US 11,630,000 B2 · High speed and spectrally selective pyroelectric detectors with plasmonic structures and methods of making and using same

Abstract

High speed and spectrally selective pyroelectric detectors with plasmonic structure and methods of making and using same are disclosed. According to an aspect, a pyroelectric detector includes an artificial optical absorber or plasmonic absorber comprising an ensemble of subwavelength conductive components forming a plasmonic structure configured to receive light and to generate thermal energy from the received light. Further, the pyroelectric detector includes a pyroelectric material configured to receive the generated thermal energy from the plasmonic structure and to generate an electrical signal representative of the received thermal energy. Further, the pyroelectric detector includes an electronic component configured to receive the electrical signal from the pyroelectric material for detection of the received light.

Claims20

Dependent claims

A pyroelectric detector comprising:

a plurality of pixels being spaced apart for receiving different portions of light, wherein each pixel comprises:
an artificial optical absorber or plasmonic absorber comprising an ensemble of subwavelength conductive components that are substantially cuboid in shape for forming a plasmonic structure, wherein the subwavelength conductive components generate thermal energy only in response to receipt of light having a predetermined wavelength range;
and
a pyroelectric material positioned to receive the generated thermal energy, and wherein the pyroelectric material generates an electrical signal representative of the received thermal energy;
and
an electronic component configured to receive the electrical signal from the pyroelectric material of each pixel for detection of the received light.

3 more elements

Dependencies are inferred from the claim text.

High speed and spectrally selective pyroelectric detectors with plasmonic structures and methods of making and using same

Life of this patent

High speed and spectrally selective pyroelectric detectors with plasmonic structures and methods of making and using same

Life of this patent

Abstract

Claims20