44 results about "Resonator mode" patented technology

A method of generating a single photon, includes preparing an optical resonator including a resonator mode of a resonance angular frequency ωc, preparing a material contained in the optical resonator, including a low energy state |g> and a high energy state |e>, and including a transition angular frequency ωa between |g>−|e> that is varied by an external field, applying, to the material, light of an angular frequency ωl different from the resonance angular frequency ωc, and applying a first external field to the material to vary the transition angular frequency ωa to resonate with the angular frequency ωl, such that a state of the material is changed to |e>, and then applying a second external field to the material to vary the transition angular frequency ωa to resonate with the resonance angular frequency ωc, such that the state of the material is restored to |g>.

The invention relates to a microelectromechanical resonators and a method of manufacturing thereof. The resonator comprises at least two resonator elements made from semiconductor material, the resonator elements being arranged laterally with respect to each other as an array, at least one transducer element coupled to said resonator elements and capable of exciting a resonance mode to the resonator elements. According to the invention, said at least one transducer element is a piezoelectric transducer element arranged laterally with respect to the at least two resonator elements between the at least two resonator elements and adapted to excite to the resonator elements as said resonance mode a resonance mode whose resonance frequency is dependent essentially only on the c44 elastic parameter of the elastic modulus of the material of the resonator elements. By means of the invention, electrostatic actuation and problems associated therewith can be avoided and accurate resonators can be manufactured.

A method includes causing a common-resonator mode resonating with a transition between |2>i and |3>i that are coupled to each other by a transition having a homogenous broadening ΔEhomo greater than an energy difference between |0>i and |1>i, an energy difference between |2>i and |3>i being greater than ΔEhomo, transferring states of m quantum bits represented by |0>k and |1>k to |4>k and |5>k, respectively, when a quantum-bit-gate operation using the common-resonator mode is executed between the quantum bits represented by m physical systems k, |E(|u>k)−E(|v>k)|>ΔEhomo, u, vε{2, 3, 4, 5}, u≠v, executing adiabatic passage between the physical systems k, using light that resonates with a transition between |3>k and |4>k and a transition between |3>k and |5>k, executing the quantum-bit-gate operation between the quantum bits, and transferring, to |0>k and |1>k, the states represented by |4>k and |5>k, respectively.

A wireless power receiver capable of receiving wireless power from close-coupled and mid-range wireless power supplies. The wireless power receiver includes a principal and supplemental receiver circuits. The principle receiver circuit is adjustable to operate in a close-coupled mode or a resonator mode. In close-coupled mode, the principle receiver circuit is coupled to the power input of a remote device and functions as the principle power source. In resonator-mode, the principle power circuit is electrically disconnected / isolated from the remote device and forms a closed resonant loop to function as a resonator that amplifies an electromagnetic field from a mid-range wireless power supply. The supplemental receiver circuit is coupled to the power input of the remote device and is configured to receive wireless power from the resonator and function as the power source when the principle receiver circuit is in the resonator mode.

Quantum information processing device includes resonator incorporating material containing physical systems, each of physical systems having at least four energy states, transition between two energy states of at least four energy states, and transition energy between at least two energy states of at least four energy states, at least four energy states being non-degenerate when magnetic field fails to be applied to physical systems, transition resonating in resonator mode that is in common between physical systems, each of at least four energy states representing a quantum bit, transition energy being shifted when magnetic field is applied to physical systems, and magnetic-field application unit configured to apply magnetic field having direction and intensity to material, to eliminate linear transition energy shift between two energy states included in physical systems, each of two energy states included in physical systems being with excluding two energy states resonating in resonator mode.

Quantum computer includes optical resonator including system group containing systems each having energy states highest-energy state |3>, and other two energy states |1> and |2>, fourth or more states |p>, transition angular frequency (ωij) between |i> and |j>, homogeneous broadening (Δωhomo,ij) in transition angular frequency between |i> and |j>, optical resonator having resonator modes, ωck of kth resonator mode, and emitting unit configured to emit light beam to system group, and wherein |ωcl−ωcm|>Δωhomo,23, system group includes system subgroups Aq having respective ω23 which resonate with respective ωcq of resonator modes, and emitting unit is arranged to apply light beam of two wavelengths and other light beam to s(1)th quantum bit Aqs(1) (s(1)1˜r) formed of r systems selected from each Aq, light beam of two wavelengths simultaneously causing two-photon resonance on Aq at ω12 or ω1p, other light beam simultaneously causing one-photon resonance on Aq at ω13 or ωp3.

A method includes causing a common-resonator mode resonating with a transition between |2>i and |3>i that are coupled to each other by a transition having a homogenous broadening ΔEhomo greater than an energy difference between |0>i and |1>i, an energy difference between |2>i and |3>i being greater than ΔEhomo, transferring states of m quantum bits represented by |0>k and |1>k to |4>k and |5>k, respectively, when a quantum-bit-gate operation using the common-resonator mode is executed between the quantum bits represented by m physical systems k, |E(|u>k)−E(|v>k)|>ΔEhomo, u, vε{2, 3, 4, 5}, u≠v, executing adiabatic passage between the physical systems k, using light that resonates with a transition between |3>k and |4>k and a transition between |3>k and |5>k, executing the quantum-bit-gate operation between the quantum bits, and transferring, to |0>k and |1>k, the states represented by |4>k and |5>k, respectively.

Quantum computer includes optical resonator including system group containing systems each having energy states highest-energy state |3>, and other two energy states |1> and |2>, fourth or more states |p>, transition angular frequency (ωij) between |i> and |j>, homogeneous broadening (Δωhomo,ij) in transition angular frequency between |i> and |j>, optical resonator having resonator modes, ωck of kth resonator mode, and emitting unit configured to emit light beam to system group, and wherein |ωcl−ωcm|>Δωhomo,23, system group includes system subgroups Aq having respective ω23 which resonate with respective ωcq of resonator modes, and emitting unit is arranged to apply light beam of two wavelengths and other light beam to s(1)th quantum bit Aqs(1) (s(1)1˜r) formed of r systems selected from each Aq, light beam of two wavelengths simultaneously causing two-photon resonance on Aq at ω12 or ω1p, other light beam simultaneously causing one-photon resonance on Aq at ω13 or ωp3.

Photon emitter and data transmission device wherein a second resonator is arranged in a direction of emission of a radiation-emitting first resonator in such a way that a quantum dot contained in the second resonator can be excited by energy of radiation emitted by the first resonator. A control unit brings the excitation ground state of the quantum dot into resonance with a prescribed resonator mode of the second resonator.

The invention discloses a CMUT for gas sensing and preparation method thereof. All vibration films in a single working area are connected in parallel in an electrode connection mode, and the connection line of an upper electrode and the connection line of a lower electrode are distributed in a 90-degree manner, so that the signal intensity is increased, and the parasitic capacitance is reduced. When low-concentration gas is detected, only the first working area works in a resonator mode; and when the gas concentration is increased to exceed the adsorption saturation concentration of the sensitive material, the second working area cooperates with the first working area to work in an ultrasonic transducer mode. The sensor has a calibration compensation area, so that the detection reliabilityis improved. The preparation method comprises the following steps: sputtering a layer of lower electrode in a cavity and a channel of the etched glass substrate by adopting a mode of bonding the glass substrate and the SOI wafer, and grounding the lower electrode to be used as a lower electrode of a parallel capacitor. The vibration film is a composite film consisting of a monocrystalline siliconvibration film and a buried oxide layer.

A photon pair generating device capable of further increasing generation efficiency of a correlation photon pair is provided, the photon pair generating device generating the correlation photon pair by a hyper-parametric scattering. A quantum well (4) is provided in a resonator (2). An incident light radiated from a light source (6) to the resonator (2) resonates therein and becomes a particular resonator mode. The generation efficiency of the correlation photon pair by the hyper-parametric scattering in the quantum well 4 is enhanced by disposing the quantum well (4) in a position where electric field strength of the light becomes higher by this resonator mode.

A longitudinally-coupled resonator mode SAW filter portion having at least two interdigital transducers (IDTs) is disposed on a piezoelectric substrate. At least one SAW resonator is electrically connected in parallel with the SAW filter portion such that the at least one SAW resonator is disposed between an input terminal or an output terminal and the SAW filter portion. The resonance point of the SAW resonator is disposed in the pass band of the SAW filter portion.

The invention relates to a MEMS resonator having at least one mode shape comprising: a substrate (2) having a surface (12), and a resonator structure (1), wherein the resonator structure (1) is part of the substrate (2), characterized in that the resonator structure (1) is defined by a first closed trench (3) and a second closed trench (3), the first trench (3) being located inside the second trench (3) so as to form a tube structure (1) inside the substrate (2), and the resonator structure (1) being released from the substrate (2) only in directions parallel to the surface (12). The invention further relates to a method of manufacturing such a MEMS resonator.

A method and a system method for generating optical multipartite quantum states, comprising generating optical fields by at least two different spontaneous four-wave mixing processes and overlapping the optical fields spontaneously generated from the different spontaneous four-wave mixing processes into a same resonator mode of a third-order nonlinear resonator. The system comprises a multi-colored laser source exiting a nonlinear third-order resonator at different resonance frequencies belonging to different mode families of the resonator.

Quantum information processing device includes resonator incorporating material containing physical systems, each of physical systems having at least four energy states, transition between two energy states of at least four energy states, and transition energy between at least two energy states of at least four energy states, at least four energy states being non-degenerate when magnetic field fails to be applied to physical systems, transition resonating in resonator mode that is in common between physical systems, each of at least four energy states representing a quantum bit, transition energy being shifted when magnetic field is applied to physical systems, and magnetic-field application unit configured to apply magnetic field having direction and intensity to material, to eliminate linear transition energy shift between two energy states included in physical systems, each of two energy states included in physical systems being with excluding two energy states resonating in resonator mode.

A method and a system method for generating optical multipartite quantum states, comprising generating optical fields by at least two different spontaneous four-wave mixing processes and overlapping the optical fields spontaneously generated from the different spontaneous four-wave mixing processes into a same resonator mode of a third-order nonlinear resonator. The system comprises a multi-colored laser source exiting a nonlinear third-order resonator at different resonance frequencies belonging to different mode families of the resonator.

A surface acoustic wave filter apparatus includes extensional-coupling-resonator-mode first through fourth SAW filter devices which are disposed on a piezoelectric substrate. Each SAW filter device includes three interdigital transducers (IDTs) arranged in a SAW propagating direction, and reflectors arranged such that they sandwich the IDTs therebetween. The SAW filter devices have a balanced-to-unbalanced input / output function. The reflectors of the first and second SAW filter devices are different from those of the third and fourth SAW filter devices in at least one of the number, the pitch, the duty, and the thickness of the electrode fingers of the reflectors.

A new fiber-optic magnetic field or current sensor design can increase the accuracy, resolution and environmental stability of the subject sensor. The design is based on phase-shifted fiber or planar waveguide Bragg grating, in which a Fabry-Perot resonator is formed around the phase shift. When the wavelength of incident light coincides with the wavelength of FP resonator mode, the magnetic field induced polarization rotation of the waveguided light will be strongly enhanced.

An apparatus includes a material in a resonator and containing systems, each of the systems having five energy states, a unit generating first and second pulse that resonate in a second transition and a third transition, respectively, a unit controlling the first and second pulse to make the first and second pulse temporally overlap each other to obtain third light, a unit emitting the third light to each system, a unit generating observation light to be coupled to the resonator mode, a unit introducing the observation light to the resonator from an outside thereof, a unit reading one of quantum bits by measuring an intensity of one of reflected light and transmitted light of the observation light, a unit controlling the first and second pulse to make the first and second pulse temporally overlap each other to obtain fourth light, and a unit emitting the fourth light to each system.

A photon pair generating device capable of further increasing generation efficiency of a correlation photon pair is provided, the photon pair generating device generating the correlation photon pair by a hyper-parametric scattering. A quantum well is provided in a resonator. An incident light radiated from a light source to the resonator resonates therein and becomes a particular resonator mode. The generation efficiency of the correlation photon pair by the hyper-parametric scattering in the quantum well is enhanced by disposing the quantum well in a position where electric field strength of the light becomes higher by this resonator mode.

A waveguide is constructed by sandwiching a transparent member (4) and a laser medium (5) between a first clad 3-1 and a second clad 3-2. Pumping light (8) is made to be incident from a direction perpendicular to a direction of the optical axes of first to fourth laser oscillation light beams 9-1 to 9-4, and to alternately propagate through the transparent member (4) and the laser medium (5) in a zigzag manner so as to pump only resonator mode regions in the laser medium (5).

The invention discloses a prism type detection system for loss and gain ratios between resonator modes and a detection method. The detection system comprises a prism type laser connected with a resonator mode state servo controller. Outgoing laser beams are projected to a double-light window photoelectric detector through a coupling output lens, the double-light window photoelectric detector is arranged on an open servo base which is respectively connected with an oscilloscope and a computer, and the open servo base is also connected with the resonator mode state servo controller. The method includes the steps that 1) the outgoing laser beams of the prism type laser are projected to the double-light window photoelectric detector; 2) the servo base exerts mechanical dithering; 3) dithering optical signals of the double-light window photoelectric detector are modulated and read through the oscilloscope; 4) the position, where the prism type laser outputs light, relative to the double-light window photoelectric detector is adjusted until two paths of signal amplitudes are the same; 5) the double-light window photoelectric detector collects light intensity signals, and the light intensity signals are input into the servo base; 6) the result is transmitted to the computer. The system is simple in visualization operation, convenient and fast to process and accurate in detection result.

An apparatus includes a material in a resonator and containing systems, each of the systems having five energy states, a unit generating first and second pulse that resonate in a second transition and a third transition, respectively, a unit controlling the first and second pulse to make the first and second pulse temporally overlap each other to obtain third light, a unit emitting the third light to each system, a unit generating observation light to be coupled to the resonator mode, a unit introducing the observation light to the resonator from an outside thereof, a unit reading one of quantum bits by measuring an intensity of one of reflected light and transmitted light of the observation light, a unit controlling the first and second pulse to make the first and second pulse temporally overlap each other to obtain fourth light, and a unit emitting the fourth light to each system.

A method of generating a single photon, includes preparing an optical resonator including a resonator mode of a resonance angular frequency ωc, preparing a material contained in the optical resonator, including a low energy state |g> and a high energy state |e>, and including a transition angular frequency ωa between |g>−|e> that is varied by an external field, applying, to the material, light of an angular frequency ωl different from the resonance angular frequency ωc, and applying a first external field to the material to vary the transition angular frequency ωa to resonate with the angular frequency ωl, such that a state of the material is changed to |e>, and then applying a second external field to the material to vary the transition angular frequency ωa to resonate with the resonance angular frequency ωc, such that the state of the material is restored to |g>.

The invention discloses a prism type detection system for loss and gain ratios between resonator modes and a detection method. The detection system comprises a prism type laser connected with a resonator mode state servo controller. Outgoing laser beams are projected to a double-light window photoelectric detector through a coupling output lens, the double-light window photoelectric detector is arranged on an open servo base which is respectively connected with an oscilloscope and a computer, and the open servo base is also connected with the resonator mode state servo controller. The method includes the steps that 1) the outgoing laser beams of the prism type laser are projected to the double-light window photoelectric detector; 2) the servo base exerts mechanical dithering; 3) dithering optical signals of the double-light window photoelectric detector are modulated and read through the oscilloscope; 4) the position, where the prism type laser outputs light, relative to the double-light window photoelectric detector is adjusted until two paths of signal amplitudes are the same; 5) the double-light window photoelectric detector collects light intensity signals, and the light intensity signals are input into the servo base; 6) the result is transmitted to the computer. The system is simple in visualization operation, convenient and fast to process and accurate in detection result.

An on-chip antenna comprising an electrically insulating substrate having first and second faces; a metal layer arranged on the second face; and, a dipole antenna structure arranged on the first face, the dipole antenna structure comprising a dipole antenna and a feed structure connected to the dipole antenna; the on-chip antenna being configured such that when the feed structure is fed with an electrical signal it operates simultaneously in (i) at least one dielectric resonator mode to function as a dielectric resonance antenna, and (ii) at least one dipole mode to function as a cavity backed dipole antenna.

The invention discloses a single-cavity three-mode ceramic waveguide resonator and a filter, and belongs to the technical field of microwave communication. The resonator comprises a ceramic waveguide resonator body, three tuning blind holes and three coupling blind holes, the three tuning blind holes and the three coupling blind holes are located in the surface of the body, the tuning blind hole A1 and the coupling blind holes B1 and B2 are oppositely formed in the upper surface and the lower surface of the body, and the tuning blind holes A2 and A3 and the coupling blind holes B3 are formed in the four side faces. The depth of the coupling blind hole B3 is smaller than the depths of the tuning blind holes A2 and A3; the tuning blind hole A1 is used for adjusting the resonant frequency of a TE101 mode of the resonator, and the tuning blind holes A2 and A3 are respectively used for adjusting the resonant frequencies of two quasi TEM modes; the coupling blind hole B1 and the coupling blind hole B2 are respectively used for adjusting the coupling bandwidth between the TE101 mode of the resonator and the two quasi TEM modes, and the coupling blind hole B3 is used for adjusting the coupling bandwidth between the two quasi TEM modes. The size of the ceramic waveguide filter is reduced, and the out-of-band rejection characteristic of the filter is improved.

A laser amplifier system is provided which comprises a resonator with optical resonator elements which determine a course of a resonator radiation field which propagates along an optical axis and at least one laser-active medium (LM). The resonator is designed as a split resonator and has a first resonator section which extends from a first virtual plane of separation and a second resonator section which extends from a second virtual plane of separation. The resonator sections are dimensioned optically such that the resonator radiation field has radiation field states corresponding to the same resonator modes in each of the virtual planes of separation. An amplifying unit optically independent of the resonator is arranged between the first and the second virtual planes of separation. The amplifying unit comprises the at least one laser-active medium and couples the radiation field states in a neutral manner with respect to the resonator modes.

A dielectric resonator antenna having a dielectric substrate with a ground plane and a dielectric resonator element arranged on the ground plane includes a conductive feeding assembly operable to excite one or more dielectric resonator modes of the dielectric resonator element for generation of a first circularly polarized electromagnetic field, and a radiating arrangement operable to produce a second circularly polarized electromagnetic field complementary to the first circularly polarized electromagnetic field. The first and second circularly polarized electromagnetic fields, when combined, are arranged to provide a unilateral circularly polarized electromagnetic field.