Patents Assigned to TWINLEAF LLC
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Patent number: 10955495Abstract: Magnetometers, atomic sensors and related systems, methods and devices are disclosed. The magnetometer includes an alkali vapor cell and illumination source configured to emit light and a detector that receives the light and a heating element. The magnetometer also includes a folded baseplate such that light emitted from the illumination source is directed to the alkali vapor cell, and light emerging from the alkali vapor cell is directed to the light detector.Type: GrantFiled: October 22, 2018Date of Patent: March 23, 2021Assignee: Twinleaf LLCInventors: Elizabeth L. Foley, Thomas W. Kornack
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Patent number: 10107877Abstract: Magnetometers, atomic sensors and related systems, methods and devices are disclosed. In one configuration, an assembly for use in a high-sensitivity atomic sensor can include an alkali vapor cell, at least one illumination source configured to emit light when activated, the emitted light having a first predetermined range of wavelengths, a light collector capable of collecting light in the first predetermined range of wavelengths, and a plurality of optical elements arranged such that (a) light emitted from the at least one illumination source is directed to the alkali vapor cell, and (b) light emerging from the alkali vapor cell is directed to the light collector.Type: GrantFiled: March 28, 2017Date of Patent: October 23, 2018Assignee: Twinleaf LLCInventors: Elizabeth L. Foley, Thomas W. Kornack
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Patent number: 9915711Abstract: A compact, high-sensitivity magnetometer, including: an optical interface to accept a linearly polarized first light; a pump light source to produce a circularly polarized pump light; a vapor cell having a sealed vessel containing an alkali-metal gas, a first input port to receive the first light, a second input port to accept the pump light from a direction perpendicular to the first light, and an output port to produce a second light; an electromagnetic source to apply a modulated electromagnetic field to the vapor cell at a direction perpendicular to the first light and the pump light, without using a modulator external to the vapor cell; a second linear polarizer, polarized perpendicular to the first light, the second polarizer to receive the second light and to produce a third light; and a photodetector to receive the third light, to produce an intensity measurement of the third light.Type: GrantFiled: February 20, 2017Date of Patent: March 13, 2018Assignee: TWINLEAF LLCInventors: Thomas Whitmore Kornack, Elizabeth Lee Foley
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Patent number: 9638768Abstract: Magnetometers, atomic sensors and related systems, methods and devices are disclosed. In one configuration, an assembly for use in a high-sensitivity atomic sensor can include an alkali vapor cell, at least one illumination source configured to emit light when activated, the emitted light having a first predetermined range of wavelengths, a light collector capable of collecting light in the first predetermined range of wavelengths, and a plurality of optical elements arranged such that (a) light emitted from the at least one illumination source is directed to the alkali vapor cell, and (b) light emerging from the alkali vapor cell is directed to the light collector.Type: GrantFiled: February 5, 2016Date of Patent: May 2, 2017Assignee: TWINLEAF LLCInventors: Elizabeth L. Foley, Thomas W. Kornack
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Patent number: 9575144Abstract: A compact, high-sensitivity magnetometer, including: an optical interface to accept a linearly polarized first light; a pump light source to produce a circularly polarized pump light; a vapor cell comprising a sealed vessel containing an alkali-metal gas, a first input port to receive the first light, a second input port to accept the pump light from a direction perpendicular to the first light, and an output port configured to produce a second light; an electromagnetic source configured to apply an electromagnetic field to the vapor cell at a direction perpendicular to the first light and the pump light; a second linear polarizer, having an axis of polarization perpendicular to the first light, the second polarizer configured to receive the second light and to produce a third light; and a photodetector configured to receive the third light, to produce an intensity measurement of the third light.Type: GrantFiled: October 15, 2013Date of Patent: February 21, 2017Assignee: TWINLEAF LLCInventors: Thomas Whitmore Kornack, Elizabeth Lee Foley
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Publication number: 20160231395Abstract: Magnetometers, atomic sensors and related systems, methods and devices are disclosed.Type: ApplicationFiled: February 5, 2016Publication date: August 11, 2016Applicant: Twinleaf LLCInventors: Elizabeth L. Foley, Thomas W. Kornack
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Publication number: 20140247045Abstract: A compact, high-sensitivity magnetometer, including: an optical interface to accept a linearly polarized first light; a pump light source to produce a circularly polarized pump light; a vapor cell comprising a sealed vessel containing an alkali-metal gas, a first input port to receive the first light, a second input port to accept the pump light from a direction perpendicular to the first light, and an output port configured to produce a second light; an electromagnetic source configured to apply an electromagnetic field to the vapor cell at a direction perpendicular to the first light and the pump light; a second linear polarizer, having an axis of polarization perpendicular to the first light, the second polarizer configured to receive the second light and to produce a third light; and a photodetector configured to receive the third light, to produce an intensity measurement of the third light.Type: ApplicationFiled: October 15, 2013Publication date: September 4, 2014Applicant: TWINLEAF LLCInventors: Thomas Whitmore Kornack, Elizabeth Lee Foley