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Generation of a frequency comb and applications thereof

United States Patent

December 3, 2013
View the Complete Patent at the US Patent & Trademark Office
Los Alamos National Laboratory - Visit the Technology Transfer Division Website
Apparatus for generating a microwave frequency comb (MFC) in the DC tunneling current of a scanning tunneling microscope (STM) by fast optical rectification, caused by nonlinearity of the DC current vs. voltage curve for the tunneling junction, of regularly-spaced, short pulses of optical radiation from a focused mode-locked, ultrafast laser, directed onto the tunneling junction, is described. Application of the MFC to high resolution dopant profiling in semiconductors is simulated. Application of the MFC to other measurements is described.
Hagmann; Mark J. (West Valley, UT), Yarotski; Dmitry A. (Los Alamos, NM)
Los Alamos National Security, LLC (Los Alamos, NM)
13/ 625,780
September 24, 2012
STATEMENT REGARDING FEDERAL RIGHTS This invention was made with government support under Contract No. DE-AC52-06NA25396 awarded by the U.S. Department of Energy. The government has certain rights in the invention.