Scanning holographic microscopy with resolution exceeding the Rayleigh limit of the objective by superposition of off-axis holograms
| Autor: | Joseph Rosen, Yoshitaka Tada, Guy Indebetouw, Gary Brooker |
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| Rok vydání: | 2007 |
| Předmět: |
Physics
Microscopy Fresnel zone business.industry Materials Science (miscellaneous) Resolution (electron density) Holography Physics::Optics Models Theoretical Industrial and Manufacturing Engineering law.invention Optics law Image Processing Computer-Assisted Fresnel number Digital holographic microscopy Near-field scanning optical microscope Business and International Management business Digital holography |
| Zdroj: | Applied optics. 46(6) |
| ISSN: | 1559-128X |
| Popis: | We present what we believe to be a new application of scanning holographic microscopy to superresolution. Spatial resolution exceeding the Rayleigh limit of the objective is obtained by digital coherent addition of the reconstructions of several off-axis Fresnel holograms. Superresolution by holographic superposition and synthetic aperture has a long history, which is briefly reviewed. The method is demonstrated experimentally by combining three off-axis holograms of fluorescent beads showing a transverse resolution gain of nearly a factor of 2. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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