Growth, Optical, Dielectric and Hardness Studies of an Organic Nonlinear Optical Picolinium Maleate Single Crystal

2012 ◽  
Vol 584 ◽  
pp. 24-28 ◽  
Author(s):  
P. Pandi ◽  
G. Peramaiyan ◽  
R. Mohan Kumar ◽  
R. Jayavel
Keyword(s):  
Single Crystal ◽  
Second Harmonic ◽  
Wavelength Region ◽  
Damage Threshold ◽  
Threshold Value ◽  
Xrd Analysis ◽  
Laser Damage Threshold ◽  
Spectral Studies ◽  
Ftir Spectral Analysis ◽  
Harmonic Conversion

Picolinium maleate (PM), a novel organic compound has been synthesised and bulk crystal has been grown from the aqueous solution by slow evaporation technique. The structure of the grown crystal was elucidated by using single crystal XRD analysis and powder XRD pattern further confirmed the crystallinity of the grown PM crystal. The presence of functional groups in PM were identified by FTIR spectral analysis. UV-Vis spectral studies revealed that PM crystals are transparent in the wavelength region 327–1100 nm. The laser damage threshold value of PM crystal was measured using Nd:YAG laser. The second harmonic conversion property was studied by Kurtz and Perry powder technique.

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, Dielectric and SHG measurement of semiorganic NLO single crystals: Triglycine Sodium halides

2014 ◽  
Vol 1698 ◽  
Author(s):  
R. Ananad kumari
Keyword(s):  
Sodium Chloride ◽  
Single Crystals ◽  
Second Harmonic ◽  
Threshold Energy ◽  
Damage Threshold ◽  
Laser Damage Threshold ◽  
Second Harmonic Generation Efficiency ◽  
Ftir Spectral Analysis ◽  
Sodium Halides ◽  
Evaporation Technique

ABSTRACTSingle crystals of semiorganic nonlinear optical material Triglycine Sodium Halides(TGSH) have been grown from aqueous solution by slow evaporation technique at constant temperature. The powder X-ray diffraction of the grown crystals is recorded and indexed. Functional groups present in the samples are identified by FTIR spectral analysis. The optical absorption studies shows that the UV cut off wavelength is around 300nm and has a wide transparency window. The powder second harmonic generation efficiency of the crystals is measured by Kurtz and Perry powder technique using Nd:YAG laser and it is 1.5 times for Triglycine Sodium Chloride, 1.2 times for Triglycine Sodium Bromide and 1.4 times for Triglycine potassium Iodide crystals that of the standard KDP crystals. Triglycine Sodium halide crystals show very good stability under laser irradiation with no signs of decomposition. Laser damage threshold energy density of Triglycine Sodium Iodide is found to be 857 MW/cm2 and 540MW/cm2 for Triglycine Sodium Chloride crystals.

scholarly journals Investigation on the optical, spectral, electrical, mechanical, and laser damage threshold studies of bis (4-acetylanilinium) tetrachloridozincate (B4ATCZ) crystal

2021 ◽  
Author(s):  
M. Suriya ◽  
M. Manimaran ◽  
B. Milton Boaz ◽  
K. Sakthi Murugesan
Keyword(s):  
Single Crystal ◽  
Nonlinear Optical ◽  
Damage Threshold ◽  
Threshold Value ◽  
Laser Damage Threshold ◽  
Bandgap Energy ◽  
Saturable Absorption ◽  
Reverse Saturable Absorption ◽  
Orthorhombic Crystal ◽  
Laser Induced Damage

AbstractAn efficient semi-organic nonlinear optical bis (4-acetylanilinium) tetrachloridozincate [(C8H10NO)2 ZnCl4] (B4ATCZ) single crystal was synthesized and successfully grown by the slow evaporation method. The single-crystal X-ray diffraction data confirm that B4ATCZ crystallized into an orthorhombic crystal system (Cmca). The UV–Vis–NIR transmittance spectrum was taken to assess the optical transmission, cut-off wavelength, and bandgap energy. The TG–DSC investigation ensures that the B4ATCZ is stable up to 235 °C. The mechanical behavior of the B4ATCZ compound was determined by Vickers Microhardness analysis. The surface laser-induced damage threshold value of the grown B4ATCZ crystal was endowed to be 19.78 GW/cm2 on testing with 1064 nm Nd: YAG laser radiation. The positive photoconductive properties and charge transport mechanism of B4ATCZ crystal were analyzed through photoconductivity and dielectric studies. The electron excitation and lifetime measurements of the molecules in the B4ATCZ crystal were studied by fluorescence spectral analysis. The HOMO–LUMO analysis evidently interprets the occurrence of N–H⋯O and N–H⋯Cl intermolecular hydrogen bonds influencing the charge transfer in the system. The electrostatic potential surface reveals the possible sites for hydrogen bonding electrophilic and nucleophilic interactions. Third-order nonlinear optical activity evaluated by the Z-scan measurements indicates the self-focusing and reverse saturable absorption in the crystal. The aforesaid results affirm that the metal-organic B4ATCZ is a potential material for optoelectronic and nonlinear optical device applications.

scholarly journals Structural, Linear, and Nonlinear Optical and Mechanical Properties of New Organic L-Serine Crystal

2014 ◽  
Vol 2014 ◽  
pp. 1-5 ◽  
Author(s):  
K. Rajesh ◽  
P. Praveen Kumar
Keyword(s):  
Single Crystal ◽  
Nonlinear Optical ◽  
Grown Crystal ◽  
Damage Threshold ◽  
Threshold Value ◽  
Laser Damage Threshold ◽  
Solubility Study ◽  
Evaporation Technique ◽  
Linear And Nonlinear ◽  
Optical And Mechanical Properties

Nonlinear optical single crystal of organic amino acid L-Serine (LS) was grown by slow evaporation technique. Solubility study of the compound was measured and metastable zone width was found. Single crystal X-ray diffraction study was carried out for the grown crystal. The linear and nonlinear optical properties of the crystal were confirmed by UV-Vis analysis and powder SHG tester. FT-IR spectrum was recorded and functional groups were analyzed. Vickers’ microhardness studies showed the mechanical strength of the grown crystal. Laser damage threshold value of the crystal was calculated. Photoconductivity studies reveal the conductivity of the crystal.

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.

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.

SYNTHESIS, GROWTH AND CHARACTERIZATION OF L-VALINE ZINC HYDROCHLORIDE — A NOVEL SEMI-ORGANIC NONLINEAR OPTICAL SINGLE CRYSTAL

2013 ◽  
Vol 22 (02) ◽  
pp. 1350016 ◽  
Author(s):  
DEEPA JANANAKUMAR ◽  
P. MANI
Keyword(s):  
Single Crystal ◽  
Nonlinear Optical ◽  
Near Infrared ◽  
Second Harmonic ◽  
Damage Threshold ◽  
Dielectric Behavior ◽  
Laser Damage Threshold ◽  
X Ray Diffraction ◽  
Cell Parameters ◽  
Linear Optical Properties

Single crystals of L-valine zinc hydrochloride (LVZHCl), a novel semi-organic nonlinear optical material were synthesized and grown from aqueous solution by slow evaporation method at room temperature. The cell parameters of LVZHCl had been determined using single crystal X-ray diffraction technique. The linear and non-linear optical properties of the crystals were studied by Fourier Transform Infrared, Ultraviolet Visible Near infrared, ac impedance, laser damage threshold, and second harmonic generation analysis. The thermal stability of the crystals was assessed by Differential thermal-Thermogravimetric analysis. The crystallinity and mechanical properties of the crystals were studied by Dielectric behavior and Vickers microhardness test.

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