Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Search Publications by: Tara Fortier (Fed)

Displaying 176 - 178 of 178

Femtosecond laser frequency combs: optical synthesizers for precision spectroscopy and frequency metrology

June 12, 2005

Author(s)

Scott A. Diddams, A Bartels, Tara M. Fortier, Eugene N. Ivanov, Kyoungsik Kim, John J. McFerran, Windell Oskay, G Wilpers, Christopher W. Oates, James C. Bergquist, Leo W. Hollberg, Vladislav Gerginov, C E. Tanner

A femtosecond laser frequency comb (FLFC) is the broadband (octave-spanning) evenly-spaced array of optical frequencies that is present in the output of a femtosecond mode-locked laser. Such frequency combs immediately found wide-spread use in optical

The Measurement of Optical Frequencies

June 7, 2005

Author(s)

Leo W. Hollberg, Scott A. Diddams, A Bartels, Tara M. Fortier, Kyoungsik Kim

Even the suggestion of counting optical frequencies in the visible (~ 500 THz) must have seemed ludicrous to many in the past, because traditional methods failed to work above about 100 GHz. Nonetheless, with some vision and new ideas a few researchers had