Derivation of third-order nonlinear susceptibility of thin metal films as a delayed optical response

Article

关键词: ELECTRON THERMALIZATION;    GOLD;    ABSORPTION;    DYNAMICS;    AU;    AG;   

DOI  :  10.1103/PhysRevB.85.245423

来源: SCIE

【 摘 要 】

Metals typically have very large optical nonlinearities, whose origin is mainly of thermal character. We model the cubic nonlinearity of thin metal films by means of a delayed response derived from an improved version of the classic two-temperature model. We validate our model by comparison with ultrafast pump-probe experiments on gold films.

【 授权许可】

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