US Patent Application 18222418. SIMULTANEOUS PHASE AND POLARIZATION MODULATION BY HYBRID METASURFACE FOR ON-CHIP POLARIZATION FILTERS simplified abstract
SIMULTANEOUS PHASE AND POLARIZATION MODULATION BY HYBRID METASURFACE FOR ON-CHIP POLARIZATION FILTERS
Organization Name
Inventor(s)
Radwanul Hasan Siddique of Pasadena CA (US)
MohammadSadegh Faraji-dana of Pasadena CA (US)
SIMULTANEOUS PHASE AND POLARIZATION MODULATION BY HYBRID METASURFACE FOR ON-CHIP POLARIZATION FILTERS - A simplified explanation of the abstract
This abstract first appeared for US patent application 18222418 titled 'SIMULTANEOUS PHASE AND POLARIZATION MODULATION BY HYBRID METASURFACE FOR ON-CHIP POLARIZATION FILTERS
Simplified Explanation
- The patent application describes a filter for an imaging device that includes an array of phase-modulating nanostructures formed on a substrate. - The nanostructures are capable of changing the phase of incident light by a predetermined amount based on their width. - The filter can be used to focus light towards the center of a pixel on an image sensor, improving image quality. - The phase-modulating nanostructures are made from a material with a refractive index greater than 1.9. - The filter can also be used to create a quarter-wave plate, which is a device used to manipulate the polarization of light.
Original Abstract Submitted
A filter for an imaging device includes an array of phase-modulating nanostructures formed on a substrate. At least one phase-modulating nanostructure of the array of phase-modulating nanostructures changes a phase of incident light a predetermined amount based on a first width and a second width of the phase-modulating nanostructure in which the first width is perpendicular to the second width. In one embodiment, the filter focuses light incident on the filter towards a center a pixel of an image sensor at an image plane. In another embodiment, the phase-modulating nanostructure is formed from a material having a refractive index that is greater than 1.9. The filter can also be used to form a quarter-wave plate.
