We report optical dephasing of two-dimensional excitons in GaAs-AlGaAS single quantum wells by means of time-resolved Degenerate-Four-Wave Mixing and transmission experiments in the temperature ran
Microscopic photoluminescence images were measured on a dilute two-dimensional electron gas (2DEG) in an n-type modulation doped quantum well at 5K.
We show that undoped coupled quantum well structures of GaAs and InGaAs have a magnetoresistance effect which leads to a wavelength shift of the optical spectrum.
Clear evidence for resonant tunneling of electrons in a p-i- n quantum well modulator is provided by picosecond pump-and- probe electroabsorption measurements.
Summary form only given. We present a new class of tunable optical devices based on the incorporation of scattering material into air-holes of an air-silica microstructured fiber.
We have investigated the decomposition of P(CH sub 3)sub 3 in 13 MHz, radio frequency discharges of He and H sub 2.
Optical diagnostic techniques have greatly expanded our understanding of low pressure discharges used in etching and deposition processes for microelectronics devices.
Optical differential phase-shift keying (ODPSK) has emerged as a promising modulation format for state-of-the-art optical transport networks owing to its capability to enable optical transmissions
A simple optical pipelined processor has been demonstrated using four arrays of S-SEEDs, the photonic equivalent of an R-S flip flop. We are currently using a 6 by 8 array of devices.
We demonstrate a compact and simple silica-waveguide 10-Gb/s tunable optical dispersion compensator (ODC) that works with uncontrolled wavelength transmitters by tracking the signal wavelength.
