FIELD: physics.
SUBSTANCE: microscope has a zone plate as a focusing element, where a microscopic object is illuminated with monochromatic radiation. High linear resolution is achieved by using a zone plate with aperture ratio greater than one. The microscope can employ a modified zone plate with an opaque central part which makes up not less than 50% of the entire surface area of the plate.
EFFECT: achieving high resolution.
7 cl, 3 dwg
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Authors
Dates
2012-01-27—Published
2010-05-20—Filed