S lication file f let h historv. ee appl1cauon Ille Ior complete searcn n1Story The defect
portion can affect periodicity characteristics of the (56) References Cited phononic crystal …

Methods and apparatus for sensing or measuring an electromagnetic field. The method
entails excitation into a distribution of Rydberg states of atoms of a gas occupying a test …

In a general aspect, fields of electromagnetic radiation are imaged. In some aspects, an
imaging method includes receiving electromagnetic radiation at a vapor-cell sensor. The …

(57) ABSTRACT A method for reducing or eliminating clock bias in an atomic clock is
provided. The method comprises cooling a popula tion of atoms collected in the atomic clock …

Recent advances in radio frequency microelectromechani cal systems (RF MEMS)
technologies have demonstrated on-chip integration of high-frequency signal processors …

The present invention relates to optical coupling systems that employ a multicore optical
fiber. The system can be employed with two multicore optical fibers or with a single multicore …

(57) ABSTRACT A method for measuring the population of atoms in a vapor cell comprises
collecting a sample of atoms, applying radio frequency (RF) spectroscopy to the sample …

A package-level, integrated high-vacuum ion-chip enclosure having improved thermal
characteristics is disclosed. Enclosures in accordance with the present invention include first …

In a general aspect, vapor cells are disclosed that include a dielectric body having a first
surface and a second surface. The dielectric body includes a plurality of cavities extending …

Vapor cells are disclosed that include a dielectric body having a first surface and a second
surface. The dielectric body includes a plurality of walls extending from the first surface to the …