Patent · US Active

Metasurface imager for quantitative phase gradient detection

US11385450B2 · kind B2 · utility

6Cited by

1References

20Claims

0Family size

Assignee

CALIFORNIA INSTITUTE OF TECHNOLOGY · US

Inventors

Hyounghan KWON · Pasadena, US
Ehsan Arbabi · Arcadia, US
Andrei Faraon · La Cañada Flintridge, US

Key dates

Filing date	Apr 30, 2020
Grant date	Jul 12, 2022
Priority date	—
Expiry date	Jan 19, 2041

Classification

Technology area (CPC G)Physics
CPC primaryG01J2009/0269
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

Quantitative phase gradient microscopes (QPGM) using metasurface layers including birefringent lenses are disclosed. The birefringent lenses are manufactured by patterning nanoposts on two different transparent substrates or on opposite sides of the same transparent substrate. Methods to generate phase gradient images (PGI) of objects using the described devices are also disclosed.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.