Abstract
While digital holographic imaging can record both light intensity and phase information, its photodetector resolution lags behind that of optical dry plates, often resulting in a compromise between resolution and field of view. To overcome this limitation, we present an imaging method that combines Kramers–Kronig relations with wavelength division multiplexing, enabling large-field digital holographic imaging without sacrificing resolution. We validate the effectiveness of this method through simulation and example experiment, and demonstrate successful expansion of the field of view by 3 times with three color lasers, while improving the resolution.
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