Publications

The dielectric loss in microstrip or suspended microstrip transmission lines is an important parameter in the design of hybrid integrated circuits which require small attenuation.

We derive a homogenization expansion approach to obtaining the leaky modes, or scattering resonances, of photonic waveguides whose transverse structures are N-fold rotationally symmetric.

We develop a homogenization expansion approach to photonic waveguides, whose transverse structures are N-fold rotationally symmetric.

Original planar bandstop filters based on resonant coupling irises have been micromachined on silicon membranes.

The resonant coupling of the gamma(5)+ phonon to the gamma (7)-gamma(8) CEF excitations in CeA1(2) is probed by Raman scattering via the simultaneous observation of the renormalized (gamma(6)+) pho

Strong resonant enhancements of inelastic light scattering from the long wavelength inter-Landau level magnetoplasmon and the intra-Landau level spin wave excitations are seen for the fractional qu

Sequential resonant tunneling is proposed to enhance the photocurrent and reduce recombination losses in photovoltaic devices based on multiple quantum well heterostructures.

Rapid development of optical fiber amplifiers, and more especially of the erbium-doped fiber amplifiers (EDFA) during the last decade, has benefited from extensive work on the configuration of the

Resonant behavior in the frequency dependent responsivity of a high electron mobility transistor based plasma wave detector from 0.1 to 6 GHz is clearly demonstrated at T=0.3 to 4 K.

The tunneling of carriers in semiconductor heterostructures has recently gained much interest due to its importance as a basic physical phenomenon and its promising device applications.