Ultra stable resonant cavity for gas analysis systems

Title: Ultra stable resonant cavity for gas analysis systems

Full Record
Similar

Systems and methods for detecting trace gases utilize a resonance optical cavity and a coherent light source coupled to the cavity through a cavity coupling mirror. The cavity is constructed of a material having the same or a similar coefficient of thermal expansion as the mirror elements defining the cavity. The main (bulk) cavity material may be the same as the main (bulk) material that forms the mirror elements, or it may be different. Such resonant cavity configurations provide improved accuracy and stability as compared to existing cavity configurations based upon similar principles.

Inventors:: Koulikov, Serguei

Issue Date:: 2018-06-05

OSTI Identifier:: 1456909

Assignee:: LI-COR, Inc. (Lincoln, NE) CHO

Patent Number(s):: 9,989,729

Application Number:: 14/847,977

Contract Number:: SC0009530

Resource Relation:: Patent File Date: 2015 Sep 08

Research Org:: LI-COR, Inc., Lincoln, NE (United States)

Sponsoring Org:: USDOE

Country of Publication:: United States

Language:: English

Full Text
View Full Text

Similar records in DOepatents and OSTI.GOV collections:

Resonant-cavity apparatus for cytometry or particle analysis

Patent Gourley, Paul L.

A resonant-cavity apparatus for cytometry or particle analysis. The apparatus comprises a resonant optical cavity having an analysis region within the cavity for containing one or more biological cells or dielectric particles to be analyzed. In the presence of a cell or particle, a light beam in the form of spontaneous emission or lasing is generated within the resonant optical cavity and is encoded with information about the cell or particle. An analysis means including a spectrometer and/or a pulse-height analyzer is provided within the apparatus for recovery of the information from the light beam to determine a size, shape,more »« less
Full Text Available January 1998
Stable, Ultra-Low Residence Time Partial Oxidation

Patent Schmidt, Lanny D. ; Hickman, Daniel A.

A process for the catalytic partial oxidation of methane in gas phase at very short residence time (800,000 to 12,000,000 hr.sup.-1) by contacting a gas stream containing methane and oxygen with a metal supported catalyst, such as platinum deposited on a ceramic monolith.
Full Text Available July 1997
Cavity resonance absorption in ultra-high bandwidth CRT deflection structure by a resistive load

Patent Dunham, Mark E. ; Hudson, Charles L.

An improved ultra-high bandwidth helical coil deflection structure for a hode ray tube is described comprising a first metal member having a bore therein, the metal walls of which form a first ground plane; a second metal member coaxially mounted in the bore of the first metal member and forming a second ground plane; a helical deflection coil coaxially mounted within the bore between the two ground planes; and a resistive load disposed in one end of the bore and electrically connected to the first and second ground planes, the resistive load having an impedance substantially equal to the characteristicmore »« less
Full Text Available January 1993
Resonant-cavity antenna for plasma heating

Patent Perkins, Jr., Francis W. ; Chiu, Shiu-Chu ; Parks, Paul ; Rawls, John M.

Disclosed is a resonant coil cavity wave launcher for energizing a plasma immersed in a magnetic field. Energization includes launching fast Alfven waves to excite ion cyclotron frequency resonances in the plasma. The cavity includes inductive and capacitive reactive members spaced no further than one-quarter wavelength from a first wall confinement chamber of the plasma. The cavity wave launcher is energized by connection to a waveguide or transmission line carrying forward power from a remote radio frequency energy source.
Full Text Available January 1987
Diagnostic resonant cavity for a charged particle accelerator

Patent Barov, Nikolai

Disclosed is a diagnostic resonant cavity for determining characteristics of a charged particle beam, such as an electron beam, produced in a charged particle accelerator. The cavity is based on resonant quadrupole-mode and higher order cavities. Enhanced shunt impedance in such cavities is obtained by the incorporation of a set of four or more electrically conductive rods extending inwardly from either one or both of the end walls of the cavity, so as to form capacitive gaps near the outer radius of the beam tube. For typical diagnostic cavity applications, a five-fold increase in shunt impedance can be obtained. Inmore »« less
Full Text Available October 2007