Potassium trihydrogen dioxalate dihydrate (KTO) nonlinear optical (NLO) single crystal for optical limiting application

Ramki Chakaravarthy,Jiang Tao,Chang Liu,Yu Liu,Wei Ren,Ezhil Vizhi R

SSRN Electronic Journal（2023）

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摘要

•KTO single crystal crystallized in triclinic system with P1¯ space group.•Electronic band structure (DFT) shows an insulator energy bandgap.•Dehydration cause the SHG from the centrosymmetry system.•Negative nonlinearity arises from the self-defocusing effect in KTO.•Multi-photon absorption enables the optical limiting response in KTO.

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关键词

Growth from solutions,Crystal structure,Density functional theory,Second harmonic generation,Third harmonic generation,Optical limiting

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