Honeywell International Inc.

Dan W Youngner

J David Zook

Lisa Lust

James F Detry

Leonard Hilton

A chip-scale atomic gyroscope and methods for sensing and measuring mechanical rotation of an object are disclosed. The chip-scale atomic gyroscope can include a vapor cell including a vapor cavity adapted to contain a vaporized source of alkali-metal atoms and noble gas atoms, a pump laser source adapted to produce a first laser beam along an optical pumping axis for optically pumping the alkali-metal atoms within the vapor cavity to an excited state, and a sense laser source adapted to produce a second laser beam along a sense axis transverse to the optical pumping axis for probing the polarization angle of the noble gas atoms within the vapor cavity. The pump and sense laser sources can each be connected to a servo mechanism, which can be configured to maintain the laser beams at a wavelength corresponding to the carrier wavelength of the alkali-metal atoms and a wavelength detuned from the carrier wavelength.

Chip scale atomic gyroscope

Described are structures useful in microelectronic or MEMS devices such as atomic clocks, sensors, and RF switches, wherein a first material is deposited onto a substrate to define a first material area of coverage and a second material is deposited over the first material area of coverage to define a second material area of coverage that includes the first material area of coverage and that additionally includes area that surrounds the first material area of coverage, such that the first material is enclosed by the second material over the entire area and past the edges of the first material.

Thin-film deposition methods and apparatuses

A frequency standard has a cell formed in a cavity of a substrate. The cell contains a metal alkali vapor. The substrate has an optical path that intersects the cell. A light source is supported by the substrate and supplies light through the first optical path to the cell, and a light detector is supported by the substrate and receives light through the second optical path from the cell. The sealed vapor-filled cell is surrounded by a vacuum cavity enclosure. Bridges between the cell and the substrate may be used to thermally isolate the cell in the cavity and allow closed loop temperature control of the cell.

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Maple Grove, MN, United States of America

Dan W Youngner