Title: Atomic magnetometer with multiple spatial channels

Abstract

An atomic magnetometer includes an atomic vapor cell, an optical system conformed to transmit pump radiation and probe radiation through the vapor cell, and an optical detection system arranged to receive and detect probe radiation after it exits the vapor cell. Improvements in the separation of spatial channels are achieved by using a a diffractive optical element arranged to divide at least the pump radiation into a plurality of separate diffracted beams that traverse the vapor cell.

Inventors:

Schwindt, Peter; Johnson, Cort N.; Jau, Yuan-Yu

Issue Date:

2018-06-12

Research Org.:

Sandia National Laboratories (SNL), Albuquerque, NM, and Livermore, CA (United States)

Sponsoring Org.:

USDOE

OSTI Identifier:

1457716

Patent Number(s):

9995800

Application Number:

14/692,936

Assignee:

National Technology & Engineering Solutions of Sandia, LLC (Albuquerque, NM)

Patent Classifications (CPCs):

G - PHYSICS G01 - MEASURING G01R - MEASURING ELECTRIC VARIABLES

G - PHYSICS G01 - MEASURING G01V - GEOPHYSICS

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G - PHYSICS G01 - MEASURING G01R - MEASURING ELECTRIC VARIABLES

G01R33/26 - using optical pumping {

G - PHYSICS G01 - MEASURING G01V - GEOPHYSICS

G01V3/40 - specially adapted for measuring magnetic field characteristics of the earth

H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01S - DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT

H01S1/06 - Gaseous {, i.e. beam masers}

H - ELECTRICITY H03 - BASIC ELECTRONIC CIRCUITRY H03L - AUTOMATIC CONTROL, STARTING, SYNCHRONISATION, OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES

H03L7/26 - using energy levels of molecules, atoms, or subatomic particles as a frequency reference

G - PHYSICS G01 - MEASURING G01V - GEOPHYSICS

G01V3/00 - Electric or magnetic prospecting or detecting

G - PHYSICS G04 - HOROLOGY G04F - TIME-INTERVAL MEASURING

G04F5/14 - using atomic clocks

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DOE Contract Number:  

AC04-94AL85000

Resource Type:

Patent

Resource Relation:

Patent File Date: 2015 Apr 22

Country of Publication:

United States

Language:

English

Subject:

47 OTHER INSTRUMENTATION