Spectrally resolved wedged reversal shearing interferometer
Abstract
In this Letter, we introduce a technique to fully determine the spatio-temporal electric field E ( x , y , t ) of an arbitrary ultrashort pulse. By passing the beam through a wedged reversal shearing interferometer followed by a scanning Michelson interferometer, the field autocorrelation of the shearing interferograms is measured. The spectrum of the shearing interferograms is obtained after a Fourier transform by the Whittaker–Shannon sampling theorem, yielding the amplitude and wavefront information at every wavelength. With the addition of the phase information of a single point, we are able to directly reconstruct the spatio-temporal electric field E ( x , y , t ) of an arbitrary ultrashort pulse.
Document Details
- Document Type
- Pub Defense Publication
- Publication Date
- Apr 06, 2021
- Source ID
- 10.1364/ol.417997
Entities
People
- Billy Lam
- Chunlei Guo
Organizations
- Army Research Office
- National Science Foundation
- University of Rochester