Investigation of Transition Metal-Xanthate Complexes for Nonlinear Optical Applications

1998 ◽  
Vol 519 ◽  
Author(s):  
David E. Zelmon ◽  
Zewdu Gebeyehu ◽  
David Tomlin ◽  
Thomas M. Cooper
Keyword(s):  
Nonlinear Optical ◽  
Second Harmonic ◽  
Frequency Doubling ◽  
Harmonic Signal ◽  
Metal Salts ◽  
Potassium Salts ◽  
Metal Xanthate ◽  
Optical Applications ◽  
Nonlinear Optical Applications ◽  
Second Harmonic Signal

AbstractWe have synthesized several metal xanthate complexes from metal salts and xanthate potassium salts. Powders of several of the materials were sorted and tested for their nonlinear optical properties. Cadmium xanthate demonstrated phase matchability for frequency doubling of 1.06 micron light and generated a very strong second harmonic signal.

In Situ Measurement of the Second Harmonic Signal of Adsorbing Nonlinear Optical Ionically Self-Assembled Monolayers.

2001 ◽  
Vol 707 ◽  
Author(s):  
C. Brands ◽  
P.J. Neyman ◽  
M.T. Guzy ◽  
S. Shah ◽  
K.E Van Cott ◽  
...  
Keyword(s):  
Nonlinear Optical ◽  
Second Harmonic ◽  
Salt Water ◽  
Harmonic Signal ◽  
Deionized Water ◽  
Self Assembled Monolayers ◽  
Assembled Monolayers ◽  
Self Assembled ◽  
Second Harmonic Signal

ABSTRACTIonically self-assembled monolayers (ISAMs) have recently been shown to spontaneously exhibit a polar ordering that gives rise to substantial second order nonlinear optical response. The deposition of ISAMs has been studied in situ via second harmonic generation. This is a particularly sensitive probe of the growth of nanometer-thick films since the centrosymmetry of the immersion solutions, the substrate, and the container yields no SHG contribution from these bulk components. Upon immersion in the NLO-active polyelectrolyte solution, the SHG rises sharply over the first minute. When a film is immersed into salt water, the SHG decreases significantly only to be restored when the salt solution is replaced with deionized water.

Characterization of LiInS2 and LiInSe2 single crystals for nonlinear optical applications

2001 ◽  
Vol 692 ◽  
Author(s):  
Ludmila Isaenko ◽  
Alexander Yelisseyev ◽  
Sergei Lobanov ◽  
Alexander Panich ◽  
Vitaly Vedenyapin ◽  
...  
Keyword(s):  
Nuclear Magnetic Resonance ◽  
Point Defects ◽  
Nonlinear Optical ◽  
Color Change ◽  
Second Harmonic ◽  
X Ray ◽  
Native Point Defects ◽  
Optical Applications ◽  
Nonlinear Optical Applications

AbstractX-ray structural analysis, nuclear magnetic resonance, optical spectroscopy and second harmonic generation were used to characterize the new nonlinear crystals LiInS2 and LiInSe2 which possess maximum band gap (3.59 and 2.86 eV at 300 K, respectively) among ternary chalcogenides. As grown crystals are only slightly colored while color change after annealing is due to native point defects.

The role of cations in hydrothermal synthesis of nonlinear optical sodium niobate nanocrystals

Nanoscale ◽  
2020 ◽  
Vol 12 (37) ◽  
pp. 19223-19229
Author(s):  
Nico-Dominik Kohlenbach ◽  
Christian Kijatkin ◽  
Matthias König ◽  
Markus Haase ◽  
Mirco Imlau ◽  
...  
Keyword(s):  
Hydrothermal Synthesis ◽  
Nonlinear Optical ◽  
Second Harmonic ◽  
Harmonic Signal ◽  
Sodium Niobate ◽  
Crucial Step ◽  
Second Harmonic Signal

Hydrothermal synthesized NaNbO3 nanoparticles exhibit a second harmonic signal compareable to KNbO3. Insertion of cations is a crucial step in hydrothermal synthesis.

Growth, optical and thermal characterization of Semiorganic crystal: Diglycine Perchlorate for second-order nonlinear optical applications

2019 ◽  
Vol 28 (03) ◽  
pp. 1950023
Author(s):  
M. Suresh Kumar ◽  
K. Rajesh ◽  
G. V. Vijayaraghavan ◽  
S. Krishnan
Keyword(s):  
Nonlinear Optical ◽  
Second Harmonic ◽  
Damage Threshold ◽  
Thermal Characterization ◽  
Dielectric Study ◽  
Second Harmonic Generation Efficiency ◽  
Optical Applications ◽  
Laser Induced Damage ◽  
Lcr Meter ◽  
Nonlinear Optical Applications

Optically good quality Diglycine Perchlorate (DGPCL) single crystals were grown by the solution growth slow evaporation method. Single crystal X-ray diffraction of DGPCL was analyzed in this paper. From the FTIR study, the functional groups of crystal were identified and confirmed. UV–Vis absorption spectrum was examined, which shows that large transmittance in the entire visible and NIR region and the value of optical band gap were determined. The Second Harmonic Generation efficiency of the crystal was determined by the Kurtz–Perry powder method, which authenticates nonlinear optical property of the title material. Thermal study with kinetic parameter calculations was analyzed. Laser Induced Damage threshold of the sample crystal was determined. The dielectric study was carried out by determining dielectric constant, dielectric loss and ac conductivity using LCR meter and the variations of these parameters with frequency and temperature were analyzed.

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.

Fabrication of Poled Polymer Dans Waveguides and First Observation of Shg by Counter-Propagating Guided Waves

1993 ◽  
Vol 328 ◽  
Author(s):  
Akira Otomo ◽  
George I. Stegeman ◽  
Christian Bosshard ◽  
Silvia Mittler-Neher ◽  
Winfried H. G. Horsthuis ◽  
...  
Keyword(s):  
Nonlinear Optical ◽  
Guided Waves ◽  
Second Harmonic ◽  
Side Chain ◽  
Poling Field ◽  
Low Loss ◽  
Propagating Waves ◽  
Channel Waveguides ◽  
Optical Applications ◽  
Nonlinear Optical Applications

ABSTRACTPlane-parallel poled, low loss, channel waveguides are fabricated with a large poling field (200V/μm) in 4-dimethylamino-4'-nitrostilbene (DANS) side-chain polymers. The parallel poled film leads to efficient nonlinear optical applications for TE guided Modes. We demonstrate surface emitting second harmonic generation due to mixing of counter propagating waves with this film.

Inversion symmetry broken in 2H phase vanadium-doped molybdenum disulfide

Nanoscale ◽  
2021 ◽  
Author(s):  
Hanjun Jiang ◽  
Lu Zheng ◽  
Jing Wang ◽  
Manzhang Xu ◽  
Xuetao Gan ◽  
...  
Keyword(s):  
Nonlinear Optical ◽  
Second Harmonic ◽  
Transition Metal Dichalcogenides ◽  
Inversion Symmetry ◽  
Two Dimensional ◽  
Metal Dichalcogenides ◽  
Shg Efficiency ◽  
Optical Applications ◽  
Layered Transition Metal ◽  
Nonlinear Optical Applications

Two-dimensional (2D) layered transition metal dichalcogenides (TMDs) have received much attention in nonlinear optical applications due to their unique crystal structures and second harmonic generation (SHG) efficiency. However, SHG signals...

In Situ Measurement of the Second Harmonic Signal of Adsorbing Nonlinear Optical Ionically Self-assembled Monolayers

2001 ◽  
Vol 710 ◽  
Author(s):  
C. Brands ◽  
P.J. Neyman ◽  
M.T. Guzy ◽  
S. Shah ◽  
K.E Van Cott ◽  
...  
Keyword(s):  
Nonlinear Optical ◽  
Second Harmonic ◽  
Salt Water ◽  
Harmonic Signal ◽  
Deionized Water ◽  
Self Assembled Monolayers ◽  
Assembled Monolayers ◽  
Self Assembled ◽  
Second Harmonic Signal

ABSTRACTIonically self-assembled monolayers (ISAMs) have recently been shown to spontaneously exhibit a polar ordering that gives rise to substantial second order nonlinear optical response. The deposition of ISAMs has been studied in situ via second harmonic generation. This is a particularly sensitive probe of the growth of nanometer-thick films since the centrosymmetry of the immersion solutions, the substrate, and the container yields no SHG contribution from these bulk components. Upon immersion in the NLO-active polyelectrolyte solution, the SHG rises sharply over the first minute. When a film is immersed into salt water, the SHG decreases significantly only to be restored when the salt solution is replaced with deionized water.

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