Conventional optics in the radio frequency (rf) through far-infrared (FIR) regime cannot
resolve microscopic features since resolution in the far field is limited by wavelength. With the …

Microwave imaging via space-time (MIST) beamforming has been proposed recently for
detecting small malignant breast tumors. In this paper, we extend the previously presented two-…

Metamaterials, exhibiting simultaneously negative permittivity ε and permeability μ, more
commonly referred to as left-handed metamaterials (LHMs) and also known as negative-index …

We demonstrate real-time recording of chemical vapor fluc-tuations from 22m away with a
fast Fourier-transform infrared (FTIR) spectrometer that uses a laser-like infrared probing …

Microfabricated folded waveguide traveling-wave tubes (TWTs) are potential compact
sources of wide-band, high-power terahertz radiation. We present feasibility studies of an …

… DW van der Weide. We are looking directly at membranes and membrane proteins, and
believe there is considerable potential. Obviously, NMR is a more advanced technique, with a …

Silicon has many attractive properties for quantum computing, and the quantum-dot architecture
is appealing because of its controllability and scalability. However, the multiple valleys …

Spins based in silicon provide one of the most promising architectures for quantum computing.
A scalable design for silicon-germanium quantum-dot qubits is presented. The design …

… 3-D shape measurement technique by integrating our recently proposed flexible 3-D shape
… We have successfully reached an unprecedented 667 Hz 3-D shape measurement speed, …

We introduce a branch-line coupler using discontinuous microstrip lines whose size is
significantly reduced relative to the standard design. We manipulate the reactive characteristics of …