Dielectric-induced surface wave radiation loss

Omnidirectional surface wave cloak using an isotropic homogeneous dielectric coating

The field of transformation optics owes a lot of its fame to the concept of cloaking. While some experimental progress has been made towards free-space cloaking in three dimensions, the material properties required are inherently extremely difficult to achieve. The approximations that then have to be made to allow fabrication produce unsatisfactory device performance. In contrast, when surface ...

Surface participation and dielectric loss in superconducting qubits

Effect of surface preparation on the radiation hardness of high-dielectric constant gate dielectric

Effect of surface preparation on the radiation hardness of MOS devices with high dielectric constant gate dielectric of HfO2 and metal gate of TiN is studied using extreme ultra-violet (EUV) light as the radiation source. Three kinds of surface treatment including HF-last, chemical-oxidation, and rapid-thermal-oxidation were evaluated. Among them, chemical-oxidation exhibits the best radiation ...

Wave-induced loss of ultra-relativistic electrons in the Van Allen radiation belts

The dipole configuration of the Earth's magnetic field allows for the trapping of highly energetic particles, which form the radiation belts. Although significant advances have been made in understanding the acceleration mechanisms in the radiation belts, the loss processes remain poorly understood. Unique observations on 17 January 2013 provide detailed information throughout the belts on the ...

Electromagnetic radiation induced by a gravitational wave