Analytes monitoring by differential swept wavelength absorption spectroscopy methods

Gas cell assembly and applications in absorption spectroscopy

Ultra stable resonant cavity for gas analysis systems

System and method for dissolved gas analysis

Device and method for in vivo flow cytometry using the detection of photoacoustic waves

Apparatus and method for measuring the concentration of trace gases by SCAR spectroscopy

Absorption spectrometer and method for measuring the concentration of a gaseous component of interest in a measurement gas

Alignment device and transmitter/receiver system with two angular degrees of freedom

Resonant optical transducers for in-situ gas detection

Spectroscopic quantification of extremely rare molecular species in the presence of interfering optical absorption

Collisional broadening compensation using real or near-real time validation in spectroscopic analyzers

Non-Condensing Gas Sampling Probe System

Laser illuminated gas imaging device for determining inoperable gas detection pixels

Optical sensing array architectures for spatial profiling

Single molecule spectroscopy using photothermal tuning of optical microcavities

Frequency comb spectroscopy apparatus and method of frequency comb spectroscopy

Open path gas detector

On-board diesel emissions diagnostic and monitoring system

Gas absorption spectroscopic system and gas absorption spectroscopic method

Spectral imaging of a sample using a plurality of discrete mid-infrared wavelengths

Spectroscopy system using waveguide and employing a laser medium as its own emissions detector

PHOTOTHERMAL RESONANCE

Optically transparent films for measuring optically thick fluids

Attachment and alignment device for optical sources, detectors and analysers, and modular analysis system

Tuning System for a Tuneable Diode Laser Spectroscopy Device comprising a Thermo Electric Cooler and a further Cooler

SMOKE CONCENTRATION MEASUREMENT SYSTEM AND RELATED METHODS

Cavity enhanced laser based isotopic gas analyzer

Motion modulation fluidic analyzer system

Fluid analyzer with modulation for liquids and gases

METHOD AND APPARATUS FOR TWO POINT CALIBRATION OF A TUNABLE DIODE LASER ANALYZER

MERCURY VAPOR TRACE DETECTION USING PRE-EXCITATION CAVITY RING DOWN SPECTROSCOPY

Laser-type gas analyzer

Method and system for correcting incident light fluctuations in absorption spectroscopy

Laser gas analyzer

Apparatus and method for automated process monitoring and control with near infrared spectroscopy

Methods for Continuous Monitoring and Control of Bioprocesses

Spectrographic system utilizing a chirped, pulsed optical source

Multiplexed spectroscopic absorbance from CRDS wave forms

Method and apparatus for external cavity laser absorption spectroscopy

Oxygen analysis system and method for measuring, monitoring and recording oxygen concentration in aircraft fuel tanks

Laser Based, Temperature Insensitive, Carbon Dioxide Isotope Ratio Measurement

Diagnostic method for high sensitivity detection of component concentrations in human gas emission

Method for measuring the concentration of a gas component in a measuring gas

LASER GAS ANALYZER

Method and system for detecting moisture in a process gas involving cross interference

Use of one or more retro-reflectors in a gas analyzer system

Variable-frequency optical combs, heterodyne sensor, and process for performing spectroscopy

Method for measuring temperature, molecular number density, and/or pressure of a gaseous compound from a thermal device, and a thermal system

Cavity enhanced laser based gas analyzer systems and methods

Measurement of gaseous compound using spectroscopy

Cavity ring-down spectroscopic system and method

In-furnace retro-reflectors with steerable tunable diode laser absorption spectrometer

Method and gas analyzer for measuring the concentration of a gas component in a sample gas

Laser source with a large spectral range

GASEOUS CONCENTRATION MEASUREMENT APPARATUS

Laser spectrometer and method for measuring concentration of a gas component in a measurement gas

SENSOR SYSTEM FOR DETECTING FUGITIVE GAS

Mid-IR multiwavelength concatenated distributed-feedback laser with an active core made of cascaded stages

Methods for gas leak detection and localization in populated areas using isotope ratio measurements

Spectroscopic means and methods for identifying microorganisms in culture

Integrated optical system and components utilizing tunable optical sources and coherent detection and phased array for imaging, ranging, sensing, communications and other applications

Tunable diode laser absorption spectroscopy with water vapor determination

Alignment system for laser spectroscopy

Laser spectrometer and a method for operating a laser spectrometer

Method for the laser spectroscopy of gases

Method for calibration-free scanned-wavelength modulation spectroscopy for gas sensing

Laser based system for bitumen content determination, E.G., using discrete wavelength spectroscopic analysis

Long-path infrared spectrometer

Gas analyser

Dynamic reconstruction of a calibration state of an absorption spectrometer

Optical resonator for sensor arrangement and measuring method

Method and arrangement for actuating a wavelength-tunable laser diode in a spectrometer

Chemical detection and laser wavelength stabilization employing spectroscopic absorption via laser compliance voltage sensing

Capillary absorption spectrometer and process for isotopic analysis of small samples

Gas chromatograph having an absorption spectrometer and method for analyzing a gas mixture via gas chromatography

Diagnostic method for high sensitivity detection of component concentrations in human gas emissions

Miniature tunable laser spectrometer for detection of a trace gas

Cavity enhanced laser based isotopic gas analyzer

Method for measuring concentration of a gas component in a measurement gas

Multi-band multiplexing intra-cavity gas sensing system and method

System of systems for monitoring greenhouse gas fluxes

High precision locked laser operating at elevated temperatures

Cavity enhanced laser based gas analyzer systems and methods

Gas analyzer

Method of detecting molecules and optical sensor

Apparatus and system for determining, optimizing or monitoring at least one process variable

Method of measuring vapor flux density

Method and device for measuring gas component concentration inside a glass unit

Tunable light source system and method having wavelength reference capability

Multi-harmonic inline reference cell for optical trace gas sensing

Method and apparatus for analyzing, identifying or imaging a target

Methods for gas leak detection and localization in populated areas using multi-point analysis

Resonant optical transducers for in-situ gas detection

Methods for gas leak detection and localization in populated areas using isotope ratio measurements

Gas analyzer

Terahertz frequency domain spectrometer with heterodyne downconversion

Method and system for real-time, non-invasive monitoring of a biological material in a sealed container

Gas analysis device

Extractive continuous ammonia monitoring system

Digital light processing hyperspectral imaging apparatus and method

Digital light processing hyperspectral imaging apparatus and method

Microfluidics system for sequencing

Collisional broadening compensation using real or near-real time validation in spectroscopic analyzers

Gas detector

Chemical detection and laser wavelength stabilization employing spectroscopic absorption via laser compliance voltage sensing

Methods for determining optical power, for power-normalizing laser measurements, and for stabilizing power of lasers via compliance voltage sensing

Composite Fabry-Pérot sensor

Method for measuring the concentration of at least one gas component in a measuring gas

Optical signal processing method and apparatus for analysing time-decay signals

Laser gas analyzer

System and apparatus for monitoring concentration of greenhouse gas

Systems and methods for frequency-domain photoacoustic phased array imaging

Controlling transfer of objects affecting optical characteristics

Laser based cavity enhanced optical absorption gas analyzer with laser feedback optimization

Method and apparatus for estimating a downhole fluid property using a miniature integrated circuit spectrometer

Device and method for in vivo flow cytometry using the detection of photoacoustic waves

Humidity and temperature corrections to improve accuracy of HF ambient air monitors based on tunable diode laser IR absorption measurements

Time-synchronized TDLAS measurements of pressure and temperature in a gas turbine engine

Laser based cavity enhanced optical absorption gas analyzer

Optical component

Method and system for detecting moisture in natural gas

Semiconductor laser mounting with intact diffusion barrier layer

Cavity enhanced laser based isotopic gas analyzer

Triple isotope method and analyzer for total energy expenditure measurements

Luminous unit

Laser gas analysis apparatus

Terahertz frequency domain spectrometer with phase modulation of source laser beam

Methods for measuring renewable bio-source content in renewable bioplastic materials

Sample preparation for isotopic analysis without an oxidizer

Auto-aligning spectroscopy system

Heterodyne off-axis integrated cavity output spectroscopy

Laser Based, Temperature Insensitive, Carbon Dioxide Isotope Ratio Measurement

High-accuracy mid-IR laser-based gas sensor

Method and apparatus for detecting a gas concentration with reduced pressure dependency

PROCESS AND MEASURING EQUIPMENT FOR IMPROVING THE SIGNAL RESOLUTION IN GAS ABSORPTION SPECTROSCOPY

Actuation and evaluation circuit, measuring device and method for measuring the concentration of a gas

Semiconductor laser mounting for improved frequency stability

High-purity fluorine gas, the production and use thereof, and a method for monitoring impurities in a fluorine gas

APPARATUS AND METHOD FOR CHEMICAL, BIOLOGICAL AND RADIOLOGICAL AGENT SENSING

GAS DETECTION DEVICE

Imaging device and method for optoacoustic imaging of small animals

Laser gas analyzer

Widely-tunable semiconductor source integrated in windowed hermetic package

Method and apparatus for measuring molecular composition

Gas Concentration Measurement Device

Gas concentration measurement device

Manual and automatic probe calibration

Gas detector for atmospheric species detection

Optical sensor and method for detecting molecules

Semiconductor laser with absorber applied to a laser mirror

Sensitive and Compact Sensor Employing a Visible Diode Laser and A High Finesse Optical Cavity for Trace Gas Detection (NO2)

System and method for real-time measurement of equivalence ratio of gas fuel mixture

Remote optothermal sensor (ROSE) standoff detection of CWAs, explosives vapors and TICs

Mitigation of optical signal noise using a multimode transmit fiber

Method of analyzing and controlling a combustion process in a gas turbine and apparatus for performing the method

SYSTEM AND METHOD FOR DETECTING EXPLOSIVE AGENTS USING SWIR, MWIR, AND LWIR HYPERSPECTRAL IMAGING

Method and apparatus for trace gas detection using integrated wavelength modulated spectra across multiple lines

DEVICE AND METHOD FOR DETERMINING OPTICAL PATH LENGTHS

Dynamic reconstruction of a calibration state of an absorption spectrometer

Non-contact surface chemistry measurement apparatus and method

Biosensors based on optical probing and sensing

Integrated embedded processor based laser spectroscopic sensor

Continuous wavelength tunable laser source with optimum orientation of grating and gain medium

Energy meter for mixed streams of combustible compounds

Systems and methods for permeability rate testing of barrier films

Method and apparatus for the detection of trace gas species using multiple line integrated absorption spectroscopy

Measuring Instrument for Determining the Tissue Alcohol Concentration

METHOD AND SYSTEM FOR THE MEASUREMENT/DETECTION OF CHEMICAL SPILLAGE

BIOLOGICAL INFORMATION MEASURING APPARATUS

QCL spectroscopy system and applications therefor

METHOD AND DEVICE FOR CONTROLLING OR MONITORING FIRING SYSTEMS AND FOR MONITORING BUILDINGS HAVING GAS BURNERS

DETECTION AND IDENTIFICATION OF SOLID MATTER

Energy flow measurement in gas pipelines

Photonic crystal sensor

Method and system for non-mechanical rapid tuning of an optical parametric oscillator

Beam intensity detection in a cavity ring down sensor

Multiple wavelength cavity ring down gas sensor

METHOD AND APPARATUS FOR SPECIATING HYDROCARBONS

Method and apparatus for liberating gases from drilling fluid

Gas sensor and process for measuring moisture and carbon dioxide concentration

Apparatus for measurement of gas concentrations in breath

Method and apparatus for monitoring combustion properties in an interior of a boiler

Validation and correction of spectrometer performance using a validation cell

Spectrometer with validation cell

Systems and methods for detecting contaminants

Adsorptive gas analyzer

Cavity enhanced trace gas detection gradiometer

Ultrasensitive detection of isotopes, chemical substances and biological substances using laser wave mixing detectors

Method and apparatus for determining gas flux

Measurement device and method for analyzing a sample gas by infrared absorption spectroscopy

SYSTEM AND METHOD FOR DETECTING EXPLOSIVES USING SWIR AND MWIR HYPERSPECTRAL IMAGING

Methods and apparatus to obtain suspended particle information

Spectral imaging of moving objects with a stare down camera

Method and apparatus for locking a laser with a resonant cavity

Method and apparatus for the photo-acoustic identification and quantification of analyte species in a gaseous or liquid medium

Method and apparatus for the photo-acoustic identification and quantification of analyte species in a gaseous or liquid medium

Method and apparatus for the photo-acoustic identification and quantification of analyte species in a gaseous or liquid medium

Light-shielding film for optical element and optical element having light-shielding film

System and method for fluid sample analysis having a laser with a port for controlling access to an extended cavity

PARTICLE DETECTOR

GAS DETECTION DEVICE

Method for detection of gases by laser spectroscopy, and gas sensor

Broadly tunable optical parametric oscillator

Flux monitor

Systems and apparatus relating to the monitoring and/or controlling of selective catalytic reduction processes

NON-INTRUSIVE METHOD FOR SENSING GAS TEMPERATURE AND SPECIES CONCENTRATION IN GASEOUS ENVIRONMENTS

Gas mixture measurement system and methods therefor

Device and method of examining absorption of infrared radiation

Laser diode structure with integrated temperature-controlled beam shaping element and method for gas detection by means of a laser diode structure

Method of determining glucose concentration of a whole blood sample

METHOD AND DEVICE FOR GAS ANALYSIS USING AN INTERFEROMETRIC LASER

STAND-OFF ACTIVE DETECTION OF CHEMICAL SUBSTANCES

Spectroscopy method and spectroscope

Excess Air Control For Cracker Furnace Burners

Tag free bio sensing micro strip

Optical absorbance measurements with self-calibration and extended dynamic range

PHOTONIC CRYSTAL FIBER SENSOR

Spectroscopic detection system and method

Terahertz frequency domain spectrometer with frequency shifting of source laser beam

Detection and identification of solid matter

METHOD AND SYSTEM FOR MEASURING AND DETERMINING/IDENTIFYING DIFFERENT MATERIALS

Photonic crystal fiber sensor

Method for determining an analyte concentration in a fluid

Cavity enhanced trace gas detection gradiometer

Apparatus and methods relating to enhanced spectral measurement systems

Mid-IR laser instrument for analyzing a gaseous sample and method for using the same

WAVELENGTH MODULATION SPECTROSCOPY FOR SIMULTANEOUS MEASUREMENT OF TWO OR MORE GAS INGREDIENTS

Binning and tomography for high spatial resolution temperature and species concentration measurements

Methods, systems and computer program products for characterizing structures based on interferometric phase data

System of systems for monitoring greenhouse gas fluxes

Multiple beam wide band CRDS cavity sensor and detector

Integrated embedded processor based laser spectroscopic sensor

Analytical equipment enclosure incorporating phase changing materials

Airborne tunable mid-IR laser gas-correlation sensor

Device for quantifying the contents of at least one gaseous constituent contained in a gaseous sample from a fluid, related assembly and process

METHOD AND DEVICE FOR MONITORING A COMBUSTION PROCESS

Detection method

MEASURING OF FUEL COMPOSITION BY USING LASER

Gas detector

Energy flow measurement in gas pipelines

Multi-channel swept wavelength optical interrogation system and method for using same

Wavelength-modulation spectroscopy method and apparatus

LITHOGRAPHIC APPARATUS AND HUMIDITY MEASUREMENT SYSTEM

Method for the automated measurement of gas pressure and concentration inside sealed containers

Digital light processing hyperspectral imaging apparatus

Analysis using separation combined with chemical conversion followed by optical spectroscopy

Methods and apparatus for decreasing a density of a downhole fluid

MEASURING DEVICE AND METHOD FOR OPTICALLY DETERMINING THE CONCENTRATION OF BLOOD SUGAR AND/OR LACTATE IN BIOLOGICAL SYSTEMS

Control and optimization of process for making ethylene oxide

Combustion gas analysis

DISTRIBUTED GAS DETECTION

Compact near-IR and mid-IR cavity ring down spectroscopy device

METHOD OF MONITORING PRESSURE OF A GAS SPECIES AND APPARATUS TO DO SO

LASER DIODE ARRANGEMENTS AND METHOD FOR GAS DETECTION

Apparatus and method for rapid and accurate quantification of an unknown, complex mix

CRDS BREWSTER GAS CELL

Tunable photonic cavities for in-situ spectroscopic trace gas detection

LIGHT SOURCE AND GAS MEASURING DEVICE

Modulation cancellation method in laser spectroscopy

Inspection system and method

Apparatus and method for monitoring of gas having stable isotopes

Manual and automatic probe calibration

Detection of biochemical interactions on a biosensor using tunable filters and tunable lasers

Optical gas detection

Optical interrogation system and method for using same

Spectroscopic analysis and control

Wavelength modulation spectroscopy method and system

Cavity ring down system having a common input/output port

Multi-color cavity ringdown based detection method and apparatus

FLUORESCENCE-LIFETIME-BASED TOMOGRAPHY

DEVICE AND METHOD FOR IN VIVO FLOW CYTOMETRY USING THE DETECTION OF PHOTOACOUSTIC WAVES

Controlling transfer of objects affecting optical characteristics

Detector/imager

Sensor device and for determining a physical value

Spectroscopy method and spectroscope

Tunable semiconductor laser device, manufacturing method therefor, and gas detector using therewith

Method and Apparatus for Sensing a Target Substance by Analysing Time Series of Said Target Substance

Method and apparatus for enhancing the accuracy of CRDS measurements

Hollow waveguide cavity ringdown spectroscopy

Method of monitoring pressure of a gas species and apparatus to do so

Optical interrogation system and method for using same

Energy meter for mixed streams of combustible compounds

Optical cavity system having an orthogonal input

Infrared spectrometer

Modulated reflectance measurement system with multiple wavelengths

Method for measuring the concentration of a gas component in a measuring gas

Energy flow measurement in gas pipelines

All-Fiber Architecture for an Embedded Flight Sensor for Aeropropulsion Applications

Dynamic laser power control for gas species monitoring

Airborne tunable mid-IR laser gas-correlation sensor

CRDS mirror for normal incidence fiber optic coupling

Laser Radiation Source

Methods, arrangements and apparatus for utilizing a wavelength-swept laser using angular scanning and dispersion procedures

Pressure-invariant trace gas detection

Device for and Method of Measurement of Chemical Agents Quantity in Gas Medium

Mobile remote detection of fluids by a laser

Tunable laser-based spectroscopy system for non-invasively measuring body water content

Method of acquiring information with a microcavity laser

Apparatus and method for resonant chemical and biological sensing

System and method for remote, free-space optical detection of potential threat agent