A photoelectric conversion device configured to emit an electron according to an electron field emission, the photoelectric conversion device comprising: an electron emitter including a meta-surface emitting the electron in response to incidence of an electromagnetic wave, wherein the meta-surface includes a plurality of photoelectric conversion units (23, 24, 25) having a sensitivity for electromagnetic waves having mutually different wavelength regions, the plurality of photoelectric conversion units (23, 24, 25) respectively include patterns (33, 34, 35) having mutually different configurations, the pattern of each of the photoelectric conversion units (23, 24, 25) includes first and second sections (37, 38) 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, the photoelectric conversion device further comprising a potential control unit configured to control electric potentials applied to the first and second sections (37, 38) in each of the photoelectric conversion units, wherein the plurality of photoelectric conversion units include a first photoelectric conversion unit and a second photoelectric conversion unit, the potential control unit is configured to control electric potentials applied to the first and second sections (37, 38) of the first photoelectric conversion unit and the first and second sections (37, 38) of the second photoelectric conversion unit, an electric potential difference between an electric potential applied to the first section of the first photoelectric conversion unit and an electric potential applied to the second section of the first photoelectric conversion unit, and an electric potential difference between an electric potential applied to the first section of the second photoelectric conversion unit and an electric potential applied to the second section of the second photoelectric conversion unit are different from each other, and the potential control unit is configured to apply a higher electric potential than the electric potential applied to the first section of the first photoelectric conversion unit to the second section of the first photoelectric conversion unit in a case of applying a lower electric potential than the electric potential applied to the first section of the second photoelectric conversion unit to the second section of the second photoelectric conversion unit. an electron emitter including a meta-surface emitting the electron in response to incidence of an electromagnetic wave, wherein the meta-surface includes a plurality of photoelectric conversion units (23, 24, 25) having a sensitivity for electromagnetic waves having mutually different wavelength regions, the plurality of photoelectric conversion units (23, 24, 25) respectively include patterns (33, 34, 35) having mutually different configurations, the pattern of each of the photoelectric conversion units (23, 24, 25) includes first and second sections (37, 38) 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, the photoelectric conversion device further comprising a potential control unit configured to control electric potentials applied to the first and second sections (37, 38) in each of the photoelectric conversion units, wherein the plurality of photoelectric conversion units include a first photoelectric conversion unit and a second photoelectric conversion unit, the potential control unit is configured to control electric potentials applied to the first and second sections (37, 38) of the first photoelectric conversion unit and the first and second sections (37, 38) of the second photoelectric conversion unit, an electric potential difference between an electric potential applied to the first section of the first photoelectric conversion unit and an electric potential applied to the second section of the first photoelectric conversion unit, and an electric potential difference between an electric potential applied to the first section of the second photoelectric conversion unit and an electric potential applied to the second section of the second photoelectric conversion unit are different from each other, and the potential control unit is configured to apply a higher electric potential than the electric potential applied to the first section of the first photoelectric conversion unit to the second section of the first photoelectric conversion unit in a case of applying a lower electric potential than the electric potential applied to the first section of the second photoelectric conversion unit to the second section of the second photoelectric conversion unit.