214 results about "Optical resonance" patented technology

An optical analysis unit especially suitable for performing grating coupled surface plasmon resonance (SPR) imaging features a pivoting light source capable of scanning through a range of angles of incident light projected onto a stationary target sensor, such as an SPR sensor. The reflected image from the illuminated sensor is detected, e.g., by a CCD camera and the image and angular scan data are processed, for example by a fitting algorithm, to provide real time analysis of reactions taking place on the surface of the sensor.

Provided is a light-emitting device which has a simple structure and can be manufactured in a simple process, has increased light coupling efficiency and brightness, and can reduce adverse effects of optical resonance on a view angle and emission spectrum. The light-emitting device includes a substrate; a light-emitting diode formed on the substrate; and an optical resonance layer formed outside the light-emitting diode that induces resonance of light emitted from the light-emitting diode.

Methods, devices and systems for harvesting energy from electromagnetic radiation are provided including harvesting energy from electromagnetic radiation. In one embodiment, a device includes a substrate and one or more resonance elements disposed in or on the substrate. The resonance elements are configured to have a resonant frequency, for example, in at least one of the infrared, near-infrared and visible light spectra. A layer of conductive material may be disposed over a portion of the substrate to form a ground plane. An optical resonance gap or stand-off layer may be formed between the resonance elements and the ground plane. The optical resonance gap extends a distance between the resonance elements and the layer of conductive material approximately one-quarter wavelength of a wavelength of the at least one resonance element's resonant frequency. At least one energy transfer element may associated with the at least one resonance element.

In a laser source, a first optical waveguide includes a gain medium, and a second optical waveguide includes a phase tuner which adjusts a phase value of the phase tuner to specify the wavelength of the laser source. Furthermore, the laser source includes a first ring resonator and a second ring resonator, which, respectively, are optically coupled to the first optical waveguide and the second optical waveguide at opposite ends of the laser source. In particular, coupling wavelengths of the first and second ring resonators may match a wavelength of the optical signal, thereby defining an optical resonance cavity in the laser source and selecting a laser mode of the laser source which is associated with the wavelength. Additionally, the laser source includes an optical amplifier that receives and amplifies the optical signal output from the optical resonance cavity.

Methods, devices and systems for harvesting energy from electromagnetic radiation are provided including harvesting energy from electromagnetic radiation. In one embodiment, a device includes a substrate and one or more resonance elements disposed in or on the substrate. The resonance elements are configured to have a resonant frequency, for example, in at least one of the infrared, near-infrared and visible light spectra. A layer of conductive material may be disposed over a portion of the substrate to form a ground plane. An optical resonance gap or stand-off layer may be formed between the resonance elements and the ground plane. The optical resonance gap extends a distance between the resonance elements and the layer of conductive material approximately one-quarter wavelength of a wavelength of the at least one resonance element's resonant frequency. At least one energy transfer element may be associated with the at least one resonance element.

A white or colored thixotropic gel is used in conjunction with an electro-mechanical addressable X-Y pixel array composed of micro-magnet pairs in order to produce a re-writable display surface for forming images. Images are formed on the surface of this display by changing the state of transparency of the gel surface, from semi-solid to semi-liquid as a result of thixotropic bond shearing. In addition, pixels are capsules filled with any given color. Furthermore, each active color capsule is forced upwards by magnetic repulsion between the twin-micro-magnet elements to help form images and break the surface tension of the gel and press against the front layer film and forming a visible pixel or; downwards to help erase the image by means of magnetic attraction between the two micro-magnets located directly underneath each pixel. In an embodiment of this invention, four or more layers of materials are bonded together in a flexible construct in order to provide to users a low-cost electronic paper-like display.

A virtual image display apparatus includes an organic EL device that outputs light having one kind of wavelength band, a light guide member, and a reflection-type volume hologram that is disposed on a first face of the light guide member and diffracts and reflects light of a predetermined wavelength band of the light that has entered. The organic EL device includes an optical resonance structure that causes the above-mentioned light of one-kind wavelength band to resonate.

In a micro-bridge structure in which a temperature detecting portion (diaphragm) including a bolometer thin film is supported by a supporting portion in a state floated from a circuit substrate, a reflective film reflecting a THz wave is formed on the circuit substrate, an absorbing film absorbing the THz wave is formed on the temperature detecting portion, and an optical resonance structure is formed by the reflective film and temperature detecting portion. A gap between the reflective film and temperature detecting portion measures approximately ¼ infrared wavelength (e.g., 1.5 to 2.5 μm). Sheet resistance of the temperature detecting portion is set in a range in which an absorptance of the THz wave becomes a predetermined value or above on the basis of the THz wave (approximately 10-100 Ω / sq.). The absorptance of the THz wave is drastically improved while using the structure and manufacturing technique of a bolometer-type infrared detector.

An optical resonance analysis system comprising a sensor means (60) and an illumination means (400) for generating non-monochromatic illumination. The illumination means (400) further comprises a means for generating illumination at a plurality of angles, a lens system for projecting said illumination at said plurality of angles (390) and a dispersive device (380) for dispersing said illumination at each of said plurality of angles so that there is a correlation between said plurality of angles and the wavelengths of said illumination such that a resonance condition is generated on said sensor mean (60) for all wavelengths generated by said non-monochromatic source simultaneously. The analysis system also comprises a detection means (90) for detecting the reflected or transmitted illumination. Another embodiment comprises an anamorphic imaging means (120).

An organic electroluminescent device induces optical resonance with a simple structure, the organic electroluminescent device including: a transparent substrate; a semi-transparent layer formed on the transparent substrate; a first anode layer formed on the semi-transparent layer as a predetermined pattern; a cathode layer formed of a metallic total reflection layer on the first anode layer; and an organic layer formed between the first anode layer and the cathode layer, which includes at least an emitting layer, wherein an optical distance between a top surface of the semi-transparent layer and a bottom of the cathode layer is determined to be a least integer multiple of half the peak wavelengths of light of a predetermined set of colors. Due to a resonance effect of the organic electroluminescent device, the emission efficiency of wavelengths of light of different colors is improved, and high-purity quality pictures may be displayed on the organic electroluminescent device.

An array surface plasmon resonance (SPR) analysis instrument comprising a reflective SPR sensor array, a light source assembly arranged to project a collimated beam of light onto the reflective SPR sensor array to provide a reflected array image of the sensor array, and to scan the incident angle of the collimated beam of light over an angular range, and a detector assembly oriented to receive the reflected array image of the sensor array over the angular range, the detector assembly comprises a two-dimensional detector sensing element that is tilted with respect to the optical axis of the lens assembly in accordance with the Scheimpflug condition, and a lens assembly for focusing the reflected array image of said SPR sensor array onto said tilted detector sensing element. The lens assembly comprises an objective section which is arranged to produce a virtual image of the tilted reflected array at infinity, followed by an imaging section arranged to transform the virtual image of the tilted reflected array into a real tilted image on the tilted detector sensing element.

Composite materials that can be used to block radiation of a selected wavelength range or provide highly pure colors are disclosed. The materials include dispersions of particles that exhibit optical resonance behavior, resulting in the radiation absorption cross-sections that substantially exceed the particles' geometric cross-sections. The particles are preferably manufactured as uniform nanosize encapsulated spheres, and dispersed evenly within a carrier material. Either the inner core or the outer shell of the particles comprises a conducting material exhibiting plasmon (Froehlich) resonance in a desired spectral band. The large absorption cross-sections ensure that a relatively small volume of particles will render the composite material fully opaque (or nearly so) to incident radiation of the resonance wavelength, blocking harmful radiation or producing highly pure colors. The materials of the present invention can be used in manufacturing ink, paints, lotions, gels, films, textiles and other solids having desired color properties. The materials of the present invention can be used in systems consisting of reflecting substances such as paper or transparent support such as plastic or glass films. The particles can be further embedded in transparent plastic or glass beads to ensure a minimal distance between the particles.

A plasmonic optical spectrum filtering device is provided that filters electromagnetic waves by optical resonance, for example, by selective conversion between the free-space waves and spatially confined modes in plasmonic nano-resonators. Frequency-selective transmission and reflection spectra are engineered and can be used as spectrum filters for display and imaging applications. A thin film stack color filter is further disclosed, which can be designed to either function as a transmission color filter with efficiency twice that of conventional colorant based color filter; or as a reflective color filter for display devices (e.g., used in an energy harvesting reflective display). In other variations, a novel reflective colored display is viewable under direct sunlight, and can simultaneously harvest both incident light and generate electrical power.; Methods of making such plamonic optical spectrum filtering devices are also provided.

A light-emitting device including: a substrate; a light-emitting diode; and an optical resonance layer to resonate light emitted from the light-emitting diode. The optical resonance layer includes a first layer, including a polysilsesquioxane-based copolymer. A linking group connecting two different silicon (Si) atoms of the polysilsesquioxane-based copolymer can be —O—, or a substituted or unsubstituted C1-C30 alkylene group.

A deterministic design and manufacturing of an ultrahigh Q-factor, wavelength-scale optical cavity is invented and experimentally demonstrated. The design can be implemented on photonic crystal nanobeam cavities, which are based on 1D optical waveguides. The waveguide has dielectric index alternations that provide constructive interference and produces optical resonance.

An optical resonator, a photonic system and a method of optical resonance employ optical waveguide segments connected together with total internal reflection (TIR) mirrors to form a closed loop. The optical resonator includes the optical waveguide segments, an intracavity active element coupled to a designated one of the optical waveguide segments, the TIR mirrors and a photo-tunneling input / output (I / O) port. The photo-tunneling I / O port includes one of the TIR mirrors. The method includes propagating and reflecting the optical signal, or a portion thereof, in the optical resonator, transmitting a portion of the optical signal through the I / O port, and influencing the optical signal. The photonic system includes the optical resonator with optical gain and a source of an optical signal.

A backlight unit includes a substrate, a plurality of light sources arranged on the substrate in a spaced-apart relationship with one another for irradiating lights, a total reflection layer for upwardly reflecting the lights irradiated from the light sources, and an optical layer disposed above the light sources and having an oxide compound layer laminated thereon. The optical layer is adapted to allow a part of the lights to pass through the optical layer but reflect the remaining part of the lights downwardly toward the substrate, to thereby induce the lights from the light sources to optically resonate. The optical resonance caused by the oxide compound-laminated optical layer helps to reduce the half amplitude of a color-based spectrum histogram in a light-emitting spectrum, thereby enhancing the color purity.

The invention relates to a reflectivity and transmittance comprehensive measurement method based on a pulse laser light source. The method includes the steps that a pulse laser light beam is split into a reference light beam and a detection light beam, the reference light beam is focused on a photoelectric detector for direct detection, and the detection light beam is injected into an optical resonance cavity. When an optical element with reflectivity larger than 99% is measured, a pulsed light cavity ring-down technology is adopted, ring-down time tau 0 of an output signal of the initial optical resonance cavity and ring-down time tau 1 of an output signal of the optical resonance cavity after the optical element to be detected is installed in the optical resonance cavity are measured, and reflectivity R of the optical element to be detected is obtained through calculation. When the value of R is smaller than 99%, a spectrophotometry is used for measuring the reflectivity of the optical element to be detected. An output cavity lens of the optical resonance cavity is moved away, detection light reflected from the optical element to be detected is focused on the photoelectric detector for detection, the light intensity signal ratio of the detection light beam and the reference light beam is recorded, and the reflectivity R of the optical element to be detected is obtained through calibration.

A microscope probe includes a substrate; an optical resonator disposed on the substrate and including an optical resonance property; a displacement member disposed on the substrate and separated from the optical resonator, the displacement member including: a first end disposed distal to the optical resonator; and a second end disposed proximate to the optical resonator; and a coupling member disposed on the substrate and connecting the displacement member to the substrate, wherein the first end is configured to probe a sample and to be displaced in response to a condition of the sample, the displacement member is configured to communicate displacement of the first end to the second end, and the second end is configured to change the optical resonance property in response to displacement of the second end

A thermometer includes a substrate; an optical resonator disposed on the substrate and including an optical resonance, the optical resonator being configured to receive a resonant frequency corresponding to the optical resonance; and a waveguide disposed on the substrate proximate to the optical resonator to receive input light, to communicate the resonant frequency to the optical resonator, and to transmit output light; wherein an aperture is interposed between: the substrate and the optical resonator, the substrate and the waveguide, or a combination comprising at least one of the foregoing, and the thermometer is configured to change the optical resonance in response to a change in temperature of the optical resonator.

A soliton generation apparatus comprising:an optical resonator;a pumping laser for providing light at a pumping wavelength into the optical resonator;a generator for generating multiple solitons in the optical resonator;a detuning device for changing the wavelength detuning between the pumping laser wavelength and an optical resonance wavelength of the optical resonator to remove at least one soliton of the generated multiple solitons to provide (i) a plurality of solitons that comprises at least one less soliton than that of the generated multiple solitons or (ii) a single soliton in the optical resonator.

An optically-powered integrated microstructure pressure sensing system for sensing pressure within a cavity. the pressure sensing system comprises a pressure sensor having an optical resonant structure subject to the pressure within the cavity and having physical properties changing due to changing pressures within the cavity. A substrate supports the optical resonant structure. An input optical pathway evanescently couples light into the optical resonant structure. An output optical pathway collects light from the optical resonance structure. A light source delivers a known light input into the input optical pathway whereby the known light input is evanescently coupled into the optical resonant structure by the input optical pathway and a portion of such light is collected from the optical resonant structure by the output optical pathway. A light detector receives the portion of the light collected from the optical resonant structure, and generates a light signal indicative of such portion of the light collected from the optical resonant structure. A temperature compensation sensor generates a temperature signal indicative of the temperature near the optical resonant structure. A spectrum detection device receives the light signal and temperature signal. The spectrum detection device analyzing the light signal and the temperature signal with a detection algorithm to generating a pressure signal indicative of the pressure within the cavity.

The invention is a tunable wavelength selecting / locking optical dense wave division multiplex wave combining / separating device, including an input port and eight wave separation output ports, two wavelength tuning selection combining components, and the wavelength locking control structure includes optical-fiber coupler, optical FP etalon, fast wavelength tuning filter, two fast photoelectric conversion probes, and differential amplifier tracking signal processor. The wavelength locking control structure collects and processes two optical signals of a primary optical path and controls the wavelength tuning selection combining components in the primary optical path by circuit feedback. The wavelength tuning selection combining components are packaged with many optical resonance cavities in parallel on an optical shared surface, adopt the electrooptical effect of electrooptical polymer film and the multi-reflection coherence theory of optical resonance cavities to form tuned filtering characteristic, making the output of each wave separation port of the multiplexer meet the design requirements on wavelength selection and wideband tuning, and it makes locking control on the central wavelength of each channel, stable and reliable.

A photonic system and method for optical data transmission in medical imaging system are provided. One photonic system includes a plurality of optical modulators having different optical resonance wavelengths and configured to receive electrical signals representative of a set of data from a medical imaging device. The photonic system also includes an optical waveguide interfacing with the plurality of optical modulators and configured to transmit an amplitude modulated beam of light at different frequencies to selectively modulate the plurality of optical modulators to transmit an encoded beam of light. The photonic system further includes receiver opto-electronics in communication with the optical waveguide configured to decode the encoded beam of light and convert the decoded beam of light into the electrical signals representative of the set of data.

An antireflective coating applied onto a substrate in the form of at least one layer of nanoparticles arranged on the aforementioned substrate at equal distances from each other in accordance with a specific nanostructure. The nanoparticles are made from a material that under effect of incident light generates between the neighboring particles optical resonance interaction with a frequency that belongs to a visible optical range. The interaction between the nanoparticles reduces reflection of the incident light. The nanoparticles have a radius in the range of 10 to 100 nm and a pitch between the adjacent particles that ranges between 1.5 diameters to several diameters.

The invention discloses a resonance optic gyro based on digital phase oblique wave frequency shift technology. The resonance optic gyro comprises an optical system composed of a tunable laser, an optical shunt, two phase demodulators, an optical resonance cavity and a photoelectric conversion module, and a processing circuit composed of two demodulation modules, two modulation signal generator modules, a frequency shift feedback control module and a feedback locking module, wherein a first signal extracted by the first demodulation module is controlled by the feedback locking module to adjust the central frequency of the tunable laser, and a second signal extracted by the second demodulation module is subjected to second frequency locking by the frequency shift feedback control module; and the output of the frequency shift feedback control module serves as the rotation output of the gyro. According to the invention, a resonance optic gyro structure is constructed, the digital phase oblique wave frequency shift technology is adopted in a second closed loop of the resonance optic gyro structure, the resonance optic gyro structure is favorable for miniaturization and integration of a system, improving the linearity and increasing the dynamic range of the system, and reducing reciprocity noise in the system.