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US 11,307,268 B2Granted
Covalently-bound anti-relaxation surface coatings and application in magnetometers
AssigneeHi LLC
InventorsSukanta Bhattacharyya, Daniel Sobek
Life of this patent
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Abstract
A magnetometer includes a vapor cell having at least one wall, a chamber defined by the at least one wall, and alkali metal atoms disposed in the chamber to produce an alkali metal vapor in the chamber, wherein the at least one wall includes an oxide-containing interior surface; and an anti-relaxation coating disposed on the oxide-containing interior surface of the at least one wall of the vapor cell, wherein the anti-relaxation coating is a reaction product of the oxide-containing interior surface of the at least one wall with at least one mono- or dichlorosilane compound.
Claims20
A magnetometer, comprising:
- a vapor cell comprising at least one wall, a chamber defined by the at least one wall, and alkali metal atoms disposed in the chamber to produce an alkali metal vapor in the chamber, wherein the at least one wall comprises an oxide-containing interior surface;
- and
- an anti-relaxation coating disposed on the oxide-containing interior surface of the at least one wall of the vapor cell, wherein the anti-relaxation coating is a reaction product of the oxide-containing interior surface of the at least one wall with at least one mono- or dichlorosilane compound selected from:
- wherein x, y, and z, when present, are each independently an integer in a range of 0 to 40.
1 more element
Dependencies are inferred from the claim text.