Publications

Many network measurements (such as traffic counts or network delays) exhibit daily or weekly cyclical patterns.

Digital receivers for future high-rate high-bandwidth communication systems will require large sampling rate.

We measured zirconium tungstate's elastic constants C-ij. This compound shows relatively soft, nearly isotropic elastic constants with normal Poisson ratios and no approach to Born instability.

Exposure of evaporated gold films supported on silicon wafers to solutions of dialkyl sulfides or alkyl thiols in methanol or ethanol results in rapid formation of a monolayer of the organosulfur

The vertical position of Ga on Si(111) for coverages larger 1/3 ML has been quantitatively established using the X-ray standing wave technique.

Infrared-visible sum generation spectroscopy, a potentially valuable probe of molecular vibrations at interfaces, has been recently demonstrated on glass and water substrates.

We demonstrate active mode locking of a high-speed 8 mu m quantum cascade laser in a monolithic configuration, at a repetition rate of 11.6 GHz.

We present a polarization diversity coherent receiver by employing 120-degree optical hybrids on a monolithic silicon photonic integrated circuit.

We demonstrate a novel device that demodulates both quadratures of the optical differential quadrature phase shift keying (DQPSK) format in a single interferometer by using a 2-by-4 star coupler.

We present a monolithic differential quadrature phase-shift keying (DQPSK) receiver in InP consisting of a 1 × 2 coupler, two different-length waveguides, a 2 × 4 coupler, and four photodetectors.