Abstract: A quantum EIT-based optical switch includes a first waveguide, linear or nonlinear, a separate nonlinear waveguide evanescently coupled to the first waveguide, and a pump coupled to the nonlinear waveguide. A quantum STIRAP-based optical transduction device, which includes an auxiliary, intermediate spectral state for the quantum signal that aids efficient transduction of the quantum signal from the input spectral state to the output spectral state in a single device.

Abstract: A method for detecting a two-qubit correlated dephasing error includes accessing a signal of a quantum system, where the quantum system includes a plurality of qubits. Every qubit has a nonzero rate of dephasing and some qubits have a nonzero rate of correlated dephasing. The signal further includes information about a matrix that includes diagonal elements and off-diagonal elements. The off-diagonal elements of the matrix are 2s-sparse. The method further includes performing randomized measurements of the off-diagonal elements of the matrix and recovering the matrix based on a direct measurement of the diagonal elements of the matrix.

Abstract: A temporal magnification spectrometer includes a dual-chirp comb source, a signal leg, a local oscillator leg, an optical detector, and a temporal magnification analyzer. The dual-chirp comb source produces optical carrier laser light. A signal comb having signal linearly chirped waveforms interacts with a sample to produce a transmitted signal comb. The local oscillator leg produces a local oscillator comb having local oscillator linearly chirped waveforms. The optical detector receives the transmitted signal and local oscillator combs and produces an RF domain signal. The analyzer receives and Fourier transforms the RF domain signal to produce an RF comb, which is sampled to produce sampled RF comb lines, which are normalized to produce temporally magnified sample frequency domain data. Intermediate sample temporal data are normalized to produce a steady-state sample spectral response.

Abstract: Apparatus in accordance with embodiments of the present invention provide torque realization via electrical measurements traceable to the revised International Standard of Units (SI). Torque can be realized via a conversion of linear mechanism of a Kibble balance to a rotational mechanism. Embodiments of the present invention relates to an electronic torque realization apparatus including a rotor for holding permanent magnets and an encoder scale ring and for coupling to a torque device, a stator for characterizing physical aspects of a torque tool and for generating the torque on rotor in conjunction with the permanent magnets, a base plate for mounting a first end of rotor and stator, a cantilever for supporting a second end of rotor and for maintaining axial alignment, a bearing assembly for supporting the motion of rotor, and encoder for recording the angular position of rotor.

Abstract: Embodiments of the present invention relate to a system and method for detecting biological material on surfaces after decontamination with UV-C and with high sensitivity and having low detection limits while providing rapid and efficient response to accommodate high turnover. Embodiments of the present invention monitor the disinfection process by detecting changes in the electrical properties of surface-confined biological thin films photodegraded with UV-C radiation using microwaves (MW). MW sensing provides noninvasive, real-time detection of the electromagnetic properties of biological materials via concentrated electromagnetic fields, for which advantages include wide bandwidth, small size, and cost-effective fabrication.

Abstract: An amino acid-specific binder selectively binds to a binding amino acid. A binder complex selectively identifies the binding amino acid and includes an adjunct attached to the amino acid-specific binder. The adjunct includes a taggant, protein, substrate, or chemical modifier. Selectively identifying an N-terminal amino acid includes anchoring a C-terminal end; contacting an N-terminal amino acid of the anchored analyte with the binder complex; selectively binding when the N-terminal amino acid includes the binding amino acid; producing, by the taggant of the tagged complex, a taggant signal; detecting the taggant signal; and identifying the N-terminal amino acid based on the taggant signal.

Abstract: Embodiments of the present invention relate to apparatus and methods for dual comb spectroscopy with deterministic stepping and scanning of temporal pulse offset. In one embodiment, the present invention relates to a novel dual-comb spectroscopy including mode locked robust Er-combs and digital phase-locking electronics for step scanning between the two frequency combs and applicable to any phase-locked dual-comb system. The tight phase control of the DCS source allows for the control of temporal offset between the two comb pulses during measurements.

Abstract: A system for generating a coherent laser light includes a light source configured to pump a first color laser light and a device configured to generate a coherent second color light and a coherent third color light. The device includes a waveguide configured to couple to the light source and a microring resonator coupled to the light source via the waveguide. The microring resonator is configured to generate a coherent second color light and a coherent third color light. The generation of the coherent second color light and the coherent third color light is based on hybrid-mode optical parametric oscillation.

Abstract: A wireless flow rate apparatus measures flow rate in a fluid-conductive conduit and includes: the fluid conductive conduit comprising a non-rigid wall; a wireless sensor network including a flow sensor that detects vibrations of the fluid-conductive conduit, produces a sensor signal; and a wireless node that receives the sensor signal and wirelessly communicates the sensor signal; a base station that wirelessly receives the sensor signal; and a flow rate analyzer that receives the sensor signal from the base station and determines the flow rate of fluid in the fluid-conductive conduit from the sensor signal.

Abstract: An example electric circuit includes a superconductor component having a first terminal at a first end and a second terminal at a second end. The superconductor component includes a first portion coupled to the first terminal, a second portion coupled to the second terminal, and a third portion coupling the first portion and the second portion. The third portion has a curved shape such that the first portion of the superconductor component is proximate to, and thermally coupled to, the second portion of the superconductor component. The example electric circuit further includes a coupling component coupled to the third portion of the superconductor component, and a gate component configured to generate a resistive heat that exceeds a superconducting threshold temperature of the superconductor component, where the gate component is separated from the superconductor component by the coupling component.

Abstract: A double-balance electronic test apparatus can measure inductance, capacitance, and resistance more accurately than a single-balance meter. The double-balance electronic test apparatus includes two circuits to balance the impedance of a device under test, and uses the balance to calculate the inductance, capacitance, and resistance of the impedance device under test.

Abstract: A calibration apparatus for calibrating a laser Doppler vibrometer includes: a frequency shifter stage that: receives, from the laser Doppler vibrometer, primary laser light; produces frequency shifted light; communicates the frequency shifted light to a reflector; receives frequency shifted light reflected by the reflector; produces secondary light; and communicates the secondary light to the laser Doppler vibrometer, such that the laser Doppler vibrometer receives the secondary light from the frequency shifter stage and produces a synthetic velocity shift from the secondary light; and the reflector that receives and reflects the frequency shifted light back to the frequency shifter stage.

Abstract: Embodiments of the present invention relate to an optical detector system capable of detecting in the infrared and terahertz regions of the electromagnetic spectrum with increased sensitivity and simplicity. It includes microbolometers in an array, a waveguide for receiving readout light input from an optical light source, waveguide splitters for splitting the waveguide to output waveguides such that each microbolometer in the array is optically coupled to an output waveguide. The output waveguide is coupled to an optical resonator of the microbolometer at a resonance frequency to generate a readout light output having a characteristic based on a change in a characteristic of the optical resonator. The system further includes a detector for receiving the readout light output from each of the output waveguides to convert the readout light output to an electrical signal.

Abstract: A biomarker signal amplifier amplifies chemical analyte binding and includes: a surface strand disposed on an analysis substrate and including an exchange region; a particle strand hybridized to the surface strand in an absence of a chemical analyte that preferentially hybridizes to the exchange region as compared with the particle strand, and the particle strand is dissociated from the surface strand when the surface strand is in a presence of the chemical analyte; and a reporter particle attached to the particle strand and disposed proximate to the analysis substrate when the particle strand is hybridized to the surface strand in absence of the chemical analyte and that changes the electrical potential of the analysis substrate depending on whether the particle strand is hybridized to the surface strand.

Abstract: A photonic Rydberg atom radio frequency receiver includes: an integrated photonic chip; an atomic vapor cell; and a receiver member including: a photonic emitter; probe light reflectors disposed on the atomic vapor cell; and coupling light reflectors disposed on the atomic vapor cell such that the pair of coupling light reflectors is optically opposed across the interior vapor space and receives and reflects the coupling laser light so that the coupling laser light is reflected between the coupling light reflectors multiple times in the interior vapor space of the atomic vapor cell.

Abstract: Embodiments of the present invention relate to a system and method for performing temperature-dependent measurements of a magnetic nanoparticle sample. The system includes high frequency coils and sample temperature tunable assembly to determine the specific relaxation process for magnetic nanoparticle sample using both time and frequency domain techniques. During the temperature-dependent measurements of a magnetic nanoparticle sample, system in accordance with embodiments of the present invention resolve the nanoparticle dynamics using a temperature-tunable dual mode, AC susceptibility and magnetic relaxometry, to cover a broad range of frequencies and time scales. Other operational modes of the invention can drive the nanoparticles with arbitrary waveforms (sinusoidal, sum of sinusoids, or repeated pulses) to elicit and measure tailored response behavior from the magnetic nanoparticle sample.

Abstract: A circulator includes a central circuit having a first superconducting island, a second superconducting island, a third superconducting island, and a central island, each in electrical communication with each other via a plurality of Josephson junctions.

Abstract: A gravity-enforced photon momentum radiometer incudes: a magnetic array; a diamagnetic shuttle that levitates above the magnetic array; a mirror on the diamagnetic shuttle that receives laser light and moves the diamagnetic shuttle due to the optical force; a tiltable platform for the magnetic array; a photogate producing gate light that can be blocked by a photo interrupter and that produces a detector signal that provides a position of the diamagnetic shuttle relative to the tiltable platform for determining a position of the diamagnetic shuttle relative to the photogate.

Abstract: The present disclosure relates to a real-time quantification method of cell viability through a supravital dye uptake using a lens-free imaging system. The method includes a step of incubating a sample cell in a cell culture medium, steps of detecting light penetrating the cell culture medium and identifying a boundary region of the sample cell at a preset time interval based on the detected light, a step of staining the incubated sample cell with the supravital dye, a step of detecting intensity of light penetrating the cell culture medium at a preset time interval, a step of calculating absorbance of the sample cell included in the cell culture medium at a preset time interval based on the boundary region and the detected intensity of light and a step of analyzing a viability of the sample cell based on the calculated absorbance.

Abstract: An optomechanical accelerometer includes: a fiducial mass for a microscale Fabry-Perot optical cavity; a proof mass for the microscale Fabry-Perot optical cavity, such that the proof mass oscillates in a displacement motion toward and away from the fiducial mass in response to acceleration of the optomechanical accelerometer; a basal member; microscale beams that mechanically suspend the proof mass from the basal member; and the microscale Fabry-Perot optical cavity that has a cavity resonance at a cavity resonance wavelength provided by the cavity length, receives excitation radiation at an excitation wavelength that is reflected in the cavity as dynamic cavity light when the excitation wavelength is resonant with the cavity resonance wavelength, and transmits the dynamic cavity light as cavity output light when the dynamic cavity light is produced from the excitation radiation.