From basic research to industrial partnership

Proof of principle

Correlation directe

Here is a 'classical' time domain OCT line obtained with our system without the depth resolved information (without the dispersive prism). We clearly see an under sampling of the interference pattern due to the grating. The sample under test is a stack of two microscope cover slides sndwiching an eosine solution layer. 4 interfaces are clearly observed.

correlation spectralement résolue

The sample is here the same but now with spectroscopic features depth resolved (the prism P has been added). The vertical axis is now the wavelength in nm. We clearly observe on last two interfaces the absorption of the eosine under 550nm. This is an instantaneous grabing of the signal. The total number of sampled points in the depth wavelength plane is directly related to the total number of pixels of the 2D detector as the signal is deirectly acquired in the depth wavelength plane.

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