Alkali metal-wax micropackets for alkali metal handling

Details Alkali metal-wax micropackets for alkali metal handling Alkali metal-wax micropackets for alkali metal handling

2006-06-06

2010-02-23

Mis, David (Department: 2817)

Stock material or miscellaneous articles

Hollow or container type article

C428S044000, C428S046000, C428S542800, C331S094100, C372S055000

Reexamination Certificate

active

07666485

ABSTRACT:
A method of making alkali-metal vapor cells by first forming microscale-wax micropackets with alkali metals inside allows fabrication of vapor cells at low cost and in a batch fabricated manner. Alkali metals are enclosed in a chemically inert wax to preform alkali metal-wax micropackets, keeping the alkali metals from reacting with the ambient surroundings during the vapor cell fabrication. This enables the deposition of precise amounts of pure alkali metal inside the vapor cells. Laser ablation of the alkali metal-wax micropackets provides a simple and effective way of releasing the enclosed metal. The method reduces the cost of making chip-scale atomic clocks and allows shipping of alkali vapor packets without contamination issues, thereby creating a technology for alkali-metal vendors to provide small packets of alkali metals.

REFERENCES:
patent: 6255647 (2001-07-01), Vanier et al.

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