title: Super-resolved spatial light interference microscopy.
abstract: We report a scheme to achieve resolution beyond the diffraction limit in spatial light interference microscopy (SLIM). By adding a grating to the optical path, the structured illumination technique can be used to improve the resolution by a factor of 2. We show that a direct application of the structured illumination technique, however, has proved to be unsuccessful. Through two crucial modifications, namely, one to the pupil plane of the objective and the other to the demodulation procedure, faithful phase information of the object is recovered and the resolution is improved by a factor of 2.
authors.affiliation: Center for Biophotonics Science and Technology, University of California, Davis, California 95817, USA. kqchu@ucdavis.edu
authors.forename: Kaiqin
authors.initials: K
authors.lastname: Chu
authors.forename: Zachary J
authors.initials: ZJ
authors.lastname: Smith
authors.forename: Sebastian
authors.initials: S
authors.lastname: Wachsmann-Hogiu
authors.forename: Stephen
authors.initials: S
authors.lastname: Lane
mesh_terms: D005583:Fourier Analysis; D008027:Light; D008857:Microscopy, Interference / Q000379:methods*; D011786:Quality Control