Title

Group velocity dispersion of dyes in solution measured with white-light interferometry

Document Type

Article

Publication Date

1-2011

Publication Title

Applied Optics

Department

Physics

Abstract

The group velocity dispersion (GVD) coefficient of four different dyes in solution is measured as a function of wavelength and concentration using a white-light Michelson interferometer. We find that the wavelength dependence of the GVD can be considerably different at wavelengths above and below the absorption resonance in a dye. Above the absorption resonance, the dye molecules can make a strong, wavelength-dependent contribution to the GVD of the solution. Below the absorption resonance, the dye molecules tend to contribute negligibly to the GVD of the solution. We find that the contribution of the dye molecules to the GVD can be modeled quite accurately using a simple Lorentz model with parameters set using the measured linear absorption properties of the dye. © 2011 The Optical Society (http://www.opticsinfobase.org/ao/submit/review/copyright_permissions.cfm)

Volume

50

Issue

2

pp.

194-202

ISSN

1559-128X