| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 359244000 | Opto-optical device | 26 |
| 20080266640 | Structure and method for modulating light - A structure includes a film having a plurality of nanoapertures and a semiconductor layer in connection with the film. The nanoapertures are configured to allow the transmission of a predetermined subwavelength of light through the film via the plurality of nanoapertures. The semiconductor layer facilitates the modulation of the predetermined subwavelength of light transmitted through the film. The structure also includes a carrier generator for modulating the predetermined subwavelength of light by generating charge carriers | 10-30-2008 |
| 20100053720 | LIGHT SOURCE APPARATUS WITH MODULATION FUNCTION AND ITS DRIVING METHOD - A light source apparatus with modulation function has a wavelength conversion module ( | 03-04-2010 |
| 20100245969 | COUPLED QUANTUM WELL STRUCTURE - In the production of optical devices or the like utilizing an intersubband transition of a coupled quantum well, a quantum well structure having strong coupling is provided. In addition, a coupled well structure of excellent productivity capable of avoiding thinning of coupling barrier layer for strengthening the coupling is provided. In the semiconductor coupled well structure of the present invention, a coupled quantum well structure disposed on the semiconductor single crystal substrate includes a coupling barrier layer | 09-30-2010 |
| 20110013253 | INTEGRATED PLANAR DEVICE FOR LIGHT GUIDING, CONCENTRATING, AND WAVELENGTH SHIFTING - The invention relates to an integrated film which includes a plasmonic layer including a pattern configured to support plasmon waves. The plasmonic layer is configured to receive as input light energy of an incident light including at least one photon having a first wavelength and an at least one photon of light received from one or more layers in optical communication with the plasmonic layer and to re-emit as output a guided light to the one or more layers in optical communication with the plasmonic layer. The integrated film also includes a wavelength conversion layer optically coupled to the plasmonic layer. The wavelength conversion layer is configured to receive as input the at least one photon having a first wavelength and to provide as output at least one photon having a second wavelength different than the first wave length. | 01-20-2011 |
| 20110149364 | OPTICAL DEVICE AND METHOD FOR ITS MANUFACTURE - An optical device which can operate as a single photon emitter | 06-23-2011 |
| 20120134002 | CONTROLLING ABSORPTION OF LIGHT IN A CAVITY - Described is a method of controlling the absorption of light in a cavity, a system in which absorption is so controlled, and an interferometer embodying the underlying physical concept. Materials can be made to completely absorb incident light when the light is imposed in a specific pattern of illumination. Coherent perfect absorption, as the process is referred to, is achieved when a cavity is illuminated coherently and monochromatically by the time-reverse of the output of a lasing mode. Varying the parameters of the incident light and/or of the cavity allows the absorption of the incident light by the cavity to be controlled; enhanced or even reduced. | 05-31-2012 |
| 20120140308 | WINDOW TINTING SYSTEMS - Window tinting systems provides a vehicle window tint control within the interior of a vehicle permitting a driver and/or passenger to adjust the level of tint of the vehicle window. The system may generally comprise an integrally wired photochromic component, a wiring assembly, a driver's control panel, and at least one passenger's controller. A specialty film may be coupled to the vehicle window and may serve to control the amount of sun light penetrating the vehicle window. The driver's control panel and passenger's control panel may adjustably control the tint level of the vehicle window. | 06-07-2012 |
| 20120275007 | OPTICAL DEVICES FOR MODULATING LIGHT OF PHOTOREFRACTIVE COMPOSITIONS WITH THERMAL CONTROL - Described herein are optical devices comprising a photorefractive layer and at least two inert layers, such that the photorefractive layer is sandwiched between the two inert layers. The photorefractive layer may include a photorefractive composition that is photorefractive upon irradiation by a laser beam. In some embodiments, the photorefractive composition is formulated such that a grating that is irradiated into the photorefractive composition can be read out of the photorefractive composition without applying an external bias voltage. Furthermore, a grating that is written into the composition may be controlled using thermal treatment. | 11-01-2012 |
| 20120293854 | NON-LINEAR MATERIALS AND RELATED DEVICES - A non-linear optical device comprising a non-linear element made of a plasmonic material with a periodic structure having a period smaller than the wavelength of a non-linear process intrinsic to the plasmonic material. The plasmonic material is implemented as a gold film which is structured with a periodic array of asymmetric split ring slits. The metamaterial framework of the plasmonic material itself is used as the source of a strong and fast non-linearity. The cubic non-linear response is resonantly enhanced through the effect of the metamaterial structuring by more than two orders of magnitude and its sign and magnitude can be controlled by varying the metamaterial pattern. | 11-22-2012 |
| 20130016415 | SYSTEM FOR CONTROLLING DYNAMIC OPTICAL ILLUSION IMAGESAANM Kurtz; Andrew F.AACI MacedonAAST NYAACO USAAGP Kurtz; Andrew F. Macedon NY USAANM Kane; Paul JamesAACI RochesterAAST NYAACO USAAGP Kane; Paul James Rochester NY US - A system for controlling a printed dynamic optical illusion image, comprising: an item including a printed optical illusion image having one or more mutable portions that can be controllably switched between first and second appearance states by application of an appropriate external stimulus; a stimulus source for providing the external stimulus; and a controller for controlling the stimulus source. The printed optical illusion image is printed on a printing device using a plurality of colorants, one or more of the colorants being appearance mutable colorants having spectral characteristics that can be controllably switched between a first colorant state and a second colorant state by applying the appropriate external stimulus, the one or more mutable portions of the optical illusion image being printed using at least one appearance mutable colorant. | 01-17-2013 |
| 20130250392 | VARIABLE TRANSMITTANCE OPTICAL FILTER AND USES THEREOF - Variable transmittance optical filters capable of transitioning from a light state to a dark state on exposure to UV radiation and from a dark state to a light state with application of an electric voltage are provided. The optical filters comprise a switching material that comprises one or more chromophores that have electrochromic and photochromic properties. | 09-26-2013 |
| 20140177024 | METHODS USING AN INTENSE CONTROL LIGHT AT A FIRST WAVELENGTH TO CAUSE A WHISPERING GALLERY MODE RESONATOR TO SELF TUNE AT A SECOND WAVELENGTH, AND APPARATUS EMPLOYING SUCH METHODS SUCH AS OPTICAL PASS/STOP BAND FILTERS AND OPTICAL DEMULTIPLEXERS - An all-photonic method to cause a WGM resonator to self-tune to a given wavelength is described. Such all photonic approaches include simply superimposing intense light of a wavelength in a range different from that of a signal wave. The wavelength of the pass band for the signal wavelength can be tuned by adjusting the wavelength (and/or the intensity) of the intense light. | 06-26-2014 |
| 20140204442 | CONTROLLING ABSORPTION OF LIGHT IN A CAVITY - Described is a method of controlling the absorption of light in a cavity, a system in which absorption is so controlled, and an interferometer embodying the underlying physical concept. Materials can be made to completely absorb incident light when the light is imposed in a specific pattern of illumination. Coherent perfect absorption, as the process is referred to, is achieved when a cavity is illuminated coherently and monochromatically by the time-reverse of the output of a lasing mode. Varying the parameters of the incident light and/or of the cavity allows the absorption of the incident light by the cavity to be controlled; enhanced or even reduced. | 07-24-2014 |
| 20140327949 | Window Having Active Transparency Control - An active, transparency-controlled window comprises at least one layer of a material that is transparent to at least selected wavelengths of light; at least one layer of photochromic material having a transparency, to the at least selected wavelengths of light, that can be controllably altered by an activating light; and a controllable source of light that activates the photochromic material to controllably alter the transparency of the photochromic material to the at least selected wavelengths of light. The material that is transparent to at least selected wavelengths of light may be a material selected from the group consisting of glass and plastic. | 11-06-2014 |
| 20140362428 | METHOD AND DEVICE FOR ACTIVATING PHOTOCHROMIC MATERIALS WITHIN A VEHICLE - The present invention relates to a device and method of reversibly activating photochromic materials within an enclosed vehicle using one or more ultraviolet (UV) sources located within the interior of a vehicle. Upon activation, such UV sources cause the photochromic materials to darken; upon deactivation, the photochromic materials revert to their clear state. The photochromic materials may form part of a pair of eyeglasses ( | 12-11-2014 |
| 20150036204 | OPTICAL FILTER WITH LIGHT SOURCE - An apparatus comprising a switchable optical filter comprising a layer of switchable material, the switchable material comprising a photochromic/thermochromic, a photochromic/photochromic, or a photochromic/electrochromic compound; a first light source providing light of a wavelength that causes the switchable material to transition from a faded state to a dark state, or a dark state to a faded state; and a switch for controlling activation of the first light source | 02-05-2015 |
| 20150049377 | OPTICAL DEVICES, SYSTEMS AND METHODS - First and second coherent light beams of the same wavelength are propagated in opposite directions to interact on a sub-wavelength thickness metallic metamaterial layer which is structured with a periodicity such that there is a resonance matched to the wavelength of the coherent beams. The first beam is then able to modulate the intensity of the second beam by modulating the phase and/or intensity of the first beam. The interference of the counter- propagating beams can eliminate or substantially reduce Joule loss of light energy in the metamaterial layer or, on the contrary, can lead to a near total absorption of light, depending on the mutual phase and/or intensity of the interacting beams. A modulation is thus provided without using a non-linear effect. | 02-19-2015 |
| 20150124307 | QUANTUM INTERFERENCE DEVICE, ATOMIC OSCILLATOR, AND MAGNETIC SENSOR - A quantum interference device includes: gaseous alkali metal atoms; and a light source for causing a resonant light pair having different frequencies that keep a frequency difference equivalent to an energy difference between two ground states of the alkali metal atoms, the quantum interference device causing the alkali metal atoms and the resonant light pair to interact each other to cause an electromagnetically induced transparency phenomenon (EIT), wherein there are a plurality of the resonant light pairs, and center frequencies of the respective resonant light pairs are different from one another. | 05-07-2015 |
| 20150301361 | Optical Absorber - The invention relates to an optical absorber comprising a semiconductor micro or nano scale structured array configured for transmission of electromagnetic (EM) radiation when in a passive state and for absorption and/or reflection of electromagnetic (EM) radiation when in an active state. The absorber also includes an activator arranged to inject free carriers into the structured array to activate said array on demand. | 10-22-2015 |
| 20150378243 | Devices, Systems And Methods For Ultrafast Optical Applications - An optical device capable of an ultrafast and large change of its reflection or absorption coefficient upon being excited by an ultrafast optical pulse with wavelength in the visible, near-infrared, or infrared spectral regions. The optical device includes, in sequential order, a first thick metallic layer, a first dielectric layer, a second thin metallic layer, and a second dielectric layer. The optical device acts as a nonlinear mirror that presents a large reflectance at low irradiance and a low reflectance at large irradiance. The optical device can further act as a nonlinear mirror that presents a linear and nonlinear reflectance with a large angular bandwidth. | 12-31-2015 |
| 20160018675 | PLASMONIC ALL-OPTICAL SWITCH AND LIGHT CONTROL METHOD USING THE SAME - A plasmonic all-optical switch includes a graphene layer, a first dielectric layer located on the graphene layer, a nano-antenna located on the first dielectric layer, and a second dielectric layer located on the nano-antenna. An incident beam is propagated by means of a surface plasmon wave generated at an interface between the graphene layer and the first dielectric layer. Further, localized surface plasmon resonance is selectively generated at an interface between the nano-antenna and the second dielectric layer by means of a pump beam incident to the nano-antenna to decrease an intensity of the incident beam. The plasmonic all-optical switch may operate at an ultrahigh speed just with a small light energy without any electric method, greatly reduce power consumption of an IT device by applying to an all-optical transistor or the like, and increase a processing rate. | 01-21-2016 |
| 20160085131 | VARIABLE TRANSMITTANCE OPTICAL DEVICES - A self-powered variable transmittance optical device, such as a smart window or other device, and associated method are provided. The device comprises one or more transparent substrates, with a switching material disposed thereon or therebetween. The switching material may be a hybrid photochromic/electrochromic material capable of transitioning from a first transmittance state to a second transmittance state with application of electricity, and from second state to first state due to another stimulus, such as UV radiation. Electrodes are coupled to the switching material for applying electricity. An electrical system provides for controllable application of the electricity, and may store energy. Energy is provided by an energy-harvesting power source such as a solar cell or other photovoltaic source, or array thereof, or another device for harvesting vibrational or thermal energy. Energy harvesting, energy storage capacity and/or switching material may be configured to provide at least a predetermined level of device operability | 03-24-2016 |
| 20160103341 | Actively Tunable Polar-Dielectric Optical Devices - Optical devices that include one or more structures fabricated from polar-dielectric materials that exhibit surface phonon polaritons (SPhPs), where the SPhPs alter the optical properties of the structure. The optical properties lent to these structures by the SPhPs are altered by introducing charge carriers directly into the structures. The carriers can be introduced into these structures, and the carrier concentration thereby controlled, through optical pumping or the application of an appropriate electrical bias. | 04-14-2016 |
| 20160154257 | WINDOW HAVING ACTIVE TRANSPARENCY CONTROL | 06-02-2016 |
| 20160202402 | PHOTOCHROMIC SOLAR CONTROL FILMS | 07-14-2016 |
| 20160252740 | 3D GLASSES AND DISPLAY DEVICE | 09-01-2016 |
