Single-snapshot and intensity-resolved two-photon fluorescence measurements. Academic Article

abstract

• We present a single-snapshot (SSS) method for obtaining intensity-resolved two-photon fluorescence (TPF). This simple method uses a digital camera to image the TPF spot on a liquid dye jet. By making a comparison between the local laser and TPF intensities, TPF probabilities are reconstructed. We compare our intensity-resolved TPF results with those obtained by the more common intensity scanning (IS) and z-scan methods. The dependence of the TPF probability on intensity obtained by the SSS method for coumarin-30 exhibits a clear maximum around I approximately 4 x 10(12) W/cm(2) and a postsaturation decrease, while no such effects were found in the data obtained by the other methods. Additionally, theoretical models are presented to extract the overall probability from within the volume integral. To our knowledge, we present the first reported measurements of such intensity-resolved TPF.

authors

• Schuessler, Hans

published proceedings

• Opt Lett

author list (cited authors)

• Strohaber, J., Poudel, M. P., Kolomenskii, A. A., & Schuessler, H. A.

citation count

• 2

publication date

• January 2010

publisher

• Optica Publishing Group  Publisher

keywords

• 40 Engineering
• 4012 Fluid Mechanics And Thermal Engineering
• 51 Physical Sciences

Digital Object Identifier (DOI)

• 10.1364/OL.35.000022

start page

• 22

end page

• 24

volume

• 35

issue

• 1

URL

• http://dx.doi.org/10.1364/ol.35.000022