A micro object control apparatus for controlling motion of a micro object within a medium includes a light source, an optical vortex generation unit, an objective lens, an imaging unit, an analysis unit, and a movement unit. The analysis unit acquires first motion information of the micro object based on the image data in which the micro object optically trapped with the optical vortex is imaged by setting the focal position of the optical vortex to a first position, acquires second motion information of the micro object based on the image data in which the micro object optically trapped with the optical vortex is imaged by setting the focal position of the optical vortex to a second position, and evaluates a state of an optical trap of the micro object with the optical vortex by comparing the first motion information and the second motion information.

An atomic interferometer and methods for measuring phase shifts in interference fringes using the same. The atomic interferometer has a laser beam traversing an ensemble of atoms along a first path and an optical components train with at least one alignment-insensitive beam routing element configured to reflect the laser beam along a second path that is anti-parallel with respect to the first laser beam path. Any excursion from parallelism of the second beam path with respect to the first is rigorously independent of variation of the first laser beam path in yaw parallel to an underlying plane.

An optical system comprising trapping optics for forming an optical trap using counter propagating beams of light and light sheet imaging optics for light sheet imaging a particle, for example a cell, that is positioned in the optical trap, wherein the wavelength of the counter propagating beams of light and the wavelength of the light used for light sheet imaging are non-interfering.

The present disclosure provides for a system and method of concentrating airborne particles, specifically toward the center of one or more intake channels of PM sensors. The invention provides a simple and cost effective device that, when used in conjunction with a MEMS PM sensor or the like, can increase the sensitivity of said device by orders of magnitude. An in-line MEMS PM concentrator uses a converging optical intensity field to concentrate particulate matter along the center of a longitudinal axis of a microchannel. More specifically, the concentrator is designed to bring in ambient air containing PM through a microchannel and concentrate the PM in the center of the microchannel using a converging optical intensity field within a confocal optical cavity.

A system for generating a multi-element atom array includes a first spatial light modulator that transforms a first input laser beam into a first modulated laser beam and a second spatial light modulator that transforms a second input laser beam into a second modulated laser beam. The first input laser beam has a first wavelength while the second input laser beam has a second wavelength different from the first wavelength. The system includes a beam combiner that combines the first and second modulated laser beams into a combined laser beam. The system includes a lens that focuses the combined laser beam. The first spatial-light modulator is controlled to generate a first array of optical tweezers at the first wavelength for trapping a first atomic element. The second spatial-light modulator is controlled to generate a second array of optical tweezers at the second wavelength for trapping a second atomic element.

Atomic object confinement apparatuses that include RF interior electrodes and systems including atomic object confinement apparatuses that include RF interior electrodes are provided. An example atomic object confinement apparatus comprises RF rail electrodes and a plurality of RF interior electrodes. The RF rail electrodes form a periodic array of confinement segments within a central zone of the atomic object confinement apparatus and the each of the RF interior electrodes are disposed in a respective one of the confinement segments. The RF rail electrodes and the RF interior electrodes are configured to generate a substantially periodic array of trapping regions when an oscillating voltage signal is applied to the RF rail electrodes and the RF interior electrodes.

A loading assembly configured for providing atomic objects to an atomic object confinement apparatus is provided. The loading assembly comprises one or more ovens. Each oven (a) comprises a respective oven nozzle and (b) is configured to generate a respective atomic flux of a respective atomic species via the respective oven nozzle. The loading assembly comprises a mirror array and a magnet array configured to, when optical beams are provided to the mirror and magnet assembly, generate a two-dimensional magneto-optical trap (2D MOT). The 2D MOT is configured to generate a substantially collimated atomic beam from the respective atomic fluxes generated by the one or more ovens. The loading assembly further comprises a differential pumping tube defining a beam path. The differential pumping tube is configured to provide the substantially collimated atomic beam via the beam path. The respective oven nozzle of each of the one or more ovens is misaligned with the beam path and the 2D MOT is configured to provide the substantially collimated atomic beam in alignment with the beam path.

A quantum computing system, method and computer readable medium involve a vacuum chamber, an atom source input associated with the vacuum chamber, a Photonic Integrated Circuit (PIC) having an interaction region configured to interact with an atom from the atom source, a coupling location for atom positioning, a trapping laser for trapping the atom in the coupling location, an excitation laser for manipulating an electronic state or a nuclear state of the atom, a waveguide for guiding input light to the coupling location, and an output channel for directing quantum light generated at the coupling location, out of the vacuum chamber as a resource for quantum computing. The coupling location is associated with the PIC, and the interaction region of the PIC is arranged for at least partial exposure to the vacuum.

A method for preparing an entangled quantum state of an atomic ensemble is provided. The method includes loading each atom of the atomic ensemble into a respective optical trap; placing each atom of the atomic ensemble into a same first atomic quantum state by impingement of pump radiation; approaching the atoms of the atomic ensemble to within a dipole-dipole interaction length of each other; Rydberg-dressing the atomic ensemble; during the Rydberg-dressing operation, exciting the atomic ensemble with a Raman pulse tuned to stimulate a ground-state hyperfine transition from the first atomic quantum state to a second atomic quantum state; and separating the atoms of the atomic ensemble by more than a dipole-dipole interaction length.

Embodiments described herein provide for a method of launching atoms in an atom interferometer. The method includes determining a direction of the total effective acceleration force on the atoms, controlling a direction of launch of the atoms for measurement in the atom interferometer based on the direction of the total effective acceleration force, and obtaining measurements from the atoms.