Abstract:
A system includes a Mach-Zehnder cirulator isolator. The Mach-Zehnder structure includes a substrate, a plurality of waveguides (128) disposed on the substrate, and a magneto-optic material (132) coupled to the plurality of waveguides. The Mach-Zehnder structure also includes one or more magnets configured to couple to the magneto-optic material and induce a magnetic field (see arrwos) in the magneto-optic material, wherein the Mach-Zehnder structure is configured to induce a non-reciprocal phase shift on light propagating in the plurality of waveguides. The system also includes one or more phase tuning elements (148) coupled to the Mach-Zehnder structure and configured to tune the phase shift.
Abstract:
In a method of making an elongated carbide nanostructure, a plurality of spatially-separated catalyst particles is applied to a substrate. The spatially-separated catalyst particles and at least a portion of the substrate are exposed to a metal-containing vapor at a preselected temperature and for a period sufficient to cause an inorganic nanostructure to form between the substrate and at least one of the catalyst particles. The inorganic nano-structure is exposed to a carbon-containing vapor source at a preselected temperature and for a period sufficient to carburize the inorganic nanostructure.
Abstract:
A system includes a Mach-Zehnder structure. The Mach-Zehnder structure includes a substrate, a plurality of waveguides disposed on the substrate, and a magneto-optic material coupled to the plurality of waveguides. The Mach-Zehnder structure also includes one or more magnets configured to couple to the magneto-optic material and induce a magnetic field in the magneto-optic material, wherein the Mach-Zehnder structure is configured to induce a non-reciprocal phase shift on light propagating in the plurality of waveguides. The system also includes one or more phase tuning elements coupled to the Mach-Zehnder structure and configured to tune the phase shift.
Abstract:
In a method of making an elongated carbide nanostructure, a plurality of spatially-separated catalyst particles is applied to a substrate. The spatially-separated catalyst particles and at least a portion of the substrate are exposed to a metal-containing vapor at a preselected temperature and for a period sufficient to cause an inorganic nanostructure to form between the substrate and at least one of the catalyst particles. The inorganic nano-structure is exposed to a carbon-containing vapor source at a preselected temperature and for a period sufficient to carburize the inorganic nanostructure.