Aosense, Inc.

Matthew Todd Cashen

Mark A Kasevich

Miroslav Y Shverdin

Micah Ledbetter

Michael R Matthews

Arman Cingoz

Alexander F Sugarbaker

Christopher Jekeli

Miao Zhu

Adam T Black

Thomas H Loftus

Martin M Boyd

Igor Teper

Akash Rakholia

A system for atom interferometry includes one or more lasers disposed to 1) generate a first pair of beams that are initially spatially separated and later overlapped to follow a common path to intersecting an atomic cloud interaction region, wherein the first beam of the pair of beams acts as a first MOT beam and the second beam of the pair of beams acts as a first Raman beam; and 2) generate an additional beam, wherein the additional beam is multiplexed to be used alternately as a second MOT beam and as a second Raman beam, wherein the additional beam follows an opposing path to the common path when intersecting the atomic cloud interaction region.

Laser architecture for component efficient atomic interferometer gravimeter

An inertial navigation system (INS) device includes three or more atomic interferometer inertial sensors, three or more atomic interferometer gravity gradiometers, and a processor. Three or more atomic interferometer inertial sensors obtain raw inertial measurements for three or more components of linear acceleration and three or more components of rotation. Three or more atomic interferometer gravity gradiometers obtain raw measurements for three or more components of the gravity gradient tensor. The processor is configured to determine position using the raw inertial measurements and the raw gravity gradient measurements.

Inertial navigation system design for precision mobile reference platforms

A high bandwidth gravimeter or accelerometer includes laser(s), modulator(s), and an atomic interferometer. The laser(s) and modulator(s) produce four laser frequencies. A first and second pair of laser frequencies are each separated by w. The first and second pair are offset by w. A first laser frequency of the first pair and a second laser frequency of the second pair are separated by w+w. A second laser frequency of the first pair and a first laser frequency of the second pair are separated by w&#x2212;w. The first pair is routed to arrive from a first direction at atoms in an interaction region, and the second pair from a second direction. The first pair are phase stable with respect to the second pair. wis adjusted so that w+wor w&#x2212;wcorresponds to a Raman resonance for the atomic interferometer.

High-bandwidth atom-interferometric gravimetry and accelerometry

A device for magnetic field generation includes a flux deliverer and a field shaper.

Magnetic field generators based on high magnetic permeability materials

An atom interferometer device for inertial sensing includes one or more thermal atomic sources, a state preparation laser, a set of lasers, and a detection laser. The one or more thermal atomic sources provide one or more atomic beams. A state preparation laser is disposed to provide a state preparation laser beam nominally perpendicular to each of the one or more atomic beams. A set of lasers is disposed to provide interrogation laser beams that interrogate the one or more atomic beams to assist in generating atom interference. A detection laser is disposed to provide a detection laser beam, which is angled at a first angle to the each of the one or more atomic beams in order to enhance the dynamic range of the device by enabling velocity selectivity of atoms used in detecting the atom interference.

Velocity selective thermal atomic beam inertial sensor

Growing community of inventors

Gilroy, CA, United States of America

Matthew Todd Cashen