Abstract
Digital holography is widely used as a high resolution metrological technique in many domains. As a coherent imaging method, the speckle noise is inherent in the system and degrades image quality and optical resolution. An improved fiber-space-hybrid lensless Fourier-transform digital holography system is proposed. Multiple holograms are recorded with different oblique illumination. All hologram are reconstructed individually using the same program and each reconstructed image has a different speckle pattern. The oblique illumination system is optimized by an automatic two dimensional scanning of the fiber tip. Thus only a limited illumination area of light spot is demanded. By averaging the reconstructed images, the speckle noise of the reconstructed image is reduced. We demonstrate the effectiveness of the technique experimentally. The proposed system is convenient and practical. It can lead to a high quality result automatically.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
