Abstract:
A solar energy conversion system is presented. The system comprises at least one waveguide arrangement having at least one light input respectively. The waveguide arrangement comprises a core unit for passing input solar radiation therethrough and a cladding material arrangement interfacing with the core therealong. The cladding material arrangement is configured as an array of spaced-apart solar cells arranged along the core unit and having different optical absorption ranges, such that an interface between the waveguide core and the cladding arrangement spectrally splits the photons of the input solar radiation by causing the photons of different wavelengths, while passing through the core unit, to be successively absorbed and thereby converted into electricity by the successive solar cells of said array.
Abstract:
A method and system are presented for producing an output coherent anti-stokes Raman scattering (CARS) signal of a medium. The method comprises generation of a unitary optical excitation pulse that carries a pump photon, a Stokes photon and a probe photon; and inducing a CARS process in the medium by exciting the medium by the at least one such unitary optical excitation pulse.
Abstract:
The present invention relates to a method and apparatus for patterning a substrate. The method comprises providing at least one magnetic pattern generator configured and operable to modulate the magnetic field to induce varying magnetic properties to a magnetic field according to a desired pattern; applying the modulated magnetic field in the vicinity of the substrate creating a certain pattern of regions of interaction to be obtained on top of the substrate; and; interacting the substrate with magnetic particles, while under the application of the modulated magnetic field, the magnetic particles being attracted to selected regions of interaction defined by the certain pattern while being substantially not attracted to regions outside the regions of interaction, thus creating on top of the substrate the certain pattern of regions interacted with the magnetic particles. The desired pattern corresponds to a certain pattern for a predetermined magnetic field profile and at a predetermined distance from the magnetic pattern generator, where the sample is to be located.
Abstract:
The invention provides a method for identifying one or more loci in a genome of an organism involved in overdominance of a phenotypic trait. a plurality of crosses are performed between pairs of founder organisms. An overdominance heterosis parameter (ODH) is calculated indicative of a deviation of the phenotypic value of the parents and the progeny. The progeny are divided based on their genotype at the locus into a homo-haplo-group (HoHG) consisting of progeny carrying two identical haplotype segments at the locus, and a hetero-haplo-group (HeHG) consisting of progeny carrying two different haplotype segments. Heterosis trait loci are identified showing a significant differencein the overdominance heterosis parameter ODH values between the HoHG group and the HeHG group.
Abstract:
A method is presented for use in fabrication of metal islands on an oxide substrate. The method comprises: depositing a selected metal on the oxide substrate by evaporation of said selected metal; and annealing a film of the selected metal on said substrate at temperatures including an annealing temperature being less than 50°C lower than a glass transition temperature, thereby forming the metal islands partially embedded in said substrate.
Abstract:
The present invention discloses a novel magnetic sensor device performing direct magnetic field imaging, comprising a probe having a conical tip portion which is configured as a sensor having two superconductors separated by a thin non-superconducting layer (such as a Josephson junction based sensor), where the non-superconducting layer is located at the apex portion of said conical tip, thereby defining electron tunneling region(s) at said apex portion. The technique of the present invention enables the sensor device to be very small and to be brought very close to the sample surface.
Abstract:
A kit, apparatus and method are presented for use in measuring an optical property of a sample. The kit comprises at least one reference unit, having a reference surface of a directional emissivity of a certain value; and main and auxiliary chambers, each defining an optical window allowing passage of electromagnetic radiation therethrough. The main chamber is configured to define a region thereof for accommodating the reference unit and the sample, and is configured to screen this region from external radiation.
Abstract:
A device is presented comprising a multi-layer structure with a plurality of metal islands on the surface of a solid transparent substrate. The islands are coated by an ultrathin sol-gel derived silica film via self-assembled monolayer.
Abstract:
A film is presented having super-pyroelectric properties. The film comprises nano-sized grains being in a ferroelectric phase and having at least three different crystallographic variants defining at least two polycrystalline macro-domains. The film is shaped to define at least one film region with the macro-domains of a predetermined shape and different orientations of crystallographic axes with respect to the film's surface, thereby enabling to apply a temperature change to the film to induce movement of the polycrystalline macro-domains boundaries enabling super-pyroelectric properties.
Abstract:
The present invention provides an article, at least part of it being coated by inorganic fullerene-like (IF) nanoparticles or composite containing such nanoparticles. Preferably, the invention provides an article made of metal, for use in dentistry or medicine e.g. archwire, needle or catheter, having a friction-reducing film, and methods for coating such articles with a friction-reducing film.