scholarly journals Studies on Structural, Spectral, and Optical Properties of Organic Nonlinear Optical Single Crystal: 2-Amino-4,6-dimethylpyrimidinium p-Hydroxybenzoate

2013 ◽  
Vol 2013 ◽  
pp. 1-7 ◽  
Author(s):  
S. Sudhahar ◽  
M. Krishna Kumar ◽  
A. Silambarasan ◽  
R. Muralidharan ◽  
R. Mohan Kumar
Keyword(s):  
Single Crystal ◽  
Grown Crystal ◽  
Second Harmonic ◽  
Visible Spectrum ◽  
Damage Threshold ◽  
Surface Damage ◽  
Second Harmonic Generation Efficiency ◽  
Cell Parameters ◽  
Infrared Spectral ◽  
Growth Method

2-Amino-4,6-dimethylpyrimidinium p-hydroxybenzoate (ADPHB), a novel organic material, was synthesized, and crystals were grown by slow evaporation solution growth method. The cell parameters and crystalline perfection of the grown crystal were studied by single crystal and powder X-ray diffraction analyses. The presence of various functional groups of the grown crystal was confirmed using Fourier Transform infrared spectral analysis. UV-Visible spectrum shows that ADPHB crystals have high transmittance in the range 305–900 nm. The refractive index and transient photoluminescence properties of the grown crystal were analyzed. The laser induced surface damage threshold, optical birefringence, and second harmonic generation efficiency of the grown crystal were studied.

scholarly journals Photoluminescence, laser damage threshold, optical transmittance, FTIR, mechanical, dielectric, thermal and XRD studies on Bis – Glycine hydrochloride single crystal

2016 ◽  
Vol 12 (11) ◽  
pp. 4523-4535
Author(s):  
L. Gobinathan ◽  
K. Boopathy
Keyword(s):  
Single Crystal ◽  
Grown Crystal ◽  
Second Harmonic ◽  
Damage Threshold ◽  
Optical Transmittance ◽  
Laser Damage Threshold ◽  
Laser Damage ◽  
Slow Cooling ◽  
Second Harmonic Generation Efficiency ◽  
Cell Parameters

Single crystals of Bis – glycine hydrochloride (BGHC) were grown from aqueous solution by means of slow evaporation and slow cooling techniques. Single crystal XRD study reveals that the grown BGHC crystallizes in orthorhombic system with  space group P212121 and  the obtained unit cell parameters are a = 5.32 Å, b = 8.10 Å and c = 18.01 Å. Powder X – ray diffraction pattern of grown BGHC has been indexed. Functional groups present in the BGHC crystals were identified by FT – IR spectral analysis. The transmission and absorption spectra for the grown BGHC crystal shows that the lower cut off wavelength lies at 235 nm. The photoluminescence spectrum of the grown crystal was recorded. Mechanical hardness of the grown BGHC was determined and Vickers microhardness hardness number was calculated. Laser damage threshold study was carried out for the grown crystal using Nd:YAG laser. The thermal stability of the grown crystal was investigated using thermogravimetric analysis and the grown crystal is thermally stable up to 198 °C. Particle size dependent second harmonic generation efficiency of the grown crystal was examined by Kurtz and Perry powder technique using 1064 nm laser.

STUDIES ON THE GROWTH, SPECTRAL, OPTICAL AND THERMAL PROPERTIES OF 4-NITROANILINE PICRATE SINGLE CRYSTALS

2013 ◽  
Vol 27 (32) ◽  
pp. 1350235 ◽  
Author(s):  
P. K. SIVAKUMAR ◽  
M. KRISHNA KUMAR ◽  
R. MOHAN KUMAR ◽  
R. KANAGADURAI
Keyword(s):  
Single Crystal ◽  
Grown Crystal ◽  
Second Harmonic ◽  
Damage Threshold ◽  
Threshold Value ◽  
Laser Damage Threshold ◽  
X Ray Diffraction ◽  
Plasma Energy ◽  
Ftir Spectral Analysis ◽  
Growth Method

In this paper, an organic 4-nitroaniline picrate (4NP) single crystal was grown by solution growth method. Single crystal X-ray diffraction study revealed that grown crystal belongs to orthorhombic system with Pbcn space group. The solid state constants such as plasma energy, Penn gap, Fermi energy and polarizability of 4NP crystal were determined theoretically. The functional groups of the grown crystals were confirmed qualitatively from FTIR spectral analysis. The thermal decomposition and melting point of the crystal were determined from thermogravimetric analysis. The optical absorption and cut-off wavelength of the crystal were determined from UV-visible study. The second harmonic generation (SHG) efficiency of the grown crystal was measured by Kurtz–Perry SHG test using Nd : YAG laser. The laser damage threshold value of the grown crystal was estimated by multi-shot method using 1064 nm laser.

Optical and Mechanical Studies on Methyl N- Phenylsuccinamate (MPS)

2012 ◽  
Vol 584 ◽  
pp. 51-55
Author(s):  
P. Vivek ◽  
P. Murugakoothan
Keyword(s):  
Grown Crystal ◽  
Second Harmonic ◽  
Damage Threshold ◽  
Surface Damage ◽  
Optical Transmittance ◽  
Generation Efficiency ◽  
Second Harmonic Generation Efficiency ◽  
Slow Evaporation Technique ◽  
Evaporation Technique ◽  
Mechanical Studies

Single crystal of organic material Methyl N- phenylsuccinamate (MPS) has been grown by the slow evaporation technique using methanol as a solvent. The crystal belongs to orthorhombic system with non centrosymmetric space group Pna21. Optical transmittance and second harmonic generation efficiency of the grown crystals have been studied by UV-vis-NIR spectrum and Kurtz powder technique respectively. The transmittance of MPS crystal has been used to calculate the refractive index (n), the extinction coefficient (k) and reflectance (R). The laser induced surface damage threshold for the grown crystal has been measured using Nd:YAG laser. The mechanical behaviour of the MPS crystal has also been analyzed.

scholarly journals Examination on Bulk Growth, Thermal, Mechanical, Dielectric, and Optical Properties of Li2na3 (So4)2 Single Crystal for Optoelectronic Applications

2019 ◽  
Vol 8 (4S2) ◽  
pp. 917-920
Keyword(s):  
Single Crystal ◽  
Grown Crystal ◽  
Second Harmonic ◽  
Optical Transmittance ◽  
Sodium Sulphate ◽  
Cutoff Wavelength ◽  
Second Harmonic Generation Efficiency ◽  
Mechanical Ability ◽  
Dielectric And Optical Properties ◽  
Growth Feature

Nonlinear optical lithium sodium sulphate hexahydrate (LSS) crystal of 17 mm x 14 mm x 12 mm dimension was harvested by temperature reducing method. The single crystal and powder X-ray diffraction investigation studies reveal the crystal system and crystalline characters of grown LSS crystal. The FT-IR spectrum of LSS crystal was recorded to confirm its functional constituents present in the synthesized compound. Mechanical ability of the grown LSS crystal was studied by Vicker’s hardness method. The etching pattern was recorded to identify the growth feature of the grown crystal. The parameters of dielectric constant and dielectric loss were calculated for the grown crystal. Thermal analysis was carried out on the crystal by employing thermogravimetric method. The cutoff wavelength and optical transmittance character and second harmonic generation efficiency of the LSS crystal were done by UV-Visible and Kurtz-Perry studies respectively.

scholarly journals Growth, Structural, Spectral, Thermal, Optical, Second and Third Order Nonlinear Optical Properties of Imidazolium Hydrogen Squarate (IHS) Single Crystal

2021 ◽  
Vol 9 (12) ◽  
pp. 1954-1965
Author(s):  
P. Gayathri
Keyword(s):  
Thermal Analysis ◽  
Single Crystal ◽  
Grown Crystal ◽  
Second Harmonic ◽  
Powder Xrd ◽  
Cutoff Wavelength ◽  
Third Order ◽  
Monoclinic System ◽  
Second Harmonic Generation Efficiency ◽  
X Ray

Abstract: Imidazolium hydrogen squarate (IHS) crystal has been grown by slow evaporation solution growth technique at room temperature. The lattice parameters of grown crystal were determined using single crystal X-ray diffraction data and compared with powder XRD. Single crystal XRD shows that the crystal crystallizes in monoclinic system with noncentrosymmetric space group Pc. The crystallinity of the grown crystal was confirmed by X-ray powder diffraction analysis. FT-IR and FT-RAMAN analyses qualitatively confirm the various functional groups present in the grown crystal. The 1H and 13C NMR spectra were recorded to establish the molecular structure. Thermal properties of title crystal were studied by thermogravimetric analysis (TGA) and differential thermal analysis (DTA). The UV-Vis-NIR transmission spectrum was recorded to find the band width of optical transmittance window and the lower cutoff wavelength. The optical band gap value of the material is evaluated to be 5.6 eV. The second harmonic generation efficiency was calculated by the Kurtz and Perry powder method using a Q-switched mode locked Nd: YAG laser emitting 1064 nm laser as source. Finally, Z-scan technique was employed to determine the nonlinear refractive index, nonlinear absorption coefficient and third-order NLO susceptibility to find suitability of the grown crystal in photonics and optoelectronics applications. Keywords: Single crystal; Powder XRD; thermal analysis; SHG; Z-scan studies

scholarly journals Growth, solvent effect, optical and electrical properties of sodium 4-hydroxybenzenesulfonate dihydrate

2019 ◽  
Vol 37 (2) ◽  
pp. 158-165
Author(s):  
Md. I. Zahid ◽  
A. Malarkodi ◽  
Sreenarayanan Meera ◽  
K. Meera ◽  
K.S. Joseph Wilson ◽  
...  
Keyword(s):  
Grown Crystal ◽  
Second Harmonic ◽  
Damage Threshold ◽  
Optical Excitation ◽  
Surface Damage ◽  
Optical Transmittance ◽  
Band Gap Energy ◽  
Transition Mechanism ◽  
Different Temperatures ◽  
Photoluminescence Studies

AbstractSingle crystal of sodium 4-hydroxybenzenesulfonate dihydrate (Na-4-HBS) was grown from an aqueous solution by slow evaporation method. Powder X-ray diffraction study was carried out to identify the lattice parameters of the crystal. FT-IR spectral analysis confirmed the existence of various functional groups in the compound. The optical transmittance, cut-off wavelength and band gap energy were estimated from the UV-Vis studies. Photoluminescence studies revealed the transition mechanism by optical excitation. The variation of dielectric properties and AC conductivity of the grown crystal with frequency was studied at different temperatures. Measurements of mechanical properties of Na-4-HBS were carried out to find the hardness of the material. The laser induced surface damage threshold and relative second harmonic generation nonlinear optical properties of the grown crystal were studied using Q-switched Nd:YAG laser.

SYNTHESIS, CRYSTAL GROWTH AND CHARACTERIZATION OF BIS DL-VALINE PICRATE SINGLE CRYSTAL FOR SECOND-ORDER NONLINEAR OPTICAL APPLICATIONS

2013 ◽  
Vol 01 (02) ◽  
pp. 1350004
Author(s):  
A. SILAMBARASAN ◽  
M. KRISHNA KUMAR ◽  
S. SUDHAHAR ◽  
A. THIRUNAVUKKARASU ◽  
R. MOHAN KUMAR ◽  
...  
Keyword(s):  
Single Crystal ◽  
Grown Crystal ◽  
Second Harmonic ◽  
Band Gap Energy ◽  
X Ray Diffraction ◽  
Monoclinic Crystal ◽  
Electronic Band ◽  
X Ray ◽  
Ftir Spectral Analysis ◽  
Growth Method

An organic compound Bis DL-Valine picrate (BDLVP) was synthesized successfully and single crystal was grown by slow evaporation solution growth method. The presence of functional groups in the compound was identified by FTIR spectral analysis. Single crystal X-ray diffraction study revealed that the grown crystal belongs to P21/n space group of monoclinic crystal system. Powder X-ray diffraction pattern was recorded to know the crystalline perfection of the grown crystal. The reaction mechanism, thermal decomposition stages and thermal stability of the grown crystal were studied by using TG/DTA analysis. From the UV-visible spectral study, the electronic band gap energy (Eg) of the grown crystal was found to be 2.43 eV. The second harmonic generation (SHG) efficiency of grown crystal was found to be 1.3 times higher than KDP crystal by using Kurtz powder SHG technique. The microhardness property of the grown crystal was examined by Vicker's microhardness test.

Crystal Growth, Optical, Dielectric, Thermal, Mechanical, Laser Damage Threshold and Second Harmonic Generation Characterization of Bis 2,5-Dimethylanilinium Sulfate Single Crystal

2018 ◽  
Vol 24 (8) ◽  
pp. 5785-5789
Author(s):  
A Mani ◽  
K Rajesh ◽  
P. Praveen Kumar
Keyword(s):  
Second Harmonic Generation ◽  
Single Crystal ◽  
Harmonic Generation ◽  
Grown Crystal ◽  
Second Harmonic ◽  
Damage Threshold ◽  
Spectroscopic Studies ◽  
Laser Damage Threshold ◽  
Laser Damage ◽  
Monoclinic System

Single crystals of bis 2,5-dimethylanilinium sulfate (bis 2,5-DAS) were grown by slow evaporation solution growth technique at room temperature. The crystalline nature of the grown crystal was confirmed by the single crystal X-ray data. Bis 2,5-DAS crystal was found to crystallize in monoclinic system with non-centrosymmetric space group Cc. The various functional groups presented in the crystal were confirmed by FT-IR spectroscopic studies. Optical transmittance of the grown crystal was studied by UV–Vis–NIR spectroscopy. The dielectric loss and dielectric constant measurement as a frequency and temperature were measured on bis 2,5-DAS single crystal. The thermal stability and decomposition stages of the grown crystal were studied by TG-DTA analysis. Microhardness measurements revealed that bis 2,5-DAS belongs to a soft material category. Laser damage threshold studies were carried out for the grown crystal. The second harmonic generation of the crystal was confirmed and the efficiency was measured using Kurtz Perry powder method.

Crystal growth, structural, spectral, optical and mechanical studies of zinc (tris) thiourea sulphate (ZTS) single crystals: A semiorganic non-linear optical material

2015 ◽  
Vol 2 (2) ◽  
pp. 5-8
Author(s):  
Selvapandiyan M ◽  
Arumugam J
Keyword(s):  
Second Harmonic Generation ◽  
Single Crystal ◽  
Harmonic Generation ◽  
Nonlinear Optical ◽  
Grown Crystal ◽  
Second Harmonic ◽  
Visible Spectrum ◽  
Uv Visible ◽  
Optical Applications ◽  
Nonlinear Optical Applications

Zinc-tris thiourea sulphate (ZTS) is one of the promising semiorganic nonlinear optical materials; it is useful for nonlinear optical applications. The grown crystals were subjected to single crystal Xray diffraction, UV-visible spectrum, FTIR, microhardness and SHG studies. Single crystal X- ray diffraction analysis revealed that the grown crystal belongs to orthorhombic system with space groupPca21 . Various functional groups present in the sample were identified by FTIR analysis. UV visible transmittance spectrum shows that the wide transmittance and lower cut-off wavelength. The mechanical property of the grown crystal has been analysed by Vickers microhardness test. Second harmonic generation was confirmed by using Nd: YAG laser. The second harmonic generation results confirmed that the crystal has better nonlinearity than KDP crystal.

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