US 12,393,161 B2
Device and method for calibration-free phase shifting procedure for self-interference holography
Gary Brooker, Rockville, MD (US); and Nisan Siegel, Silver Spring, MD (US)
Assigned to CELLOPTIC, INC., Rockville, MD (US)
Filed by CellOptic, Inc., Rockville, MD (US)
Filed on Dec. 6, 2021, as Appl. No. 17/543,240.
Application 17/543,240 is a continuation in part of application No. PCT/US2020/040683, filed on Jul. 2, 2020.
Claims priority of provisional application 63/121,705, filed on Dec. 4, 2020.
Claims priority of provisional application 62/870,364, filed on Jul. 3, 2019.
Prior Publication US 2022/0163918 A1, May 26, 2022
Int. Cl. G03H 1/04 (2006.01); G03H 1/00 (2006.01); G03H 1/06 (2006.01)
CPC G03H 1/0443 (2013.01) [G03H 1/0005 (2013.01); G03H 1/06 (2013.01); G03H 2001/005 (2013.01); G03H 2001/0452 (2013.01); G03H 2222/31 (2013.01)] 17 Claims
OG exemplary drawing
 
1. An imaging device configured to produce super-resolved images of an object, said device comprising:
a means for receiving electromagnetic radiation from an object;
a means for imposing a linear polarization on at least one portion of the received electromagnetic radiation;
a birefringent lens assembly for producing a pair of two individual co-propagating linearly orthogonally polarized beams from each of the at least one linearly polarized portions of the received electromagnetic radiation, each individual co-propagating linearly orthogonally polarized beam bearing information about the shape and location of the object, and each individual co-propagating linearly orthogonally polarized beam having a distinct phase curvature from the other individual beam of the pair;
a wideband quarter waveplate for converting each pair of linearly orthogonally polarized beams into a pair of circularly orthogonally polarized beams without requiring wavelength calibration or otherwise changing their phase curvatures;
one of a linear polarizer or an array of differentially aligned micropolarizers for causing mutual interference between each individual of each pair of the circularly orthogonally polarized beams with the other individual of said pair, with controlled relative constant phase factors differing between the individuals;
means for recording at least one image of each the interference patterns by at least one imaging device; and
a computational means for producing holograms and reconstructed images of the object from the recorded images of the interference patterns.