OPTICAL, THERMAL AND MECHANICAL STUDIES ON NONLINEAR OPTICAL MATERIAL DIGLYCINE BARIUM CHLORIDE MONOHYDRATE (DGBCM) SINGLE CRYSTAL

2013 ◽  
Vol 22 (04) ◽  
pp. 1350043 ◽  
Author(s):  
G. MARUDHU ◽  
S. KRISHNAN ◽  
T. THILAK ◽  
P. SAMUEL ◽  
G. VINITHA ◽  
...  
Keyword(s):  
Single Crystals ◽  
Nonlinear Optical ◽  
Fluorescence Spectra ◽  
Second Harmonic ◽  
Barium Chloride ◽  
X Ray Diffraction ◽  
Second Harmonic Generation Efficiency ◽  
Growth Technique ◽  
Chloride Monohydrate ◽  
Solution Growth Technique

The nonlinear optical single crystals of diglycine barium chloride monohydrate were grown by slow evaporation solution growth technique from the mixture of an aqueous solution of glycine and barium chloride in the ratio 2:1 at room temperature. The grown crystals were characterized by various techniques such as single crystals X-ray diffraction, FTIR, UV-Vis-NIR spectra, Vickers hardness studies, thermogravimetric analysis, and fluorescence spectra. Its second harmonic generation efficiency was measured by Kurtz and Perry powder technique using Nd :YAG laser.

INVESTIGATION ON THE PHYSICOCHEMICAL PROPERTIES OF NONLINEAR OPTICAL SINGLE CRYSTAL: 2-NAPHTHALENOL

2009 ◽  
Vol 23 (09) ◽  
pp. 1221-1227
Author(s):  
K. SELVARAJU ◽  
K. KIRUBAVATHI ◽  
S. KUMARARAMAN
Keyword(s):  
Single Crystal ◽  
Nonlinear Optical ◽  
Second Harmonic ◽  
Potassium Dihydrogen Phosphate ◽  
Wavelength Region ◽  
Dihydrogen Phosphate ◽  
X Ray Diffraction ◽  
Second Harmonic Generation Efficiency ◽  
Growth Technique ◽  
Potassium Dihydrogen

Single crystals of 2-Naphthalenol (2N), new organic nonlinear optical (NLO) material, have been grown by slow evaporation solution growth technique at room temperature. The crystal system has been confirmed from the single crystal X-ray diffraction analysis. The functional groups were identified using FTIR spectroscopy. UV-vis-NIR spectrum showed absence of absorption in the wavelength region 400–1400 nm. The second harmonic generation efficiency is two times higher than that of standard potassium dihydrogen phosphate (KDP).

scholarly journals Growth, structural and optical properties of novel nonlinear optical potassium phthalate di lithium borate (KPDLiB) single crystals

2020 ◽  
Vol 38 (2) ◽  
pp. 214-218
Author(s):  
K. Mohanraj ◽  
D. Balasubramanian ◽  
N. Jhansi
Keyword(s):  
Single Crystals ◽  
Nonlinear Optical ◽  
Second Harmonic ◽  
Visible Region ◽  
Fluorescence Emission ◽  
Lithium Borate ◽  
X Ray Diffraction ◽  
Second Harmonic Generation Efficiency ◽  
X Ray ◽  
Evaporation Technique

AbstractNovel nonlinear optical semi-organic, potassium phthalate di lithium borate (KPDLiB) single crystals were successfully grown by the slow solvent evaporation technique. Good crystalline nature and an orthorhombic structure were confirmed by powder X-ray diffraction and single crystal X-ray diffraction studies. The functional groups of KPDLiB were identified using FT-IR spectrum recorded in the range of 4000 cm−1 to 450 cm−1. UV-Vis spectrum showed transmitting ability of the crystals in the entire visible region. The photoluminescence spectrum exhibited good fluorescence emission in a visible region at 384 nm, 416 nm and 578 nm. The second harmonic generation efficiency of the grown crystal was evaluated from Kurtz powder technique.

STUDIES ON GROWTH AND CHARACTERIZATION OF BIS THIOUREA LEAD CHLORIDE: A NOVEL NONLINEAR OPTICAL CRYSTAL

2009 ◽  
Vol 18 (01) ◽  
pp. 153-159 ◽  
Author(s):  
K. KIRUBAVATHI ◽  
K. SELVARAJU ◽  
S. KUMARARAMAN
Keyword(s):  
Nonlinear Optical ◽  
Hardness Test ◽  
Lead Chloride ◽  
Infrared Analysis ◽  
X Ray Diffraction ◽  
Growth Technique ◽  
Metal Organic ◽  
First Time ◽  
Solution Growth Technique

Single crystals of the metal-organic nonlinear optical material bis thiourea lead chloride were grown from solution growth technique for the first time. The grown crystals were characterized by single crystal X-ray diffraction analysis to confirm the crystal structure. The presence of various functional groups and the coordination of metal ions to thiourea were confirmed by Fourier transform infrared analysis. UV-Vis. spectrum was recorded to study the optical transparency of the grown crystals. The second order nonlinear optical property of the grown crystal was examined by Kurtz powder technique and mechanical behavior was studied by Vickers micro hardness test.

Unidirectional growth and characterization of L-tartaric acid single crystals

2013 ◽  
Vol 46 (4) ◽  
pp. 993-998 ◽  
Author(s):  
K. Moovendaran ◽  
S. Natarajan
Keyword(s):  
Single Crystals ◽  
Tartaric Acid ◽  
Second Harmonic ◽  
Nir Spectroscopy ◽  
Damage Threshold ◽  
Laser Damage Threshold ◽  
Solution Technique ◽  
X Ray Diffraction ◽  
Second Harmonic Generation Efficiency ◽  
X Ray

Single crystals of L-tartaric acid (LTA), an organic nonlinear optical material, have been grown using a home-built crystal growth setup (the Moovendaran–Kalyanasundar–Natarajan setup). Crystals of LTA were also grown by the slow evaporation solution technique. These single crystals were characterized using single-crystal X-ray diffraction, high-resolution X-ray diffraction, and IR and UV–Vis–NIR spectroscopy. In addition, measurements of Vickers microhardness, laser damage threshold value and second harmonic generation efficiency are reported. Thermal, dielectric and photoluminescence studies were also carried out.

CRYSTAL GROWTH, THERMAL, OPTICAL AND MICROHARDNESS STUDIES OF TRIS (THIOUREA) MAGNESIUM SULPHATE: A SEMIORGANIC NLO MATERIAL

2009 ◽  
Vol 23 (25) ◽  
pp. 3035-3043 ◽  
Author(s):  
G. PASUPATHI ◽  
P. PHILOMINATHAN
Keyword(s):  
Magnesium Sulphate ◽  
Second Harmonic ◽  
Thermo Gravimetric Analysis ◽  
Gravimetric Analysis ◽  
X Ray Diffraction ◽  
Thermo Gravimetric ◽  
Thermal Stabilities ◽  
Growth Technique ◽  
Temperature Solution ◽  
Solution Growth Technique

Single crystals of tris (Thiourea) magnesium sulphate (MTS) were grown from aqueous solution by low temperature solution growth technique. The grown crystals have been characterized by X-ray diffraction to confirm the formation of the crystalline phases. The presence of functional groups was identified by Fourier transform infrared spectroscopy. The optical transmission spectrum showed that a lower cut-off wavelength of MTS crystal is below 300 nm and it has a wide transparency window, which is suitable for second harmonic generation of laser in the blue region. The thermal stabilities were studied by differential thermal analysis (DTA) and thermo gravimetric analysis (TGA). Nonlinear optical characteristics of MTS were studied using Q-switched Nd:YAG laser (λ=1064 nm ). The micro-hardness studies reveal the mechanical properties of the grown crystals.

Enhancement of second harmonic generation, optical and dielectric properties inL-asparagine monohydrate single crystals due to an improvement in crystalline perfection by annealing

2010 ◽  
Vol 43 (3) ◽  
pp. 491-497 ◽  
Author(s):  
Mohd. Shakir ◽  
S. K. Kushawaha ◽  
K. K. Maurya ◽  
Sumeet Kumar ◽  
M. A. Wahab ◽  
...  
Keyword(s):  
Dielectric Properties ◽  
Second Harmonic Generation ◽  
Single Crystals ◽  
Harmonic Generation ◽  
Second Harmonic ◽  
X Ray Diffraction ◽  
Crystalline Perfection ◽  
Second Harmonic Generation Efficiency ◽  
X Ray ◽  
Asparagine Monohydrate

Single crystals of the relatively new nonlinear optical material L-asparagine monohydrate have been successfully grown by the slow evaporation solution growth technique at room temperature in aqueous solution. The crystal system of the title material has been confirmed by powder X-ray diffraction. The crystalline perfection of the as-grown and annealed crystals has been evaluated by high-resolution X-ray diffraction. The as-grown single crystals (particularly when their size is large) were found to contain internal structural grain boundaries, and the crystalline perfection of these crystals was found to be improved substantially by annealing at low temperatures. The crystalline perfection and the measured physical properties were found to be correlated such that the second harmonic generation efficiency, optical transparency, fluorescence and dielectric properties are enhanced as the crystal quality improves.

Physical and optical study of potassium-doped meta-Nitroaniline crystal (mNAK)

2014 ◽  
Vol 23 (01) ◽  
pp. 1450012 ◽  
Author(s):  
T. Thilak ◽  
M. Basheer Ahamed ◽  
P. Murugakoothan
Keyword(s):  
Optical Properties ◽  
Nonlinear Optical ◽  
Second Harmonic ◽  
Thermo Gravimetric Analysis ◽  
Gravimetric Analysis ◽  
X Ray Diffraction ◽  
Infrared Study ◽  
Second Harmonic Generation Efficiency ◽  
X Ray ◽  
Single Beam

A nonlinear optical crystal of potassium-doped meta-Nitroaniline (mNAK) was grown by slow evaporation method using methanol as solvent. The growth mechanism was understood by chemical etching studies. The presence of potassium in the crystal was identified by energy-dispersive X-ray diffraction. Lattice parameters for the title crystal were determined by single-crystal X-ray diffraction and powder X-ray diffraction techniques, and the functional groups in the crystal were revealed by Fourier transform infrared study. Optical properties of the crystal were evaluated by UV-Vis-NIR transmission and absorption spectra in the range of 200–1000 nm. Thermal stability of the crystal was studied by thermo gravimetric analysis and differential thermal analysis. Mechanical properties of the crystal were analyzed using Vicker's microhardness technique. Second harmonic generation efficiency of the crystal was examined using pulsed Nd :YAG laser. Finally, the third-order nonlinear optical properties of the crystal were measured using single-beam Z-scan technique.

scholarly journals Investigation on Growth, Structural, Spectral, Optical, and Mechanical Properties of an Organic Nonlinear Optical Material: Morpholinium Hydrogen Tartrate

2014 ◽  
Vol 2014 ◽  
pp. 1-5
Author(s):  
R. Renugadevi ◽  
R. Kesavasamy
Keyword(s):  
Nonlinear Optical ◽  
Grown Crystal ◽  
Second Harmonic ◽  
Spectral Studies ◽  
Solution Technique ◽  
Molecular Formula ◽  
X Ray Diffraction ◽  
Second Harmonic Generation Efficiency ◽  
Optical And Mechanical Properties ◽  
Dta Studies

Organic nonlinear optical crystal morpholinium hydrogen tartrate (MHT), with molecular formula [C8H15NO7], has been grown by slow evaporation solution technique. Single crystal X-ray diffraction study confirms that MHT crystallizes in orthorhombic system with noncentrosymmetric space group P212121. FTIR spectrum was recorded to identify the various functional groups of MHT. The various kinds of protons and carbons of MHT have been identified using1H and13C NMR spectral analyses. The range of optical absorption was ascertained by recording UV-Vis-NIR spectral studies. The TG/DTA studies revealed that the grown crystal is thermally stable up to 159.26°C. The mechanical property of the grown crystal was studied using Vickers microhardness studies. The relative second harmonic generation efficiency of MHT was determined using Kurtz and Perry powder technique; it was observed to be greater than that of KDP crystal.

scholarly journals Effect of Metal Dopant on Ninhydrin—Organic Nonlinear Optical Single Crystals

2013 ◽  
Vol 2013 ◽  
pp. 1-5 ◽  
Author(s):  
R. S. Sreenivasan ◽  
N. Kanagathara ◽  
G. Ezhamani ◽  
N. G. Renganathan ◽  
G. Anbalagan
Keyword(s):  
Single Crystal ◽  
Single Crystals ◽  
Second Harmonic ◽  
Visible Region ◽  
Lattice Parameters ◽  
Cutoff Wavelength ◽  
X Ray Diffraction ◽  
Monoclinic System ◽  
Second Harmonic Generation Efficiency ◽  
X Ray

In the present work, metal (Cu2+)-substituted ninhydrin single crystals were grown by slow evaporation method. The grown crystals have been subjected to single crystal XRD, powder X-ray diffraction, FTIR, dielectric and SHG studies. Single crystal X-ray diffraction analysis reveals that the compound crystallizes in monoclinic system with noncentrosymmetric space group P21 with lattice parametersa=11.28 Å,b=5.98 Å,c=5.71 Å,α=90∘,β=98.57,γ=90∘, andV=381 (Å)3, which agrees very well with the reported value. The sharp and strong peaks in the powder X-ray diffraction pattern confirm the good crystallinity of the grown crystals. The presence of dopants marginally altered the lattice parameters without affecting the basic structure of the crystal. The UV-Vis transmittance spectrum shows that the crystal has a good optical transmittance in the entire visible region with lower cutoff wavelength 314 nm. The vibrational frequencies of various functional groups in the crystals have been derived from FT-IR analysis. Based on the shifts in the vibrations, the presence of copper in the lattice of the grown crystal is clearly established from the pure ninhydrin crystals. Both dielectric constant and dielectric loss decrease with the increase in frequency. The second harmonic generation efficiency was measured by employing powder Kurtz method.

Sign in / Sign up

Export Citation Format

Share Document