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Transmission matrix approaches for non-linear fluorescence excitation through multiple scattering media

Authors :
Mounaix, Mickael
Ta, Duc Minh
Gigan, Sylvain
Source :
Optics Letters Vol. 43, Issue 12, pp. 2831-2834 (2018)
Publication Year :
2018

Abstract

Several matrix approaches were developed to control light propagation through multiple scattering media under illumination of ultrashort pulses of light. These matrices can be recorded either with spectral or temporal resolution. Thanks to wavefront shaping, temporal and spatial refocusing have been demonstrated. In this work, we study how these different methods can be exploited to enhance a two-photon excitation fluorescence process. We first compare the different techniques on micrometer-size isolated fluorescent beads. We then demonstrate point-scanning imaging of such fluorescent microbeads located after a thick scattering medium, at a depth where conventional imaging would be impossible because of scattering effects.<br />Comment: 5 pages, 4 figures

Subjects

Subjects :
Physics - Optics

Details

Database :
arXiv
Journal :
Optics Letters Vol. 43, Issue 12, pp. 2831-2834 (2018)
Publication Type :
Report
Accession number :
edsarx.1803.07198
Document Type :
Working Paper
Full Text :
https://doi.org/10.1364/OL.43.002831