Publications

Laser studies on intramolecular hydrogen atom (H) transfer in organics have led to an important insight into the mechanism of ultrafast H transfer reactions.

We report measurements of luminescence spectra of InGaAsP with 10 psec time resolution and a wide dynamic range. The spectra are dominated by band-to-band recombination processes.

Wavelength shifts caused by chirp in pulses generated from a gain-switched InGaAsP distributed-feedback laser have been measured with 0.5 ps resolution.

We report ultrafast all-optical switching between two orthogonal linear polarizations in a periodically twisted, birefringent fiber filter.

Preliminary experiments utilizing thin polycrystalline OMVPE GaAs/Si sup O sub 2 films, has resulted in photoconductive detectors with sampling oscilloscope limited responses of 35 psec (FWHM), pho

We present a novel method of creating phonon excitations in a thin film of a chalcogenide glass.

An investigation of the dependence of the photoconductive lifetime and dark resistivity on ion mass, bombarding dose and substrate temperature is presented for ion implanted Fe-doped InP.

Measurements and theoretical calculations are presented for the photorefractive effect in three semi-insulating semiconductors (GaAs:EL2, InP:Fe and CdTe:V) using 29-ps pulses at a wavelength of 1.

We experimentally study the generation and amplification of stable picosecond-short optical pulses by a master oscillator power-amplifier configuration consisting of a monolithic quantum-dot-based

Here, we extend high peak power picosecond pulse generation to high repetition rates by employing two monolithic tapered QD structures.