公开(公告)号：US20230392928A1

公开(公告)日：2023-12-07

申请号：US17487539

申请日：2021-09-28

Applicant: AOSense, Inc.

Inventor： Mark A. Kasevich ,  Igor Teper

IPC: G01C19/64 ,  G21K1/00

CPC classification number: G01C19/64 ,  G21K1/00

Abstract: A device comprises thermal atomic source(s), atom interference lasers, and additional laser beam(s). The thermal atomic source(s) provide atomic beam(s). The atom interference lasers are disposed to provide interrogation laser beams that interrogate the atomic beam(s) to assist in generating atom interference. The interrogation laser beams are configured so as to enable a first speed selectivity and/or angle selectivity of a set of atoms used in the atom interference by restricting the set of atoms. The additional laser beam(s) are configured in such a way that, combined with the speed and/or the angle selectivity of the atom interference lasers, achieve a second speed selectivity and/or angle selectivity of the set of atoms that contribute to a final detected interference signal by restricting the set of atoms to a second speed-angle phase space, where the first speed-angle phase space and the second speed-angle phase space intersect to enhance signal stability.

公开(公告)号：US11456086B1

公开(公告)日：2022-09-27

申请号：US17026810

申请日：2020-09-21

Applicant: AOSense, Inc.

Inventor： Miroslav Y. Shverdin ,  Matthew Todd Cashen ,  Micah P. Ledbetter ,  Martin M. Boyd ,  Michael R. Matthews ,  Alexander F. Sugarbaker ,  Adam T. Black ,  Akash Rakholia ,  Igor Teper

IPC: G21K1/00 ,  G01P15/093 ,  G01V7/04

Abstract: 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 wm. The first and second pair are offset by wshift. A first laser frequency of the first pair and a second laser frequency of the second pair are separated by wm+wshift. A second laser frequency of the first pair and a first laser frequency of the second pair are separated by wm−wshift. 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. wm is adjusted so that wm+wshift or wm−wshift corresponds to a Raman resonance for the atomic interferometer.

公开(公告)号：US20160183356A1

公开(公告)日：2016-06-23

申请号：US14551949

申请日：2014-11-24

Applicant: AOSense, Inc.

Inventor： Thomas H. Loftus ,  Artyom Vitouchkine ,  Michael R. Matthews ,  Adam T. Black ,  Igor Teper ,  Leo W. Hollberg ,  Todd L. Gustavson ,  Brent C. Young

IPC: H05H3/02

CPC classification number: H05H3/02 ,  G02B21/32 ,  G21K1/00 ,  G21K1/003 ,  G21K1/006 ,  H05H3/04

Abstract: The device for producing laser-cooled atoms comprises a two dimensional trap or a three-dimensional trap, or a combination of two- and three-dimensional traps. The two-dimensional trap comprises: three or more permanent magnets arranged around a perimeter of a loop, wherein a plane of the loop is perpendicular to a free axis of the two-dimensional atom trap, and the three or more permanent magnets bracket an internal volume of the two-dimensional atom trap; and one or more laser beam input ports enabling access for one or more laser beams to the internal volume of the two-dimensional atom trap.

Abstract translation: 用于生产激光冷却原子的装置包括二维阱或三维阱，或二维和三维陷阱的组合。 二维捕获器包括：围绕环的周边布置的三个或更多个永磁体，其中环的平面垂直于二维原子阱的自由轴，并且三个或更多个永磁体支架内部 体积的二维原子阱; 以及一个或多个激光束输入端口，其使得能够访问一个或多个激光束到二维原子阱的内部体积。