How to see the invisible? The limits of two-photon vision (IMAGE)

Institute of Physical Chemistry of the Polish Academy of Sciences

How to see the invisible? The limits of two-photon vision

Caption

Comparison of visual thresholds for infrared and visible light at different laser beam focus settings. The results show that two-photon vision is highly sensitive to precise light focusing on the retina /Photo: Optica Publishing Group

Credit

Photo: Optica Publishing Group

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