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AssigneesMax-Planck-Gesellschaft zur Forderung der Wissenschaften e.V., University of Silesia
InventorsAnnette Bussmann-Holder, Jürgen Köhler, Gennady Logvenov, Arndt Simon, Krystian Roleder
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The invention relates to a magneto-optical light modulator (100) for modulating light based on a physical property provided as an input to the modulator (100), the modulator (100) comprising a substrate (114) with a region of material (130) comprising a film of Eu(1-x)Sr(x)MO3 (112), an optical waveguide (106; 108) adapted for directing light through the region of material (130) and a first control unit, the first control unit being adapted to—maintain the region of material (130) at a constant predefined temperature in case the physical property is an input magnetic field subject to the region of material (130) or—maintain the region of material (130) subjected to a constant predefined magnetic field in case the physical property is an input temperature of the region of material (130), the light modulator (100) being adapted to perform the modulation of the light using the birefringence of the region of material (130), the birefringence depending on the physical property.
A magneto-optical light modulator for modulating light based on a physical property provided as an input to the modulator, the modulator comprising a substrate with a region of material comprising a film of Eu(1-x)Sr(x)MO3, 0≤x<1, an optical waveguide adapted for directing light through the region of material and a first control unit, the M of the film of Eu(1-x)Sr(x)MO3 being a metal selected from Ti, Hf, Zr and Th, the first control unit being adapted to
A memory device for storing one or more binary data values, the memory device comprising one or more substrates with a plurality of regions of material, each region of material comprising a film of Eu(1-x)Sr(x)MO3, 0≤x<1, the M of the film of Eu(1-x)Sr(x)MO3 being a metal selected from Ti, Hf, Zr and Th, the regions being spatially separated from each other, the Eu(1-x)Sr(x)MO3 being single crystalline, the one or more binary data values being encoded in the regions using two different crystallographic orientations of the Eu(1-x)Sr(x)MO3 in the regions, the two crystallographic orientations being relative to the device.
A method for reading a memory device storing one or more binary data values, the memory device comprising a one or more substrates with a plurality of regions of material, each region of material comprising a film of Eu(1-x)Sr(x)MO3, 0≤x<1, the M of the film of Eu(1-x)Sr(x)MO3 being a metal selected from Ti, Hf, Zr and Th, the regions being spatially separated from each other, the Eu(1-x)Sr(x)MO3 being single crystalline, the one or more binary data values being encoded in the regions using two different crystallographic orientations of the Eu(1-x)Sr(x)MO3 in the regions, the two crystallographic orientations being relative to the device, a reader comprising a magnet generating a magnetic field at a readout zone of the reader, the magnetic field having a constant magnetic field strength and a constant field direction with respect to the device, the method comprising:
Dependencies are inferred from the claim text.