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   Articles with "phase matching" as a keyword



Backward Phase Matching for Second Harmonic Generation in Negative‐Index Conformal Surface Plasmonic Metamaterials

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recommendations! Published in 2018 at "Advanced Science"

DOI: 10.1002/advs.201800661

Abstract: Abstract Backward phase matching, which describes counterpropagating fundamental and harmonic waves in a negative‐index medium, is one of the most intriguing phenomena in nonlinear metamaterials. Predicted theoretically decades ago, however, it is still a challenging… read more here.

Keywords: surface; backward phase; negative index; geometry ... See more keywords

Phase Matching via Plasmonic Modal Dispersion for Third Harmonic Generation

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recommendations! Published in 2022 at "Advanced Science"

DOI: 10.1002/advs.202201180

Abstract: The overall effectiveness of nonlinear optical processes along extended nonlinear media highly depends on the fulfillment of the phase‐matching condition for pump and generated fields. This is traditionally accomplished by exploiting the birefringence of nonlinear… read more here.

Keywords: modal dispersion; phase matching; plasmonic modal; third harmonic ... See more keywords
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Thermal kinetics, 3D-FMOs and spectral phase matching of 2-aminopyridinium diphenylacetate diphenylacetic acid crystal

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recommendations! Published in 2020 at "Journal of Materials Science: Materials in Electronics"

DOI: 10.1007/s10854-020-04011-4

Abstract: The bulk size title crystal is grown by adopting temperature lowering technique. The intermolecular charge transfer reactions, frontier molecular energy gaps and nonlinear optical properties have been calculated theoretically by density functional theory. The investigations… read more here.

Keywords: fmos spectral; thermal kinetics; crystal; phase matching ... See more keywords
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Phase Matching, Strong Frequency Doubling, and Outstanding Laser-Induced Damage Threshold in the Biaxial, Quaternary Diamond-like Semiconductor Li4CdSn2S7

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recommendations! Published in 2020 at "Chemistry of Materials"

DOI: 10.1021/acs.chemmater.0c03268

Abstract: The novel diamond-like Li4CdSn2S7 possesses many outstanding attributes that enable it to be a new, well-rounded front-runner among infrared (IR) nonlinear-optical materials, especially for high-in... read more here.

Keywords: frequency doubling; strong frequency; matching strong; diamond like ... See more keywords

Ba5Ga2SiO4S6: a Phase-Matching Nonlinear Optical Oxychalcogenide Design via Structural Regulation Originated from Heteroanion Introduction.

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recommendations! Published in 2022 at "Inorganic chemistry"

DOI: 10.1021/acs.inorgchem.2c03577

Abstract: Tailored structural regulation to obtain a new non-centrosymmetric (NCS) compound with excellent optical properties is highly desirable but remains a challenge for nonlinear optical (NLO) material design. In this work, centrosymmetric celsian-type BaGa2Si2O8 was selected… read more here.

Keywords: phase matching; introduction; nonlinear optical; design ... See more keywords

Doubling Polarizability Anisotropy of The Tetrahedral Motifs to Achieve Phase Matching for Melilite-Type Compound.

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recommendations! Published in 2025 at "Inorganic chemistry"

DOI: 10.1021/acs.inorgchem.5c03431

Abstract: Oxychalcogenides are extensively studied as infrared nonlinear optical (NLO) materials, as they may hybridize the advantages of oxides and chalcogenides. Here, new Eu2Ga2GeOS6 (EGGOS) was designed using Eu2Ga2GeS7 (EGGS) as the parent through anion partial… read more here.

Keywords: polarizability anisotropy; achieve phase; doubling polarizability; phase matching ... See more keywords

Quasi-phase-matching enabled by van der Waals stacking

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recommendations! Published in 2024 at "Nature Communications"

DOI: 10.1038/s41467-024-53472-2

Abstract: Quasi-phase matching (QPM) is a technique extensively utilized in nonlinear optics for enhancing the efficiency and stability of frequency conversion processes. However, the conventional QPM relies on periodically poled ferroelectric crystals, which are limited in… read more here.

Keywords: quasi phase; van der; waals stacking; phase matching ... See more keywords

Room temperature 90° phase-matching in zirconium and magnesium co-doped lithium niobate crystals

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recommendations! Published in 2018 at "Scientific Reports"

DOI: 10.1038/s41598-018-22205-z

Abstract: Laser has been widely used in many aspects, by now it is difficult to get each frequency that we want, and frequency conversion is an effective way to obtain different frequency laser through a nonlinear… read more here.

Keywords: phase matching; temperature phase; temperature; room temperature ... See more keywords

Rare-Earth Oxychalcogenide Eu2ZnGe2OS6: A Phase-Matching Infrared Nonlinear Optical Material with [GeOS3] units

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recommendations! Published in 2024 at "CrystEngComm"

DOI: 10.1039/d4ce01051e

Abstract: Oxychalcogenides have been highly anticipated as nonlinear optical (NLO) crystals because of their excellent optical properties. Herein, a rare-earth oxychalcogenide Eu2ZnGe2OS6 was successfully designed and synthesized. It crystallizes in the... read more here.

Keywords: nonlinear optical; rare earth; phase matching; eu2znge2os6 phase ... See more keywords

Pb3.5GeS4Br3: The first phase-matching thiogermanate halide infrared nonlinear optical material

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recommendations! Published in 2024 at "Inorganic Chemistry Frontiers"

DOI: 10.1039/d4qi00293h

Abstract: Two new thiohalides Pb3GeS4Br2 and Pb3.5GeS4Br3 have been synthesized by introducing Pb2+ into the thiogermanate system. The compounds crystallize in centrosymmetric P21/c (Pb3GeS4Br2) and non-centrosymmetric P63 (Pb3.5GeS4Br3) space groups, respectively.... read more here.

Keywords: 5ges4br3 first; first phase; thiogermanate halide; matching thiogermanate ... See more keywords

Coupled wave equation study of non-collinear phase-matching second harmonic generation and nonlinear Cherenkov radiation generated on the surface of bulk lithium niobate crystals doped with magnesium medium

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recommendations! Published in 2018 at "Journal of Applied Physics"

DOI: 10.1063/1.5035507

Abstract: In this article, on the basis of our previous research on bandwidth of non-collinear phase-matching second harmonic generation (SHG) and nonlinear Cherenkov radiation (NCR) generated on the boundary of bulk nonlinear crystal, we demonstrated theoretically… read more here.

Keywords: collinear phase; non collinear; coupled wave; phase matching ... See more keywords