Structured illumination for the extension of imaging interferometric microscopy.
Structured illumination applied to imaging interferometric microscopy (IIM) allows extension of the resolution limit of low numerical aperture objective lenses to ultimate linear systems limits (<approximately lambda/4 in air) without requiring a reference beam around the objective lens. Instead, the reference beam is provided by an illumination beam just at the edge of the optical system numerical aperture resulting in a shift of the recorded spatial frequencies (equivalent to an intermediate frequency). The restoration procedure is discussed. This technique is adaptable readily to existing microscopes, since extensive access to the imaging system pupil plane is not required.
Neumann
Alexander
A
Department of Physics and Astronomy, Center for High Technology Materials, University of New Mexico, 1313 Goddard SE, Albuquerque, New Mexico, USA. aneumann@chtm.unm.edu
Kuznetsova
Yuliya
Y
Brueck
S R
SR
D000465:Algorithms; D015374:Biosensing Techniques; D003952:Diagnostic Imaging / Q000379:methods; D004867:Equipment Design; D007091:Image Processing, Computer-Assisted; D007368:Interferometry / Q000379:methods*; D007909:Lenses; D008027:Light; D008029:Lighting / Q000379:methods; D008853:Microscopy / Q000379:methods*; D015233:Models, Statistical; D055095:Optics and Photonics; D010775:Photic Stimulation / Q000379:methods