Skip to Content
Find More Like This
Return to Search

Microfabricated ion frequency standard

United States Patent

December 28, 2010
View the Complete Patent at the US Patent & Trademark Office
Sandia National Laboratories - Visit the Intellectual Property Management and Licensing Website
A microfabricated ion frequency standard (i.e. an ion clock) is disclosed with a permanently-sealed vacuum package containing a source of ytterbium (Yb) ions and an octupole ion trap. The source of Yb ions is a micro-hotplate which generates Yb atoms which are then ionized by a ultraviolet light-emitting diode or a field-emission electron source. The octupole ion trap, which confines the Yb ions, is formed from suspended electrodes on a number of stacked-up substrates. A microwave source excites a ground-state transition frequency of the Yb ions, with a frequency-doubled vertical-external-cavity laser (VECSEL) then exciting the Yb ions up to an excited state to produce fluorescent light which is used to tune the microwave source to the ground-state transition frequency, with the microwave source providing a precise frequency output for the ion clock.
Schwindt; Peter (Albuquerque, NM), Biedermann; Grant (Albuquerque, NM), Blain; Matthew G. (Albuquerque, NM), Stick; Daniel L. (Albuquerque, NM), Serkland; Darwin K. (Albuquerque, NM), Olsson, III; Roy H. (Albuquerque, NM)
Sandia Corporation (Albuquerque, NM)
12/ 431,564
April 28, 2009
GOVERNMENT RIGHTS This invention was made with Government support under Contract No. DE-AC04-94AL85000 awarded by the U.S. Department of Energy. The Government has certain rights in the invention.