india, energy use definition, electricity consumption introduction are necessary. These crystals should possess relatively large second harmonic generation SHG coefficient and moderate birefringence [2]. The interesting physical properties of L-Threonine are high non linearity, high laser damage threshold and low refractive indices. The optical property displays some specific features such as wide transparency range in the Visible and UV spectral region and favors crystal hardness. These properties are useful for applications in the field of telecommunication, optical information storing devices and potential materials in laser system [3-6].