Papers › Single-pixel transmission matrix recovery via 2-photon fluorescence
Single-pixel transmission matrix recovery via 2-photon fluorescence
Shupeng Zhao, Bernhard Rauer, Lorenzo Valzania, Jonathan Dong, Ruifeng Liu, Fuli Li, Sylvain Gigan, Hilton B. de Aguiar
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Imaging at depth in opaque materials has long been a challenge. Recently, wavefront shaping has enabled significant advance for deep imaging. Nevertheless, most non-invasive wavefront shaping methods require cameras, lack the sensitivity for deep imaging under weak optical signals, or can only focus on a single "guidestar". Here, we retrieve the transmission matrix (TM) non-invasively using two-photon fluorescence exploiting a general single-pixel detection framework, allowing to achieve single-target focus on multiple guidestars spread beyond the memory effect range. In addition, if we assume memory effect correlations exist in the transmission matrix, we are able to significantly reduce the number of measurements needed.
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