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US 12,706,288 B2Granted
Photoelectric conversion device and photoelectric conversion method
AssigneeHamamatsu Photonics K.K.
InventorsNaoya Kawai, Hideaki Yoshiara, Simon Lehnskov Lange, Peter Uhd Jepsen
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Abstract
A photoelectric conversion device is provided with an electron emitter including a meta-surface emitting an electron in response to incidence of an electromagnetic wave. The meta-surface includes a plurality of photoelectric conversion units having a sensitivity for electromagnetic waves having mutually different wavelength regions. The plurality of photoelectric conversion units respectively include patterns having mutually different configurations.
Claims17
A photoelectric conversion device comprising:
- an electron emitter including a meta-surface emitting an electron in response to incidence of an electromagnetic wave, wherein
- the meta-surface includes a plurality of photoelectric conversion units having a sensitivity for electromagnetic waves having mutually different wavelength regions,
- the plurality of photoelectric conversion units respectively include patterns having mutually different configurations,
- the pattern of each of the photoelectric conversion units includes first and second sections being spaced away from each other, and
- the second section includes a leading end facing the first section, and is configured to emit the electron in response to incidence of the electromagnetic wave when a lower electric potential than an electric potential of the first section is applied to the second section.
2 more elements
A photoelectric conversion method comprising:
- making an electromagnetic wave to be measured enter a meta-surface including a plurality of photoelectric conversion units, the plurality of photoelectric conversion units respectively including patterns having mutually different configurations;
- emitting an electron from at least one photoelectric conversion unit corresponding to a wavelength region of the electromagnetic wave to be measured among the plurality of photoelectric conversion units;
- and
- controlling electric potentials applied to the plurality of photoelectric conversion units, wherein
- the pattern of each of the photoelectric conversion units includes a first section and a second section spaced away from the first section and has a leading end facing the first section,
- each of the photoelectric conversion units emits the electron in response to incidence of the electromagnetic wave in a state where a lower electric potential than an electric potential applied to the first section is applied to the second section, and
- electric potentials applied to the first and second sections of each of the photoelectric conversion units are controlled.
4 more elements
Dependencies are inferred from the claim text.