31results about "Handling using polarising devices" patented technology

An apparatus includes an optical waveguide and an optical filter positioned to receive light from the optical waveguide. The optical waveguide includes a sequence of alternating first and second stripes. The sequence runs along a propagation direction in the optical waveguide. The first and second stripes are formed of different polarization states of a group III-nitride semiconductor. The optical filter removes light of a preselected frequency.

One or more embodiments relate generally to the field of photoelectron spin and, more specifically, to a method and system for creating a controllable spin-polarized electron source. One preferred embodiment of the invention generally comprises: method for creating a controllable spin-polarized electron source comprising the following steps: providing one or more materials, the one or more materials having at least one surface and a material layer adjacent to said surface, wherein said surface comprises highly spin-polarized surface electrons, wherein the direction and spin of the surface electrons are locked together; providing at least one incident light capable of stimulating photoemission of said surface electrons; wherein the photon polarization of said incident light is tunable; and inducing photoemission of the surface electron states.

A reflection surface 12 constituted by a transition metal having a core level absorption edge in the vicinity of a wavelength of a soft X-ray is formed on an inside of a vacuum vessel 14, and furthermore, there is provided a permanent magnet 13 for generating a magnetic field in a perpendicular direction to a longitudinal direction of the vacuum vessel 14 in a position of the reflection surface 12 by which the soft X-ray is to be reflected, and the soft X-ray to be linearly polarized light incident on the vacuum vessel 14 is reflected at plural times over the reflection surface 12 in a position where the magnetic field is applied in such a manner that magnetic scattering is increased by a resonant effect of a magnetic circular dichroism when the soft X-ray is reflected by the reflection surface 12. Thus, a great difference in a refractive index is made between circularly polarized counterclockwise light and circularly polarized clockwise light which constitute the linearly polarized light, and a phase difference between the circularly polarized counterclockwise light and the circularly polarized clockwise light is obtained at a time. Consequently, it is possible to reversibly convert the soft X-ray from the linearly polarized light into the circularly polarized light or from the circularly polarized light into the linearly polarized light by a reflection to be carried out at only several times.

A polarizing apparatus has a thermally conductive partitioning system in a polarizing cell. In the polarizing region, this thermally conductive partitioning system serves to prevent the elevation of the temperature of the polarizing cell where laser light is maximally absorbed to perform the polarizing process. By employing this partitioning system, increases in laser power of factors of ten or more can be beneficially utilized to polarize xenon. Accordingly, the polarizing apparatus and the method of polarizing 129Xe achieves higher rates of production.

A polarized neutron guide for separating neutrons into polarized neutrons while minimizing loss of the neutrons is provided. The polarized neutron guide includes a body, the first space and the second space, and a neutron separation space. The body includes super mirrors coated with a neutron-reflective thin film and the first and second spaces are formed by the first plate inside the body. The neutron separation space is formed by the second plate disposed at the entry of the first space and the third plate disposed at the entry of the second space. Spin-up polarized neutrons and spin-down polarized neutrons are simultaneously separated and transferred in the first and second spaces, respectively. Therefore, with minimum loss of the neutrons, the spin-up polarized neutrons and the spin-down polarized neutrons are effectively separated and collected.

A spin-polarized electron generating device includes a substrate, a buffer layer, a strained superlattice layer formed on the buffer layer, and an intermediate layer formed of a crystal having a lattice constant greater than a lattice constant of a crystal of the buffer layer, the intermediate layer intervening between the substrate and the buffer layer. The buffer layer includes cracks formed in a direction perpendicular to the substrate by tensile strain.

The present invention relates to a method creating highly concentrated quantum entangled particles which can be embedded into substrates such that the particles, and therefore substrates they are embedded upon are remotely controllable. The invention includes streaming a beam of particles through a beam splitter and then applying a selected correlation system, such as NMR or supercooling, to the particles in order to align the particle spins. The particles are then released from the correlation system resulting in an unnaturally high saturation of concentrated quantum entangled particles on a macro scale. The particles and substrates are then in a salve-x relationship configuration and are therefore remotely controllable. Through stimulation and detection, changes in state may be observable in order to determine the level of concentration and remote control.