scholarly journals Studies on Optical Constants and Solid State Parameters of a Semi-organic Nonlinear Optical Material L-Methioninium Nitrate for Optoelectronic Device Fabrication

2020 ◽  
Vol 13 (3) ◽  
pp. 274-282
Author(s):  
P. Vasudevan ◽  
M. Sankar Kumar ◽  
G. Anumantha Kannan
Keyword(s):  
Nonlinear Optical ◽  
Grown Crystal ◽  
Second Harmonic ◽  
Optoelectronic Device ◽  
Device Fabrication ◽  
Optical Material ◽  
Nonlinear Optical Material ◽  
Dielectric Parameters ◽  
Second Harmonic Generation Efficiency ◽  
Plasma Energy

Semi-organic nonlinear optical material L-methioninium nitrate have been synthesized by the slow evaporation technique at room temperature. The synthesized crystal structure lattice parameters are found to be a = 10.68 (2) Ǻ, b = 5.47 (2) Ǻ, c = 16.725.47 (2) Ǻ; α = γ = 90º, β = 100.7º by single crystal X-ray diffractometer. The grown crystal belongs to a monoclinic structure and non-centrosymmetric space group P21. Optical properties were determined from optical absorption studies to compute the absorption range, band gap, refractive index and electrical susceptibility of L-methioninium nitrate. Dielectric parameters of the sample carried out at different temperature in the frequency range from 100 Hz to 5 MHz. The solid parameters such as plasma energy, Penn gap, Fermi energy and polarizability of L-methioninium nitrate have been determined using dielectric studies. The second harmonic generation efficiency of the grown crystal has been confirmed by Kurtz and Perry technique. These preliminary investigations suggest that the present compound L-methioninium nitrate can serve as a potential material for optoelectronic device fabrication.

scholarly journals A novel selenoalkenyl-isoxazole based donor–acceptor nonlinear optical material

CrystEngComm ◽  
2018 ◽  
Vol 20 (1) ◽  
pp. 12-16 ◽  
Author(s):  
Brigitte Holzer ◽  
Berthold Stöger ◽  
Paul Kautny ◽  
Georg Reider ◽  
Christian Hametner ◽  
...  
Keyword(s):  
Second Harmonic Generation ◽  
Harmonic Generation ◽  
Nonlinear Optical ◽  
Second Harmonic ◽  
Optical Material ◽  
Acceptor Molecule ◽  
Nonlinear Optical Material ◽  
Generation Efficiency ◽  
Second Harmonic Generation Efficiency ◽  
Donor Acceptor

A novel selenium-based donor–acceptor molecule with high second harmonic generation efficiency is presented.

Growth, Vibrational, Optical, Mechanical and DFT Investigations of an Organic Nonlinear Optical Material – Phenylurea

2019 ◽  
Vol 233 (11) ◽  
pp. 1659-1682 ◽  
Author(s):  
Marappan Dinesh ◽  
Palanisamy Maadeswaran ◽  
Mon-Shu Ho ◽  
Balraj Babu ◽  
Sivakumar Chandrasekar
Keyword(s):  
Single Crystal ◽  
Density Functional ◽  
Nonlinear Optical ◽  
Grown Crystal ◽  
Second Harmonic ◽  
Material Behavior ◽  
Optical Material ◽  
Mulliken Charge ◽  
Cutoff Wavelength ◽  
Nonlinear Optical Material

Abstract In this work, combined experimental and computational studies of an organic nonlinear optical material, phenylurea (PU), are reported. Optical quality single crystal of PU, was successfully grown by the slow evaporation method. The unit cell parameters of the grown PU crystal belong to the monoclinic system and these belong to the non-centrosymmetric (NCS), P21, space group. Morphology of the crystal was indexed and it reveals its 14 distinct faces. Vibrational modes of PU functional groups were assigned successfully using FTIR and Raman spectrum. The grown crystal exhibits low cutoff wavelength at UV region with good optical transparency and blue wavelength emission. The preliminary measurements confirmed that second harmonic generation (SHG) activity (∼7.6 KDP and ∼2.2 urea) with excellent laser induced threshold damage (LDT) having a value of 2.92 GW/cm2 (∼1.95 urea). TG/DTA analysis shows that endothermic nature of grown crystal with thermal stability up to 154 °C. The Vickers micro hardness test confirms soft material behavior of PU crystal and it was further explored by crystal void percentage calculation. Electrical properties such as dielectric and photoconductivity measurements were carried out for grown crystal. Furthermore, density functional theory (DFT) studies such as Mulliken charge distribution, frontier molecular orbitals (FMOs), molecular electrostatic potential (MEP) map and first order hyperpolarizability (β) were determined to probe the structure-property relationship. These results suggest that PU single crystal can be a better alternate for urea in NLO applications.

Li8NaRb3(SO4)6·2H2O as a new sulfate deep-ultraviolet nonlinear optical material

2018 ◽  
Vol 6 (45) ◽  
pp. 12240-12244 ◽  
Author(s):  
Yanqiang Li ◽  
Sangen Zhao ◽  
Pai Shan ◽  
Xianfeng Li ◽  
Qingran Ding ◽  
...  
Keyword(s):  
Second Harmonic Generation ◽  
Harmonic Generation ◽  
Nonlinear Optical ◽  
Second Harmonic ◽  
Optical Material ◽  
Type I ◽  
Nonlinear Optical Material ◽  
Deep Ultraviolet

A new sulfate Li8NaRb3(SO4)6·2H2O exhibits a short cutoff edge below λ < 190 nm and has a moderate second-harmonic generation response in type-I phase-matchable behavior.

ChemInform Abstract: A New UV Nonlinear Optical Material CsZn2B3O7: ZnO4Tetrahedra Double the Efficiency of Second-Harmonic Generation.

ChemInform ◽  
2014 ◽  
Vol 45 (18) ◽  
pp. no-no
Author(s):  
Sangen Zhao ◽  
Jia Zhang ◽  
Shu-quan Zhang ◽  
Zhihua Sun ◽  
Zheshuai Lin ◽  
...  
Keyword(s):  
Second Harmonic Generation ◽  
Harmonic Generation ◽  
Nonlinear Optical ◽  
Second Harmonic ◽  
Optical Material ◽  
Nonlinear Optical Material

A beryllium-free deep-UV nonlinear optical material CsNaMgP2O7with honeycomb-like topological layers

2018 ◽  
Vol 6 (15) ◽  
pp. 3910-3916 ◽  
Author(s):  
Sangen Zhao ◽  
Yi Yang ◽  
Yaoguo Shen ◽  
Xiaodong Wang ◽  
Qingran Ding ◽  
...  
Keyword(s):  
Second Harmonic Generation ◽  
Harmonic Generation ◽  
Nonlinear Optical ◽  
Second Harmonic ◽  
Optical Material ◽  
Nonlinear Optical Material ◽  
Deep Uv

Beryllium-free deep-UV nonlinear optical CsNaMgP2O7consists of honeycomb-like topological layers, which should be attributable to an enhanced second harmonic generation response.

Unidirectional growth ofL-cysteine hydrochloride monohydrate: first time observation as nonlinear optical material and its characterization

2010 ◽  
Vol 43 (4) ◽  
pp. 710-715 ◽  
Author(s):  
G. Bhagavannarayana ◽  
Suman Kumar ◽  
Mohd Shakir ◽  
S. K. Kushawaha ◽  
K. K. Maurya ◽  
...  
Keyword(s):  
Dielectric Constant ◽  
Dielectric Loss ◽  
Single Crystal ◽  
Nonlinear Optical ◽  
Grown Crystal ◽  
Optical Material ◽  
Nonlinear Optical Material ◽  
X Ray ◽  
Cysteine Hydrochloride ◽  
First Time

A bulk size (∼60 mm length and 20 mm diameter) single crystal of L-cysteine hydrochloride monohydrate has been successfully grown for the first time by the unidirectional Sankaranarayanan–Ramasamy method and found to be a nonlinear optical material by observing the second harmonic generation (SHG). The crystal structure has been confirmed by single-crystal as well as powder X-ray diffraction analysis. The Fourier transform–Raman technique was used to study the vibrational modes and functional groups. The grown crystal was found to be highly transparent. The crystalline perfection has been evaluated by high-resolution X-ray diffractometry and the grown crystal was found to be free from macroscopic defects such as structural grain boundaries. The relative SHG efficiency and laser damage threshold values were found to be 1.2 and 5.5 times that of a potassium dihydrogen phosphate crystal, respectively. The dielectric constant, dielectric loss and alternating current conductivity were measured by an impedance analyser over a wide range of frequency between 100 Hz and 5 MHz. The dielectric constant was found to be stable for the entire range of frequency with very small dielectric loss, making this material suitable for device applications. The present investigation reveals that the title compound, since it can be grown with desirable size along a predetermined direction and it is a good nonlinear optical material with the prerequisite optical and dielectric properties, is a good candidate for photonic or opto-electronic applications.

Second harmonic generation of a new nonlinear optical material: urea L-malic acid

2006 ◽  
Vol 2 (2) ◽  
pp. 112-114
Author(s):  
Ding-an Chen ◽  
Li Zhu ◽  
Yong-hong Hu ◽  
Ling-ling Xu ◽  
Yi-ping Cui
Keyword(s):  
Second Harmonic Generation ◽  
Harmonic Generation ◽  
Malic Acid ◽  
Nonlinear Optical ◽  
Second Harmonic ◽  
Optical Material ◽  
Nonlinear Optical Material
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