Simplified pixel level schematic showing four independently switchable storage capacitors.
Schematic of the experimental arrangement.
Top: A single pixel from the array detector compared with a result from a single point detector for a thinly coated sample. Bottom: The acquired data from the array detector showing the multiple echo returns from the interface between the coating and the substrate.
Top: Thickness profile obtained from echo times and known acoustic velocity. Bottom: Echo returns from the interface between the coating and substrate between two regions of differing thickness.
Coating thickness map over an extended region of the sample. Inset shows a zoom of a flat region where the standard deviation of the thickness is .
The portion and intensity of the optical wavelengths from the output of the SCG probe beam used in the experiment.
Top: The measured Brillouin oscillations for different probe wavelengths. Bottom: The corresponding Brillouin frequencies.
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