Two-photon imaging to a depth of 1000 µm in living brains by use of a Ti:Al_2O_3 regenerative amplifier
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- 15 June 2003
- journal article
- Published by Optica Publishing Group in Optics Letters
- Vol. 28 (12), 1022-1024
- https://doi.org/10.1364/ol.28.001022
Abstract
It is shown that two-photon fluorescence images can be obtained throughout almost the entire gray matter of the mouse neocortex by using optically amplified femtosecond pulses. The achieved imaging depth approaches the theoretical limit set by excitation of out-of-focus fluorescence.Keywords
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