Dispersion of photoelastic constants in doped KDP crystals

Chemical Etching Studies of Pure and Amino acids Doped KDP Crystals

Potassium dihydrogen phosphate (KDP) and amino acids are non-linear optical material used for laser frequency conversion. The pure and amino acids (L-arginine, L-lysine and L-alanine) doped KDP crystals were grown by slow solvent evaporation technique. The amino acid doping was confirmed by CHN analysis, paper chromatography and FTIR studies. The (100) face of pure and amino acids doped KDP cry...

Study on Optical Constants and Refractive Index Dispersion of Neutral red Doped Polymer Film

Problem statement: The some optical constants polymer thin film with red dye 3-amino-7dimethylamino-2-methyl phenazine (NR) as the guest material and Polyvinylpyrrolidone (PVP) as the host material were prepared by adulteration and spin-coating methods. Approach: The values of some important parameters (refractive index n, extinction coefficient K and dielectric constant ε∞) of polymer thin fil...

Acoustic phonon absorption and dispersion in hydroxyl-doped KCl crystals at low temperatures

2014 The acoustic properties of hydroxyl-doped KCl crystals have been measured by Brillouin scattering in the temperature range 1 to 50 K. For samples with OHcontent higher than 200 ppm, two features dominate the temperature dependence of the attenuation, namely an absorption peak around 20 K and a strong increase of the damping with decreasing temperature below 5 K. The results bear some simil...

Pressure Study on Mn Doped KDP System under Hydrostatic Pressure

High Pressure Raman scattering measurements of KDP:Mn were performed at room temperatures. The X-ray powder diffraction patterns taken at room temperature by Rietveld refinement showed that doped samples of KDP-Mn have the same tetragonal structure of a pure KDP crystal, but with a contraction of the crystalline cell. The behavior of the Raman spectra, in particular the emergence of a new modes...

A comparison of dispersion and Markov constants