Colored object recognition by digital holography and a hydrogen Raman shifter
Multi-wavelength holography is demonstrated with a H_2 Raman shifter that is pumped with
an elliptically-polarized pulsed 532 nm beam to produce temporally coherent, intense,
polarized output lines. Digital holograms of two-dimensional colored objects are recorded
using Raman output lines at 630.4 nm (S_05, Red), 532 nm (Rayleigh, Green) and 435.7 nm
(aS_10, Blue). Object reconstruction is done numerically via the convolution method and
colored object recognition is achieved by multi-channel correlation of the Red, Green, and …
an elliptically-polarized pulsed 532 nm beam to produce temporally coherent, intense,
polarized output lines. Digital holograms of two-dimensional colored objects are recorded
using Raman output lines at 630.4 nm (S_05, Red), 532 nm (Rayleigh, Green) and 435.7 nm
(aS_10, Blue). Object reconstruction is done numerically via the convolution method and
colored object recognition is achieved by multi-channel correlation of the Red, Green, and …
Multi-wavelength holography is demonstrated with a H_2 Raman shifter that is pumped with an elliptically-polarized pulsed 532 nm beam to produce temporally coherent, intense, polarized output lines. Digital holograms of two-dimensional colored objects are recorded using Raman output lines at 630.4 nm (S_05, Red), 532 nm (Rayleigh, Green) and 435.7 nm (aS_10, Blue). Object reconstruction is done numerically via the convolution method and colored object recognition is achieved by multi-channel correlation of the Red, Green, and Blue reconstructions of the reference and the target object.
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