Lockheed Martin Corporation

David Nelson Coar

Jon Carmelo Russo

Gregory Scott Bruce

Wilbur Lew

Julie Lynne Miller

Laird Nicholas Egan

Jeff D Cammerata

Arul Manickam

Peter G Kaup

Bryan Neal Fisk

Stephen Michael Sekelsky

John B Stetson, Jr

Brian P Boesch

Thomas J Meyer

James Michael Krause

Emanuel Solomon Stockman

Elton Pepa

James P Mabry

Peter V Bedworth

Joseph W Hahn

Jacob Louis Swett

Steven W Sinton

Duc Huynh

Andrew Raymond Mandeville

Nicholas Mauriello Luzod

Kenneth Michael Jackson

Jay T Hansen

John B Stetson

Michael John Dimario

Joseph A Villani

Anjaney Pramod Kottapalli

Gary Edward Montgomery

Margaret Miller Shaw

Colleen Mary Reynolds

Mary Catherine Chih-Li Decristoforo

A system for magnetic detection includes a nitrogen vacancy (NV) diamond material comprising a plurality of NV centers, a radio frequency (RF) excitation source configured to provide RF excitation to the NV diamond material, an optical excitation source configured to provide optical excitation to the NV diamond material, an optical detector configured to receive an optical signal emitted by the NV diamond material, and a controller. The optical signal is based on hyperfine states of the NV diamond material. The controller is configured to detect a gradient of the optical signal based on the hyperfine states emitted by the NV diamond material.

DNV magnetic field detector

A system for magnetic detection includes a magneto-optical defect center material including at least one magneto-optical defect center that emits an optical signal when excited by an excitation light; a radio frequency (RF) exciter system configured to provide RF excitation to the magneto-optical defect center material; an optical light source configured to direct the excitation light to the magneto-optical defect center material; and an optical detector configured to receive the optical signal emitted by the magneto-optical defect center material.

Magneto-optical detecting apparatus and methods

A method for detecting a magnetic field acting on a nitrogen vacancy (NV) diamond material comprising a plurality of NV centers may include controlling an optical excitation source and an RF excitation source to apply a pulse sequence comprising two optical excitation pulses and two RF excitation pulses to the NV diamond material, receiving a light detection signal from an optical detector based on an optical signal emitted by the NV diamond material due to the pulse sequence, measuring a first value of the light detection signal at a first reference period, the first reference period being before a period of the light detection signal associated with the two RF excitation pulses provided to the NV diamond material, measuring a second value of the light detection signal at a second reference period, the second reference period being after the period of the light detection signal associated with the two RF excitation pulses provided to the NV diamond material, and computing a measurement signal based on the measured first and second values. Such method may further may further comprise measuring a third value of the light detection signal at a signal period, the signal period being after the first reference period and before the second reference period. Such method may further comprise computing the measurement signal based on a difference between the average of the first and second values and the third value.

Methods for detecting a magnetic field acting on a magneto-optical detect center having pulsed excitation

A system for magnetic anomaly detection is described. The system may include a nitrogen vacancy (NV) diamond material comprising a plurality of NV centers. A controller modulates a first code packet and controls a first magnetic field generator to apply a first time varying magnetic field at the NV diamond material based on the modulated first code packet. The controller modulates a second code packet and control a second magnetic field generator to apply a second time varying magnetic field at the NV diamond material based on the modulated second code packet, wherein the first code packet and the second code packet are binary sequences which have a low cross correlation with each other. The controller determines a magnitude and direction of the magnetic field at the NV diamond material, and determines a magnetic vector anomaly based on the determined magnitude and direction of the magnetic field.

AC vector magnetic anomaly detection with diamond nitrogen vacancies

A system includes a transmitting device and a receiving device. The transmitting device includes a first processor configured to transmit data to a transmitter and the transmitter. The transmitter is configured to transmit the data via a magnetic field. The receiving device includes a magnetometer configured to detect the magnetic field and a second processor configured to decipher the data from the detected magnetic field.

Communication via a magnio

Methods and configurations are disclosed for providing band-pass magnetic filtering of signals in magnetic communications and anomaly detection using diamond nitrogen-vacancy (DNV).

Magnetic low-pass filter

Methods and configuration are disclosed for providing higher magnetic sensitivity magnetometers through fluorescence manipulation by phonon spectrum control. A method for increasing the magnetic sensitivity for a DNV sensor may include providing a diamond having nitrogen vacancies of a DNV sensor and an acoustic driver and acoustically driving the diamond with the acoustic driver to manipulate a phonon spectrum of the DNV sensor. A DNV sensor may include a diamond having nitrogen vacancies, a photo detector configured to detect photon emissions from the diamond responsive to laser excitation of the diamond and an acoustic driver configured to manipulate a phonon spectrum for the DNV sensor by acoustically driving the diamond.

Higher magnetic sensitivity through fluorescence manipulation by phonon spectrum control

A system for magnetic detection may include a nitrogen vacancy (NV) diamond material, a radio frequency (RF) excitation source, an optical excitation source, an optical detector, a magnetic field generator, and a controller. The controller may control the excitation sources to apply a first pulse sequence. The controller may receive a first light detection signal due to the first pulse sequence, measure first and second values of the first light detection signal at first and second reference periods, and compute a first measurement. The controller may further control the excitation sources to apply a second pulse sequence, receive a second light detection signal due to the second pulse sequence, measure first and second values of the second light detection signal at first and second reference periods, and compute a second measurement. The first and second measurements may be based on high and low resonance frequencies of the NV diamond material.

Apparatus and method for high sensitivity magnetometry measurement and signal processing in a magnetic detection system

Growing community of inventors

Cherry Hill, NJ, United States of America

David Nelson Coar