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Published on: March 6, 2016
Enhanced axial confinement of sum-frequency generation in a temporal focusing setup
Michael E Durst1, Adam A Straub, Chris Xu
1School of Applied and Engineering Physics, Cornell University, Ithaca, New York 14853, USA. med43@cornell.edu
Abstract:
We demonstrate enhanced axial confinement in a temporal focusing setup with a shaped spectrum and a narrow emission filter, achieving a reduction of 1 order of magnitude of the out-of-focus background when compared with conventional point-scanning two-photon microscopy. By rejecting the background in the optical domain, our technique circumvents the noise problems common in other background subtraction techniques.
