Fifth-order nonlinear susceptibility: Effect of third-order resonances in a classical theory

被引：14

作者：

Besse, Valentin ^{[1
]}

Leblond, Herve ^{[1
]}

Boudebs, Georges ^{[1
]}

机构：

[1] Univ Angers, LUNAM Univ, Lab Photon Angers, EA 4464, F-49000 Angers, France

来源：

PHYSICAL REVIEW A | 2015年 / 92卷 / 01期

关键词：

OPTICAL NONLINEARITIES; ABSORPTION;

D O I：

10.1103/PhysRevA.92.013818

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We compute the fifth-order nonlinear susceptibility in the frame of a classical model based on an anharmonic oscillator, taking into account the local field corrections. A third-harmonic resonance is evidenced, which explains the strong enhancement of some measured values of the corresponding nonlinear index and its sign changes with the wavelength. The ratio between the fifth-order nonlinear index and the fifth-order nonlinear absorption is computed and is in good agreement with experimental data measured in carbon disulfide CS2.

引用

页数：10

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