Strong Kleinman-Forbidden Second Harmonic Generation in Chiral Sulfide: LaInSbS.
A new chiral sulfide family, LnInSbS (Ln = La, Pr, Nd), with its own structure type in space group P422 or its enantiomorph P422 has been synthesized by solid-state reaction. Remarkably, the La member shows the strongest Kleinman-forbidden second harmonic generation to date, with an intensity 1.5 ti...
| Publicado en: | Journal of the American Chemical Society Vol. 134; no. 4; pp. 1993 - 1996 |
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| Autores principales: | , , |
| Formato: | Artículo |
| Publicado: |
American Chemical Society
2/1/2012
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| Materias: | |
| Acceso en línea: | Ver este registro en EBSCOhost |
| Sumario: | A new chiral sulfide family, LnInSbS (Ln = La, Pr, Nd), with its own structure type in space group P422 or its enantiomorph P422 has been synthesized by solid-state reaction. Remarkably, the La member shows the strongest Kleinman-forbidden second harmonic generation to date, with an intensity 1.5 times that of commercial AgGaS at a laser wavelength of 2.05 μm, and exhibits type-I phase-matchable behavior. Density functional theory calculations and ab initio molecular dynamics simulations suggest that lattice vibrations may be responsible for the origin and magnitude of the strong SHG effect. |
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