Superresolving scanning optical microscopy using holographic optical processing

Journal Article · Fri Jan 01 04:00:00 EST 1993 · Journal of the Optical Society of America, Part A: Optics and Image Science; (United States)

DOI:https://doi.org/10.1364/JOSAA.10.000059· OSTI ID:6703126

Walker, J G; Pike, E R; Davies, R E; Young, M R ^[1]; Brakenhoff, G J ^[2]; Bertero, M ^[3]

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1. King's College London (United Kingdom)
2. Univ. of Amsterdam (Netherlands)
3. Univ. of Genoa (Italy)

Two novel superresolving scanning microscopes, one of which uses coherent imaging and the other incoherent imaging, are described. The optical arrangement used int he coherent microscope is similar to that in a scanning confocal microscope with the detector pinhole replaced by a special holographic mask, a Fourier lens, and a pinhole. The incoherent design uses two intensity-transmittance masks, two integrating detectors, and an electronic subtractor. The design of the microscopes is based on the results of singular-system theory, and the mask forms are calculated by means of this analysis. These arrangements obviate the need for an array of detectors to implement singular-system processing, and in the coherent case direct phase measurement is no longer required. Experimental results are presented that demonstrate a significant resolution improvement for a one-dimensional low-numerical-aperture coherent microscope. 15 refs., 3 figs.

• OSTI ID: 6703126
• Journal Information: Journal of the Optical Society of America, Part A: Optics and Image Science; (United States), Journal Name: Journal of the Optical Society of America, Part A: Optics and Image Science; (United States) Vol. 10:1; ISSN 0740-3232; ISSN JOAOD6
• Country of Publication: United States
• Language: English

Related Subjects

440600* -- Optical Instrumentation-- (1990-)
47 OTHER INSTRUMENTATION
661300 -- Other Aspects of Physical Science-- (1992-)
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
DATA
DESIGN
DIFFERENTIAL EQUATIONS
EQUATIONS
EXPERIMENTAL DATA
FOURIER TRANSFORMATION
HOLOGRAPHY
INFORMATION
INTEGRAL TRANSFORMATIONS
MICROSCOPES
MICROSCOPY
NUMERICAL DATA
OPTICAL MICROSCOPY
RESOLUTION
SPATIAL RESOLUTION
TRANSFORMATIONS