We describe two-beam coupling and temporal encoding experiments in barium titanate.
Volume gratings are created in the photorefractive material by 50-fs optical pulses …

A basic assumption underlies many designs for chirped-pulse amplification (CPA) of
ultrashort pulses. This assumption is that a Taylor's series expansion of the dispersive delay …

We report on experimental demonstration of optical transient detection (OTD) based on
photorefractive two-wave mixing of femtosecond pulses. The demonstrated technique also …

We describe how optical beams from a mode-locked laser will couple in a photorefractive
crystal. We show that the two-beam-coupling gain coefficient is proportional to the square of …

We show that induced-grating/four-wave-mixing ultrashort-pulse autocorrelation techniques
that use slowly responding media offer the same phase information as interferometric …

Photorefractive AlGaAs-GaAs multiple-quantum-well structures perform as ultrafast field
autocorrelators during steady-state four-wave mixing by use of femtosecond pulses. The …

The diffraction of 100-fs pulses from the static gratings of photorefractive quantum wells
(QWs) produces diffracted pulses that are nearly transform-limited, despite the strong …

The induced grating autocorrelation technique, a technique based on temporally resolved
two-beam coupling in a photorefractive crystal, was used to measure the nonlinear …

We consider induced-grating autocorrelation (IGA) in a slowly responding medium and
study three possible geometries (two-beam coupling, three-beam induced grating, and self …

The cross-correlation function between two light fields is recorded with the help of a new
device. The proposed correlator exhibits ultrashort time resolution. The optical path …