Theories of a technique for compression of an ultrashort femtosecond laser pulse beyond its Fourier-transform limit based on the pulse shaping technique are proposed. The technique is called superresolution in time domain (STD). Global optimization theories for the design of a mask to modulate the spectrum of an input pulse to obtain a STD output pulse are proposed. Several design examples illustrate the feasibility of STD. Some fundamental limits of STD are also provided.
© 2006 Optical Society of America
Original Manuscript: July 29, 2005
Manuscript Accepted: September 26, 2005
Haitao Liu, Guoguang Mu, Lie Lin, and Zhongwei Fan, "Pulse compression beyond the Fourier-transform limit," J. Opt. Soc. Am. A 23, 848-857 (2006)