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US 9,429,918 B2Granted
Atomic clocks and magnetometers with vapor cells having condensation sites in fluid communication with a cavity to hold a vapor condensation away from an optical path
AssigneeTexas Instruments Incorporated
InventorsRoozbeh Parsa, Peter J. Hopper
Life of this patent
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Abstract
A vapor cell for installation in an atomic clock or a magnetometer. The vapor cell includes a top plate, a center plate, and a bottom plate defining a cavity for passing light along an optical path. The vapor cell includes one or more condensation sites to trap condensed vapor in order to avoid blockage of the optical path.
Claims20
An atomic clock, comprising:
- a vapor cell structure including:
- a bottom transparent plate;
- a top transparent plate opposing the bottom transparent plate;
- and
- a center plate positioned between the top and bottom transparent plates, the center plate defining a central interior aperture to form a cavity upon being attached to the top and bottom transparent plates, the center plate defining a condensation site with the top transparent plate, the condensation site in fluid communication with the cavity and positioned to hold a vapor condensation away from an optical path extending across the top and bottom transparent plates and through the central interior aperture.
2 more elements
A magnetometer, comprising:
- a vapor cell structure including:
- a bottom transparent plate;
- a top transparent plate opposing the bottom transparent plate;
- and
- a center plate positioned between the top and bottom transparent plates, the center plate defining a central interior aperture to form a cavity upon being attached to the top and bottom transparent plates, the center plate defining a condensation site with the top transparent plate, the condensation site in fluid communication with the cavity and positioned to hold a vapor condensation away from an optical path extending across the top and bottom transparent plates and through the central interior aperture.
2 more elements
Dependencies are inferred from the claim text.