Nonlinear refraction and absorption measurements with chirped femtosecond laser pulses: Experiments and simulations
Journal
Journal of the Optical Society of America B: Optical Physics
Journal Volume
16
Journal Issue
4
Pages
651-661
Date Issued
1999
Author(s)
Abstract
A generalized model is formulated to explain analytically the transient behavior observed in linearly chirped femotesecond laser pulses. which incorporates the linear chirp parameter. The model is validated by measurements using chirped femtosecond laser pulses on fused silica. Based on this model, an extension to the two-beam coupling method is proposed which not only measures the nonlinear intensity index of refraction and the two-photon absorption coefficient by use of chirped laser pulses, but monitors the chirp as well.
Other Subjects
Fused silica; Light absorption; Light refraction; Nonlinear optics; Optical glass; Optical variables measurement; Pulsed laser applications; Refractive index; Semiconducting glass; Ultrafast phenomena; Chirp; Femtosecond laser pulses; Laser pulses
Type
journal article