Super-resolution in incoherent optical imaging using synthetic aperture with Fresnel elements.
We present a new lensless incoherent holographic system operating in a synthetic aperture mode. Spatial resolution exceeding the Rayleigh limit of the system is obtained by tiling digitally several Fresnel holographic elements into a complete Fresnel hologram of the observed object. Each element is acquired by the limited-aperture system from different point of view. This method is demonstrated experimentally by combining three holographic elements recorded with white light illumination which is emitted from a binary grating.
Katz
Barak
B
Department of Electrical and Computer Engineering Ben Gurion University of the Negev, Beer-Sheva, Israel. barakk@ee.bgu.ac.il
Rosen
Joseph
J
D004867:Equipment Design; D019544:Equipment Failure Analysis; D006696:Holography / Q000295:instrumentation*; D007089:Image Enhancement / Q000295:instrumentation*; D021621:Imaging, Three-Dimensional / Q000295:instrumentation*; D007909:Lenses; D055096:Optical Devices; D012031:Refractometry / Q000295:instrumentation*; D041623:Tomography, Optical Coherence / Q000295:instrumentation*