scholarly journals Growth and Characterization of Organic Based Marine Dye NLO Material: 7-Bromo-6-chloro-3-[3-[(2R, 3S)-3-hydroxy-2-piperidyl]-2-oxopropyl]-4(3H)-quinazolinone

2011 ◽  
Vol 8 (3) ◽  
pp. 1062-1067 ◽  
Author(s):  
M. Jayandran ◽  
V. Balasubramanian
Keyword(s):  
Grown Crystal ◽  
Second Harmonic ◽  
Xrd Analysis ◽  
X Ray Diffraction ◽  
Ftir Studies ◽  
Visible Transmittance ◽  
Slow Evaporation Technique ◽  
Evaporation Technique ◽  
Uv Visible

An organic marine dye compound (7-bromo-6-chloro-3-[3-[(2R, 3S)-3-hydroxy-2-piperidyl]-2-oxopropyl]-4(3H)-quinazolinone) was synthesized. The characteristics of this dye is soluble in water. The organic compound was made into a crystal by slow evaporation technique. The grown crystals were characterized by single crystal x-ray diffraction (XRD) analysis, FTIR studies and UV-visible transmittance studies and the NLO activity of the grown crystal has been checked by second harmonic generation (SHG) test.

Synthesis, Growth and Characterization of Organic Nonlinear Optical L-Asparagine L-Tartrate Single Crystals

2012 ◽  
Vol 584 ◽  
pp. 13-17 ◽  
Author(s):  
G. Peramaiyan ◽  
P. Pandi ◽  
B.M. Sornamurthy ◽  
R. Mohan Kumar
Keyword(s):  
Nonlinear Optical ◽  
Grown Crystal ◽  
Second Harmonic ◽  
Bulk Single Crystal ◽  
X Ray Diffraction ◽  
Ftir Studies ◽  
Slow Evaporation Technique ◽  
Evaporation Technique ◽  
Generation Test

L-asparagine L-tartrate (LAT), an organic compound has been synthesized from aqueous solution and bulk single crystal has been grown by slow evaporation technique. Powder X-ray diffraction studies confirmed the monoclinic structure of the grown LAT crystal. The presence of functional groups of the grown crystal was identified by FTIR studies. Linear optical property of the grown crystal was studied by UV-Vis spectral analysis. Microhardness studies reveal that the crystal possesses relatively higher hardness compared to other organic nonlinear optical crystals. Dielectric response of the L-asparagine L-tartrate crystal was analyzed for different frequencies at various temperatures. Kurtz-Perry powder second harmonic generation test confirmed the nonlinear optical properties of the as-grown LAT crystal.

scholarly journals Growth and Characterization of Anthranilic acid Crystals

2016 ◽  
Vol 12 (11) ◽  
pp. 4480-4487
Author(s):  
S. Dinagaran ◽  
P Srinivasan ◽  
P Srinivasan ◽  
S Vijayakumar ◽  
S Vijayakumar ◽  
...  
Keyword(s):  
Anthranilic Acid ◽  
Grown Crystal ◽  
Second Harmonic ◽  
Hardness Test ◽  
Recrystallization Process ◽  
X Ray Diffraction ◽  
Physical Strength ◽  
Slow Evaporation Technique ◽  
Evaporation Technique

ABSTRACTSingle crystals of Anthranilic acid (AA) have been successfully grown and purity of materials has been increased by repeated recrystallization process. Single crystals have been grown by slow evaporation technique. The grown crystal was characterized by Single crystal X-Ray diffraction, Powder XRD, FTIR, UV-Vis, DTA/TGA, Dielectric studies and SHG respectively. The observed results from various characterization show the suitability of NLO application. The second harmonic generation of the grown crystal was checked using Kurtz and Perry technique. Thermal stability and melting point of the grown crystal were found by thermal analysis. The Physical strength of the grown AA crystal was measured from Vicker’s hardness test. 

Studies on the Growth Aspects of Thiourea Doped L-Alanine Hydrogenchloride: A Promising NLO Crystal

2012 ◽  
Vol 584 ◽  
pp. 70-73
Author(s):  
P. Malliga ◽  
R. Umamaheshwari ◽  
A. Joseph Arul Pragasam
Keyword(s):  
Second Harmonic ◽  
Optical Transmittance ◽  
Dielectric Measurement ◽  
Infrared Analysis ◽  
X Ray Diffraction ◽  
Second Harmonic Generation Efficiency ◽  
Cell Parameters ◽  
Slow Evaporation Technique ◽  
Evaporation Technique ◽  
Uv Visible

A single crystal of L-alanine hydrogenchloride doped with thiourea has been synthesized and grown successfully by slow evaporation technique at room temperature. The cell parameters were determined by the X-ray diffraction analysis. The UV - visible spectral analysis has been recorded to study the optical transmittance in the range from 200nm to1200nm.The Fourier transform infrared analysis identified various functional groups present in the material.The dielectric measurement was made as function of frequency.HR-SEM studies confirms the inclusion of the dopant thiourea. The second harmonic generation efficiency has been determined by Kurtz powder test.

scholarly journals An Optical Overview of Poly[-L-alanine--nitrato-sodium(I)] Crystals

2012 ◽  
Vol 2012 ◽  
pp. 1-7
Author(s):  
E. Gallegos-Loya ◽  
E. Orrantia-Borunda ◽  
A. Duarte-Moller
Keyword(s):  
Sodium Nitrate ◽  
Grown Crystal ◽  
Second Harmonic ◽  
Vibrational Modes ◽  
Slow Evaporation ◽  
X Ray Diffraction ◽  
X Ray ◽  
Slow Evaporation Technique ◽  
Evaporation Technique ◽  
Xrd Studies

Single crystals of the semiorganic materials, L-alanine sodium nitrate (LASN) and D-alanine sodium nitrate (DASN), were grown from an aqueous solution by slow-evaporation technique. X-ray diffraction (XRD) studies were carried for the doped grown crystals. The absorption of these grown crystals was analyzed using UV-Vis-NIR studies, and it was found that these crystals possess minimum absorption from 200 to 1100 nm. An infrared (FTIR) spectrum of single crystal has been measured in the 4000–400 cm-1range. The assignment of the observed vibrational modes to corresponding symmetry type has been performed. A thermogravimetric study was carried out to determine the thermal properties of the grown crystal. The efficiency of second harmonic generation was obtained by a variant of the Kurtz-Perry method.

Growth and Characterization of a Nonlinear Optical Single Crystal: Bis(4-nitrobenzoate) Tetraaquamanganese (II) Dihydrate (BNMD)

2017 ◽  
Vol 6 (1) ◽  
pp. 62-68
Author(s):  
S. Vetrivel ◽  
R. U. Mullai ◽  
K. Kanagasabapathy ◽  
R. Aruljothi ◽  
V. Praveenkumar
Keyword(s):  
Single Crystal ◽  
Second Harmonic ◽  
Thermal Studies ◽  
Wavelength Region ◽  
Soft Materials ◽  
X Ray Diffraction ◽  
X Ray ◽  
Evaporation Technique ◽  
Uv Visible

Semiorganic optically transparent Bis(4-nitrobenzoate) tetraaquamanganese (II) dihydrate [Mn (p-NO2C6H4COO)2 (H2O)4]·2H2O (BNMD) single crystals were grown by slow evaporation technique at room temperature. Single crystal X-ray diffraction analysis was carried out to determine the lattice parameters of the crystal. Powder X-ray diffraction pattern was recorded and indexed for the structural confirmation. The crystalline quality was confirmed by HRXRD. The presence of functional group in the compound has been confirmed by FTIR analysis. UV-Visible transmission spectrum has been recorded to determine the cut-off wavelength region of the crystal. The Second Harmonic Generation of BNMD crystal was confirmed by Kurtz-Perry powder method using Nd:YAG laser and found to be 0.59 times that of KDP. The dielectric response of the crystal was also investigated and reported. The microhardness study reveals that the hardness number (Hv) increases with load. From the values of work hardening coefficients, it was concluded that BNMD crystal belong to the category of soft materials. Thermal studies were performed using differential thermal analysis (DTA).

scholarly journals Growth, Optical and Microhardness Studies of 2-Aminothiazole- 3, 5-Dinitrobenzoic Acid Complex

2019 ◽  
Vol 1 (1) ◽  
pp. 42-45
Author(s):  
Tamiloli Devendhiran ◽  
Keerthika Kumarasamy ◽  
Mei–Ching Lin
Keyword(s):  
Room Temperature ◽  
Grown Crystal ◽  
Optical Transmittance ◽  
Dielectric Measurements ◽  
Slow Evaporation ◽  
X Ray Diffraction ◽  
Acid Complex ◽  
X Ray ◽  
Slow Evaporation Technique ◽  
Evaporation Technique

Single crystals of 2-Aminothiazole 3,5-Dinitrobenzoic acid has been synthesized and good quality optical crystals were grown by slow evaporation technique at room temperature. The crystallinity nature of the grown crystal was confirmed from X-ray diffraction technique. An optical transmittance study was also carried out by UV – Vis spectra. FTIR spectra confirm the presence of functional groups in the grown crystal. The dielectric measurements were carried out in the range of 50Hz to 2MHz. The dielectric constant was seen to increase exponentially at lower frequencies. The microhardness studies were carried out using Vickers hardness indenter. Photoluminescence study shows that maximum emission occurs at 435nm.

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 Studies on the growth and characterization of L-cysteine hydrogen fluoride single crystal

2019 ◽  
Vol 37 (3) ◽  
pp. 304-309
Author(s):  
Azeezaa Varsha Mohammed ◽  
Suresh Sagadevan
Keyword(s):  
Single Crystal ◽  
Hydrogen Fluoride ◽  
Grown Crystal ◽  
Optical Band Gap ◽  
Second Harmonic ◽  
X Ray Diffraction ◽  
X Ray ◽  
Vis Spectroscopy ◽  
Ft Ir

AbstractL-cysteine hydrogen fluoride (LCHF) single crystals were grown from aqueous solution. Single crystal X-ray diffraction, FT-IR, UV-Vis-NIR, and TG-DTA were used to test the grown crystals. The specimen dielectric and mechanical behaviors were also studied. Powder X-ray diffraction of the grown crystal was recorded and indexed. The optical properties of the LCHF crystal were determined using UV-Vis spectroscopy. It was found that the optical band gap of LCHF was 4.8 eV. The crystal functional groups were identified using FT-IR. Second harmonic generation (SHG) efficiency of the LCHF was three times higher than that of KDP. The dielectric constant, dielectric loss and AC conductivity were measured at different frequencies and temperatures.

scholarly journals Synthesis and Characterization of SEM, UV absorption coefficient and shock wave properties of Thiourea Sodium Sulphate crystal

2020 ◽  
Vol 17 (3) ◽  
pp. 270-275
Author(s):  
M. Uday Bhaskar ◽  
S. Senthilkumar ◽  
G. Shankar
Keyword(s):  
Absorption Coefficient ◽  
Single Crystal ◽  
Second Harmonic ◽  
Sodium Sulphate ◽  
Linear Optics ◽  
Non Linear Optics ◽  
Slow Evaporation Technique ◽  
Evaporation Technique ◽  
Wave Properties

Single crystal of Thiourea Sodium Sulphate (TSS) was prepared by a slow evaporation technique. The optical absorption and absorption coefficient are studied by UV. Vis.-NIR The voids or defects of the TSS crystal were carried out by its surface morphology analysis by SEM. The NLO properties of shocked TSS single crystal were estimated by UV-Vis-NIR spectroscopic analysis. Finally the nonlinear optical property of TSS crystal was estimated by Second Harmonic Generation (SHG) and the suitability of present titled mono crystal against mechanical resistivity after the shock for non linear optics and for photonic application has been confirmed.

Growth and Characterization of Pure and Thiourea Doped L-Alanine Single Crystals for Crystals for NLO Devices

2015 ◽  
Vol 1086 ◽  
pp. 79-84 ◽  
Author(s):  
P. Malliga ◽  
A. Joseph Arul Pragasam
Keyword(s):  
Single Crystals ◽  
Solution Method ◽  
Grown Crystal ◽  
Wavelength Region ◽  
Spectral Studies ◽  
X Ray Diffraction ◽  
Crystal Properties ◽  
Evaporation Technique ◽  
Surface Morphologies

Single crystals of pure and thiourea substituted L-alanine single crystals were grown successfully by the solution method with slow evaporation technique at room temperature. The effect of dopant on crystal properties has been studied. The solubility of the grown samples was found at various temperatures. Structural characterization of the grown crystals was determined by the single crystal X-ray diffraction (XRD). EDAX studies indicate the presence of thiourea in the doped L-alanine crystals. The functional groups were identified by FTIR spectroscopy. The UV-Vis- NIR spectral studies were carried out to analyze the optical absorption of the grown crystals and found that the absorption is very low in the wavelength region 232-1000nm for both the samples. SEM studies explain the surface morphologies of the grown crystals. Improvement in the SHG efficiency was studied by the Kurtz and Perry method. Thermal analysis has been carried on the grown crystal. Keywords: NLO, XRD, EDAX, UV-Vis-NIR, SEM

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