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.

ZnO Channel Waveguides for Nonlinear Optical Applications

2010 ◽  
Vol 49 (4) ◽  
pp. 04DG15 ◽  
Author(s):  
Edgar Yoshio Morales Teraoka ◽  
Tomohiro Kita ◽  
Atsushi Tsukazaki ◽  
Masashi Kawasaki ◽  
Yasuo Ohtera ◽  
...  
Keyword(s):  
Nonlinear Optical ◽  
Channel Waveguides ◽  
Optical Applications ◽  
Nonlinear Optical Applications

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.

A comparative study of side chain liquid crystalline polymers and their monomers designed for nonlinear optical applications

1991 ◽  
Vol 6 (3) ◽  
pp. 604-609 ◽  
Author(s):  
R.B. Findlay ◽  
T.J. Lemmon ◽  
A.H. Windle
Keyword(s):  
Transition Temperature ◽  
Liquid Crystalline ◽  
Nonlinear Optical ◽  
Liquid Crystalline Polymers ◽  
Significant Degree ◽  
Side Chain ◽  
Crystalline Polymers ◽  
Chemical Structures ◽  
Optical Applications ◽  
Nonlinear Optical Applications

Characterizations of side chain liquid crystalline polymers and their monomers point toward chemical structures and processing techniques which optimize their suitability for nonlinear optical applications. Polymers with methacrylate backbones and nitrostilbene or nitrobiphenyl side groups are studied; they tend to form smectic phases, but no solid crystallinity. By copolymerizing with nonmesogenic backbone units, the smectic-isotropic transition temperature can be controlled and may fall below the glass transition temperature. There is evidence for a significant degree of pretransitional alignment due to the surface fields, and mesogen ordering perpendicular to flow-induced backbone alignment. Very rapid cooling can suppress the highly scattering polydomain smectic phase.

Fabrication of ZnO channel waveguides for nonlinear optical applications

2011 ◽  
Author(s):  
Edgar Yoshio Morales Teraoka ◽  
Tomohiro Kita ◽  
Atsushi Tsukazaki ◽  
Masashi Kawasaki ◽  
Hirohito Yamada
Keyword(s):  
Nonlinear Optical ◽  
Channel Waveguides ◽  
Optical Applications ◽  
Nonlinear Optical Applications

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.

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.

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...

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