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US 5,847,618 AGranted
Atomic maser with cylindrical sapphire storage bulb
AssigneeObservatoire Cantonal de Neuchatel
InventorsGiovanni Busca, Laurent-Guy Bernier, Pascal Rochat
Life of this patent
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Abstract
An atomic maser comprises a walled enclosure (76) defining a resonant cavity (4), and a storage bulb (8) for storing a medium capable of stimulated emission. The storage bulb is a sapphire cylinder (70) that is open at both ends and has two closure members (71,72) for closing the open ends. The closure members are made substantially of titanium and have a coating (73,74) of polyfluoroethene formed on their inner surfaces. At least one of the closure members (71,72) forms part of the walled enclosure.
Claims12
An atomic maser comprising:
- a walled enclosure defining a resonant cavity therein, and,
- a storage bulb for storing a medium capable of stimulated emission, said storage bulb comprising a sapphire cylinder having open first and second ends, and first and second closure members for closing said first and second ends, respectively, characterized in that said closure members are made substantially of titanium and have a coating of polyfluoroethene formed on their inner surfaces, and in that one of said closure members comprises a first part of said walled enclosure.
An atomic maser comprising:
- a walled enclosure comprising a shell with first and second end walls for closing the shell to thereby form a resonant cavity, and,
- a storage bulb for storing a medium capable of stimulated emission, said storage bulb comprising a sapphire cylinder having open first and second ends and first and second closure members for closing said first and second ends, respectively, said closure members being made substantially of titanium and having inner surfaces with a coating of polyfluoroethene formed thereon, one of said closure members comprising a first part of one of said end walls.
Dependencies are inferred from the claim text.