G04F 5/14(20130101), H03L 7/26(20130101), G04F 5/145(20130101)
In one embodiment, an atomic clock for use in an electronic device includes a photodetector with a single-isotope silicon crystal doped with impurity atoms in which a photocurrent generated via a two-photon process within the photodetector is used as a frequency resonance of the atomic clock.
Karaiskaj, Denis, "Atomic clock using a photodetector" (2015). USF Patents. 33.
University of South Florida