Patent · US Expired

Atomic maser with cylindrical sapphire storage bulb

US5847618A · kind A · utility

1Cited by
3References
12Claims
0Family size

Assignee

Inventors

Key dates

Filing dateSep 19, 1996
Grant dateDec 8, 1998
Priority date
Expiry dateSep 19, 2016

Classification

  • Technology area (CPC H)Electricity
  • CPC primaryH03L7/26
  • WIPO fieldMeasurement
  • WIPO sectorInstruments

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.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.