Timothy A. Birks

Femtosecond optical clock

Valentin I. Beloglazov, William J. Wadsworth, V. S. Pivtsov, 2002, International Conference on Coherent and Nonlinear Optics.

Femtosecond optical clock with the use of a frequency comb

William J. Wadsworth, V. S. Pivtsov, Sergei N. Bagayev, 2002, Other Conferences.