Two-photon frequency division multiplexing for functional in vivo imaging: a feasibility study.
Dmitri A. Tsyboulski, Natalia Orlova, Peter Ledochowitsch, Peter Saggau
This paper demonstrates the feasibility of two-photon frequency division multiplexing (2P-FDM) for recording calcium signals in brain tissue, showing a significant reduction in cross-talk and improved signal quality.