Patents by Inventor Daniel Kleppner

Daniel Kleppner has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Detecting IR and mm radiation
    Patent number: 4293769
    Abstract: An atomic beam is excited by laser radiation to a state with large principal quantum number. The beam is irradiated with infrared or millimeter wave radiation which is to be detected. The atoms absorb the radiation by making transitions to higher-lying states. The transitions are sensed by applying an electric field which ionizes atoms in the final state, but not the initial state. The ions ae collected and detected by conventional pulse-counting or direct current methods.
    Type: Grant
    Filed: November 16, 1979
    Date of Patent: October 6, 1981
    Assignee: Massachusetts Institute of Technology
    Inventor: Daniel Kleppner