Phase Matching, Strong Frequency Doubling, and Outstanding Laser-Induced Damage Threshold in the Biaxial, Quaternary Diamond-like Semiconductor Li4CdSn2S7
At a Glance
Section titled āAt a Glanceā| Metadata | Details |
|---|---|
| Publication Date | 2020-11-25 |
| Journal | Chemistry of Materials |
| Authors | JianāHan Zhang, Stanislav S. Stoyko, Andrew J. Craig, P. Grima, Joshua W. Kotchey |
| Institutions | Duquesne University, Sanming University |
| Citations | 72 |
Abstract
Section titled āAbstractāThe 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-intensity laser applications. Distortions of the metal-sulfur tetrahedra in accordance with Paulingās second rule give rise to a significant net dipole moment, resulting in a strong second-order nonlinear optical susceptibility (Ļ(2)) of 35.0 Ā± 3.5 pm/V. Li4CdSn2S7 possesses an optical bandgap of 2.59 eV and an exceptional laser-induced damage threshold of >2.5 GW/cm2, which is more than 12.5 times greater than that of AgGaSe2 measured under identical irradiation conditions. Li4CdSn2S7 possesses a melting point of ā¼780 Ā°C and phase-matchability. All data indicate that Li4CdSn2S7 will outperform AgGaS2 and AgGaSe2 in difference frequency generation schemes for the generation of mid-IR radiation. New information on the recently reported Li2CdSiS4, which Li4CdSn2S7 also outperforms, is additionally included.
Tech Support
Section titled āTech SupportāOriginal Source
Section titled āOriginal SourceāReferences
Section titled āReferencesā- 2005 - Nonlinear Optical Crystals: A Complete Survey