PaperAveraged Lagrangian method applied to resonant nonlinear optics. The self-steepening of light pulsesJ.A. ArmstrongPhysical Review A
PaperObservation of self-steepening of optical pulses with possible shock formationD. Grischkowsky, Eric Courtens, et al.Physical Review Letters
PaperObservation of an optical difference frequencyArchibald W. Smith, Norman BraslauJournal of Applied Physics
