title: A photon position sensor consisting of single-electron circuits.
abstract: This paper proposes a solid-state sensor that can detect the position of incident photons with a high spatial resolution. The sensor consists of a two-dimensional array of single-electron oscillators, each coupled to its neighbors through coupling capacitors. An incident photon triggers an excitatory circular wave of electron tunneling in the oscillator array. The wave propagates in all directions to reach the periphery of the array. By measuring the arrival time of the wave at the periphery, we can know the position of the incident photon. The tunneling wave's generation, propagation, arrival at the array periphery, and the determination of incident photon positions are demonstrated with the results of Monte Carlo based computer simulations.
authors.affiliation: Department of Electrical Engineering, Hokkaido University, Sapporo 060-8628, Japan. kikombo@sapiens-ei.eng.hokudai.ac.jp
authors.forename: Andrew Kilinga
authors.initials: AK
authors.lastname: Kikombo
authors.forename: Michiharu
authors.initials: M
authors.lastname: Tabe
authors.forename: Yoshihito
authors.initials: Y
authors.lastname: Amemiya
mesh_terms: D004867:Equipment Design; D036103:Nanotechnology / Q000379:methods*; D017785:Photons