Gerald F. Dionne

TL;DR: In this article, a non-reciprocal optical resonator with a small length footprint of 290 µm on a silicon-on-insulator substrate is presented, achieving unidirectional optical transmission with an isolation ratio of up to 19.5 dB near the telecommunications wavelength of 1,550 nm in a homogeneous external magnetic field.

TL;DR: In this article, the development and current status of microwave ferrite technology is reviewed and an introduction to the physics and fundamentals of key ferrite devices is provided, followed by a historical account of the development of ferrimagnetic spinel and garnet (YIG) materials.

TL;DR: In this article, an analysis of the one-dimensional constant-loss theory of secondary electron emission, maximum yield, primary electron energy at maximum yield (Eom), and both crossover energies EIoc and EIIoc are shown to depend on the surface and bulk properties of the emitting material through simple relations.

TL;DR: In this article, the development of microwave S - and C -band lithium ferrites with substantially improved properties, comparable to those of the more expensive ferrimagnetic garnets currently in use, were reported.

TL;DR: In this paper, the synthesis and characterization of room temperature ferromagnetic semiconductor (In1−xFex)2O3−σ are reported, and the high thermodynamic solubility, up to 20%, of Fe ions, is demonstrated by a combinatorial phase mapping study where the lattice constant decreases almost linearly as Fe doping concentration increases.