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PHOTONIC CRYSTAL PRESSURE SENSORTech for Transfer TTO 18-12-2015 The present invention provides a microscale pressure sensor that exhibits high sensitivity in a small form factor. The sensor is a bridged device in which a photonic crystal waveguide, surrounded by a photonic crystal slab, is suspended over a dielectric substrate. Under applied pressure, the photonic crystal waveguide is deflected toward the substrate, causing a decrease in optical transmission across the waveguide due to the coupling of the evanescent field of the guided mode to the dielectric substrate. The waveguide can be coupled to a photonic crystal microcavity, which increases evanescent coupling. This inventive design enables a higher sensitivity and better tolerance to manufacturing imperfections. Photonic Crystals Waveguides Tell me more |
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PHOTONIC CRYSTAL SPECTROMETERTech for Transfer TTO 18-12-2015 This invention presents a new and disruptive technology for spectroscopic analysis involving an optical waveguide coupled to a photonic crystal. The use of photonic crystals to spatially resolve incoming optical energy, such as according to wavelength, can drastically reduce the complexity, production cost, or size of optical spectrometers, and can be applicable to any or all wavelengths detectable by a coupled optical detector. The photonic crystal spectrometer can be both small and inexpensive. This can allow entrance into many niche markets that otherwise might not exist. One particular such application can include color feedback and auto-tuning for printers. Spectroscopy Photonic Crystals Tell me more |
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BISTABLE PHOTONIC CRYSTAL WITHOUT EXTERNAL POWER CONSUMPTIONTech for Transfer TTO 18-12-2015 The present invention provides the way to create a photonic crystal with fast response time and wide tunable range of wavelength, and meanwhile, remain at a stable state without external power consumption. The photonic crystal has a plurality of voids and each surface of void has an hydrophobic film. When the photonic crystal is immersed in a predetermined liquid, the crystal has two stable states. The first stable state is to fill the plurality of voids with the predetermined liquid, and the second stable state is to exclude the liquid from the plurality of voids. Owing to the energy barrier between the first and second stable states, the photonic crystal can remain at either of the two states without external power consumption. Photonic Crystals Tell me more |
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NEW PHOTONIC CRYSTAL-METALLIC STRUCTURE FOR HIGH RESOLUTION IMAGINGTech for Transfer TTO 21-12-2015 A novel photonic crystal-metallic structure, where the structures are in a total-internal-reflection geometry with applications in high resolution imaging and highly-sensitive biomolecular sensors. Glass & other optical materials Plasmonics Photonic Crystals Tell me more |
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UP-CONVERSION OF IR FEMTOSECOND PULSES USING PHOTONIC CRYSTAL FIBERSTech for Transfer TTO 16-01-2016 Optical frequency up-conversion of infrared femtosecond laser pulses into visible pulses by Cherenkov radiation and intermodal four-wave mixing in photonic crystal fibers. Fiber Optics Lasers Non-Linear Optics Photonic Crystals Tell me more |
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HIGH BANDWIDTH GRAPHENE PHOTODETECTORTech for Transfer TTO 16-01-2016 This technology involves a device for coupling light into graphene using a planar photonic crystal with a resonant cavity and evanescent coupling. This resolves the problem of low optical absorption and responsitivity of graphene making it suitable for working as a photodetector. The optical properties of the graphene layer can then be controlled by electric currents. The advantages of graphene-based devices, such as high bandwidth detection abilities and ultrafast carrier dynamics are maintained. Photonic Crystals Photodetection Thin-Film Materials Tell me more |
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ULTRAHIGH BITRATE OPTICAL PULSES ON PHOTONIC CHIPSTech for Transfer TTO 17-01-2016 With the advent of ever faster telecommunication data rates, it is important to achieve clock speeds faster than 1 THz not limited by the optical pulse width, and to do so in a scalable approach. Soliton-effect pulse compression can offer a route to realize femtosecond pulses at multi-GHz repetition rates, in an integrated photonic chip. This invention provides an apparatus capable of generating optical pulses using photonic crystal waveguides on integrated circuits for optical communication applications at ultrahigh bitrates. Photonic Crystals Optical Communications Tell me more |
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NANOIMPRINTING PROCESS FOR SILK PHOTONIC CRYSTALSTech for Transfer TTO 18-01-2016 Processing of a biopolymer into photonic structures using nanocontact imprinting for the realization of entirely organic biophotonic nanomaterials and devices. Biophotonics Nanophotonics Photonic Crystals Tell me more |
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LOW-VOLTAGE OPTICAL PHASE MODULATORS AND TUNABLE FILTERS FOR OPTOELECTRONICSTech for Transfer TTO 19-01-2016 This technology is a novel design for on-chip optical filters and phase modulators that employs waveguides constructed using photonic crystals with negative refractive indices. Photonic Crystals Waveguides Tell me more |
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NEW PHOTONIC SOLIDS SLOW DOWN LIGHT FOR OPTICAL APPLICATIONSTech for Transfer TTO 20-01-2016 New photonic band gap materials (called hyperuniform non-crystalline solids) that are insensitive to light propagation direction and capable of slowing down light which can be useful for thermal absorbers and sensors. Glass & other optical materials Photonic Crystals Tell me more |
