The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 17, 2023
Filed:
Sep. 20, 2019
Humboldt-universitaet Zu Berlin, Berlin, DE;
University of Copenhagen, Copenhagen K, DK;
Philipp Schneeweiss, Berlin, DE;
Juergen Volz, Berlin, DE;
Arno Rauschenbeutel, Berlin, DE;
Sahand Mahmoodian, Hannover, DE;
Anders Søndberg Sørensen, Copenhagen, DK;
Humboldt-Universitaet zu Berlin, Berlin, DE;
University of Copenhagen, Copenhagen K, DK;
Abstract
A device for generating individual photons with energy E includes quantum emitters, having at least one determined transition with the energy E from an energy level N* to a lower energy level N. The emitters are near a propagation path running from first to second regions. The device also includes at least one light source to output light, for propagation along the path. The light has the energy E for resonant excitation of the energy level N*. The emitters are arranged so that optionally exactly Z emitters are illuminated, forming an optical thickness τ>0 for the light along the path. The number Z lies in a range of Z±10% and Zis a number at which a maximum destructive interference in the second region occurs between a two-photon component of the light scattered on the ZO emitters and a two-photon component of the non-scattered light.