High-resolution digital transmission microscopy—a Fourier holography approach
| Autor: | Thomas Lenart, Peter Egelberg, Mikael Sebesta, Sven-Göran Pettersson, Bengt Bengtsson, Mats Gustafsson |
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| Rok vydání: | 2004 |
| Předmět: |
Diffraction
Physics CMOS sensor business.industry Mechanical Engineering Holography Image plane Atomic and Molecular Physics and Optics Electronic Optical and Magnetic Materials law.invention Numerical aperture Digital image Optics law Charge-coupled device Electrical and Electronic Engineering business Digital holography |
| Zdroj: | Optics and Lasers in Engineering. 41:553-563 |
| ISSN: | 0143-8166 |
| DOI: | 10.1016/s0143-8166(02)00214-2 |
| Popis: | A spherical reference field is used to construct a digital holographic system with a demonstrated resolution up to 228 line pairs per mm. The reference field originates from a GRIN lens placed 1 mm from the illuminated object. This allows the use of a standard sensor to record the hologram with the required numerical aperture. The image is determined by evaluation of the Rayleigh–Sommerfeld diffraction integral that relates the object field in the image plane to the object field in the sensor plane. Experimental results are given for two charge coupled device sensors and one complementary metal-oxide-semiconductor active pixel sensor. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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