Patent · US Active

Apparatuses and methods for alkali spectroscopy

US10823668B2 · kind B2 · utility

2Cited by

4References

10Claims

0Family size

Assignee

HONEYWELL INTERNATIONAL INC. · US

Inventors

Karl D. Nelson · Plymouth, US
Matthew Wade Puckett · Scottsdale, US
Neil A. Krueger · Saint Paul, US

Key dates

Filing date	Apr 24, 2018
Grant date	Nov 3, 2020
Priority date	—
Expiry date	Jan 29, 2039

Classification

Technology area (CPC G)Physics
CPC primaryG01N2021/3107
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

An apparatus is provided. The apparatus comprises a substrate; a low index of refraction region in or on the substrate; an optical waveguide; a cover; wherein at least a portion of the low index of refraction region and the optical waveguide are hermetically sealed under the cover; a chamber formed by the low index of refraction region and the cover; atoms; an environment, in the chamber, including the atoms and having a first index of refraction; a segment of the optical waveguide formed over the low index of refraction region and within the chamber; and wherein the segment has a second index of refraction which is substantially equal to the first index of refraction.

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