crystal growthsubstituted thienyl chalconesecond harmonic generationSHGThe second harmonic generation (SHG) of 29 kinds of thienyl chalcone derivatives with a thiophene ring were examined. A series of 1-{2-(5-bromothienyl)}-3-(4'-halophenyl)propene-3-one showed high SHG activity. Especially 1-...
L. Quasi-phase-matched second harmonic generation: tuning and tolerances. IEEE J. Quantum Electron. 28, 2631–2654 (1992). Article ADS Google Scholar Bruker APEX3 (Bruker Nano, Inc., 2019). Sheldrick, G. M. SHELXT–Integrated space-group and crystal-structure determination. Acta Crystallogr...
Liquid crystal polymersOrganometallicsFerroelectric materialsSecond harmonic generationNonlinear opticsMolecular structureAbsorption spectroscopyCharacterizationSynthesis (chemical)Coordination reactionsThe second harmonic generation (SHG) parameters for metal-containing ferroelectric liquid crystals are reported for the first...
Second-harmonic generationchiralityferroelectric liquid crystalcholesteric liquid crystalnonlinear opticsthresholdless antiferroelectricitySecond-Harmonic Generation (SHG) occurs under special circumstances in chiral liquid crystals, such as Ferroelectric Liquid Crystals and, induced by an external electric field, ...
The second harmonic generation (SHG) in the ferroelectric liquid crystal (FLC) state has been studied as functions of electric field strength, rotating angle, temperature and molecular structure. It has been confirmed that a sharp angularly phase-matching curve of the SHG controlled by an electric...
Second-harmonic generation using -quasi-phasematching in a GaAs whispering-gallery-mode microcavity Abstract The crystal symmetry in materials such as GaAs can enable quasi-phasematching for efficient optical frequency conversion without poling, twinning or other engineered domain inversions....
Resonant enhancements of second‐harmonic generation under normal incidence of light of up to two orders of magnitude with respect to the same laminate metamaterial on a glass substrate under oblique incidence of light are found experimentally. The nonlinear optical resonances in the range of 800–...
harmonic radiation by second-harmonic generation. A second crystal is provided that is made of the same optically-nonlinear material as the first crystal. The first and second crystals are bonded together along a first planar interface. The first planar interface is tilted with respect to the ...
Severine Diziain, Reinhard Geiss, Matthias Zilk, Frank Schrempel, Ernst-Bernhard Kley, Andreas Tunnermann, and Thomas Pertsch. Second harmonic generation in free-standing lithium niobate photonic crystal l3 cavity. Applied Physics Letters, 103(5):051117-051117- 4, August 2013....
Second harmonic generationWe propose a slow-light photonic crystal waveguide, which uses a combination of circular and elliptical air holes arranged in a hexagonal lattice with the background material of silicon nitride (refractive index n = 2.06). Large value of normalized delay bandwidth product (...