US 12,270,646 B2
Broadband interferometric confocal microscope
Arturo Alejandro Canales Benavides, Rochester, NY (US); Paul Scott Carney, Washington, DC (US); and James Matthew Zavislan, Canaandaigua, NY (US)
Assigned to University of Rochester
Filed by University of Rochester, Rochester, NY (US)
Filed on Aug. 23, 2022, as Appl. No. 17/821,613.
Prior Publication US 2024/0068797 A1, Feb. 29, 2024
Int. Cl. G01B 9/02 (2022.01); G01B 9/02091 (2022.01); G02B 21/00 (2006.01); G11B 7/14 (2012.01)
CPC G01B 9/02042 (2013.01) [G01B 9/02091 (2013.01); G02B 21/0056 (2013.01); G11B 7/14 (2013.01)] 21 Claims
OG exemplary drawing
 
1. A scanning imaging method comprising:
splitting an optical beam into a reference beam and a scanning beam;
generating an interference map by, for each of a plurality of sections of a sample, generating a respective interference-map element of the interference map by:
illuminating the section with the scanning beam to generate a plurality of scattered beams, each scattered beam corresponding to a respective spatial frequency of the scanning beam;
attenuating the reference beam;
generating a plurality of interference signals at least in part by interferometrically combining the plurality of scattered beams and the attenuated reference beam while modulating a phase difference between the reference beam and the plurality of scattered beams; and
detecting the plurality of interference signals to yield the respective interference-map element; and
processing the interference map to produce a reconstructed image of the sample.