Two line gas spectroscopy calibration

Biological Agent Signature Detector With an Optical Fiber Cladding Combined With a Bio-Indicator

Gas sensor

Transmission spectroscopy system for use in the determination of analytes in body fluid

Infrared Laser Based Alarm

Photo-acoustic spectrometer apparatus

Obtaining information from optical cavity output light

Encoding optical cavity output light

Distinguishing objects

Background compensation by multiple-peak measurements for absorption spectroscopy-based gas sensing

Laser diode array downhole spectrometer

Spectroscopy method and apparatus for detecting low concentration gases

Broadly tunable single-mode quantum cascade laser sources and sensors

Method and apparatus for reducing fringe interference of light

Infrared spectrometer

Measuring water vapor in high purity gases

Fiber optic based in-situ diagnostics for PEM fuel cells

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

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

METHOD TO DETERMINE WATER CONTENT IN A SAMPLE

Detection of moisture in refrigerants

Fuel cell and product of combustion humidity sensor

Logging system and method for in-situ fluids sensing through optical fiber with attenuation compensation

System and method for high sensitivity optical detection of gases

Frequency comb cavity enhanced spectroscopy

Method for the monitoring and control of a process

SPECTROSCOPIC BREATH ANALYSIS

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

Ultra-high sensitivity NDIR gas sensors

Measuring Blood Glucose Concentration

METHOD AND APPARATUS FOR DETECTING METHANE GAS IN MINES

Method and apparatus for the monitoring and control of a process

Method and apparatus for the monitoring and control of a process

Optical mode noise averaging device

Method for Determining Clinical and/or Chemical Parameters in a Medium and Device for Carrying Out Said Method

Laser light source

Method for measurement of gas concentration with modulated light at two absorption maxima

Optical gas monitor

Measuring trace components of complex gases using gas chromatography/absorption spectrometry

Optical waveform measurement device and measurement method thereof, complex refractive index measurement device and measurement method thereof, and computer program recording medium containing the program

Method And Apparatus For The Monitoring And Control Of A Process

System and method for encoded spatio-spectral information processing

Measuring low levels of methane in carbon dioxide

Gas detection method and gas detection device

Measuring water vapor in hydrocarbons

USE OF TUNABLE DIODE LASERS FOR CONTROLLING A BRAZING PROCESSES

Cavity ring-down spectrometer having mirror isolation

System and method for high sensitivity optical detection of gases

Cavity ring-down spectrometer for semiconductor processing

Optical and laser differential absorption remote detection of TATP peroxide based explosives

Optical system including a weak lens and a beam translation plate for selectively coupling to the lowest order mode of an optical resonator

Cavity enhanced optical spectroscopy with a cavity having a predetermined deviation from a mode degeneracy condition

Method and apparatus for measuring isotopic characteristics

Fabry-perot semiconductor tunable laser

Method for detecting a gas species using a super tube waveguide

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

Laser sensor having a block ring activity

Gas detection

Multi-cavity Fabry-Perot interferometric thin-film sensor with built-in temperature compensation

System and method for chemical sensing using trace gas detection

Manual and automatic probe calibration

Method and system for nuclear substance revealing using muon detection

LASER SENSING APPARATUS AND METHOD

Apparatus and method for estimating filtrate contamination in a formation fluid

Optical tomography system

Hydrogen sensor based upon quadrupole absorption spectroscopy

Fiber optic sensing device and method of making and operating the same

Method and system for noise control in semiconductor spectroscopy system

Measurement of steam quality using multiple broadband lasers

Apparatus and method for measuring steam quality

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

Broadband laser spectroscopy

Method for controlling the forming of flat glass

Control system for a boiler

Piezo activated mode tracking system for widely tunable mode-hop-free external cavity mid-IR semiconductor lasers

System and method for detecting water vapor within natural gas

Fenceline monitoring of air contaminants

System and method for detecting water vapor within natural gas

Gas detection method and gas detection device

System and method for optoacoustic imaging

Ground surface cover type reflectivity variation correction in a differential absorption LIDAR system

Semiconductor laser-based spectrometer

Multi-line tunable laser system

Cell analysis using laser with external cavity

Apparatus and method for chemical and biological agent sensing

Modulated reflectance measurement system with multiple wavelengths

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

Method and device for comprehensive characterization and monitoring of exhaust gas and control of engines, and components for aftertreatment of exhaust gases

Post dispersion spatially filtered Raman spectrometer

Apparatus and method based on cavity ring-down spectroscopy

Method and apparatus for measuring and monitoring optical properties based on a ring-resonator

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

Method for measuring gaseous species by derivation

Method and system removing fluorescence and other slowly varying baseline in Raman spectra

Method and apparatus for trace gas detection

Sensor for detecting a target substance in a fluid

Variable-wavelength semiconductor laser and gas sensor using same

Apparatus for enhanced evanescent field exposure in an optical fiber resonator for spectroscopic detection and measurement of trace species

Method for the precise measurement of the wavelength of light

Method for enhanced evanescent field exposure in an optical fiber resonator for spectroscopic detection and measurement of trace species

Method and apparatus for optical detection for multi-phase combustion systems

Device and method for monitoring the oxygen concentration in an aircraft tank

Tunable laser-based process monitoring apparatus

Method and apparatus for imaging through scattering or obstructing media

Method and apparatus for the monitoring and control of combustion

Polarization controlling fiber probe for semiconductor source spectroscopy system

Chemical species detection including a multisection laser for improved process monitoring

Sensor

Mobile remote detection device and remote detection method for methane gas accumulations

Laser radar apparatus having multiple output wavelengths

External cavity laser having improved single mode operation

Measuring environmental parameters

Cross-sectional mapping of spectral absorbance features

Gas detection method and gas detector device

Modulated reflectance measurement system with multiple wavelengths

System and method for controlling a light source for cavity ring-down spectroscopy

Method for increasing the dynamic range of a cavity enhanced optical spectrometer

Method for detecting a gaseous analyte present as a minor constituent in an admixture

Tunable laser-based chemical imaging system

Semiconductor spectroscopy system

Semiconductor laser with tilted fabry-perot tunable filter

Computer-implemented methods for organizing image data produced by resonant Mie scattering of light from microparticles and resulting data structures

Method and system for noise control in semiconductor spectroscopy system

Gas monitor

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

Laser light source

Oxygen sensor for aircraft fuel inerting systems

Multi channel Raman spectroscopy system and method

System and method for controlling the light source of a cavity ringdown spectrometer

Tag free bio sensing micro strip

Fabry-perot resonator apparatus and method including an in-resonator polarizing element

Dynamic laser power control for gas species monitoring

Fabry-Perot resonator apparatus and method for observing low reflectivity surfaces

Apparatus and methods relating to enhanced spectral measurement systems

Wavelength control for cavity ringdown spectrometer

Method and apparatus for monitoring trace constituents in a fluid

Method and device for measuring the absorption or light diffusion of biological elements

Semiconductor diode laser spectrometer arrangement and method

Wavelength modulation spectroscopy method

System and method for remote quantitative detection of fluid leaks from a natural gas or oil pipeline

Cavity enhanced optical detector

Device and method for spectroscopically measuring a gas concentration by determining a single absorption line

Device and method of trace gas analysis using cavity ring-down spectroscopy

Apparatus and method for improved analysis of liquids by continuous wave-cavity ring down spectroscopy

Cavity ring-down detection of surface plasmon resonance in an optical fiber resonator

Coherent photothermal interferometric spectroscopy system and method for chemical sensing

Aluminum melting method using analysis of fumes coming from the furnace

Flow cell for optical detection having reduced sensitivity to refractive index variation

Method and apparatus for ultra-high sensitivity optical detection of biological and chemical agents

Laser device coupled to a cavity by optical feedback for detecting gas traces

System and method for cavity ring-down spectroscopy using continuously varying continuous wave excitation

Backscatter absorption gas imaging systems and light sources therefore

Mirror translation mechanism for cavity ring down spectroscopy

Wavelength modulation spectroscopy method and system

Tunable laser fluid sensor

System and method for encoded spatio-spectral information processing

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

Apparatus and method for maintaining uniform and stable temperature for cavity enhanced optical spectroscopy

Method and apparatus for rapidly and accurately determining a time constant from cavity ring-down data

Method and apparatus for a tunable diode laser spectrometer for analysis of hydrocarbon samples

Collaborative weld seam tracking method based on laser line scanning sensing and platform thereof

Method, device, and system for detecting soil organic matter

Calibration for tuneable diode lidar gas detection

Vertical emissions monitoring manifold

Low noise response detection using optical probe

Spectroscopy in frequency, time, and position with correlated frequency combs

System and method for far-field optical testing of heat-assisted recording heads

Techniques for rapid detection and quantitation of volatile organic compounds (VOCs) using breath samples

Actuated multi-chamber cells for fluid analysis

Housing apparatus for sensitive gas sensor

Fast and widely tunable monolithic optical parametric oscillator for laser spectrometer

Real time spatial mapping of atmospheric gas distributions

Gas analyzer

Method for operating an optical measuring system for measuring the concentration of a gas component in a measured gas

Trace moisture analyzer instrument, gas sampling and analyzing system, and method of detecting trace moisture levels in a gas

Remote gas leakage detection systems using mid-infrared laser

Adaptive gas analyzer

Detection by active spatially and spectrally structured sensing and learning (DAS4L)

Active multi-spectral sensor

Ring-down binning in FSR hopping mode

Alignment flange mounted optical window for a laser gas analyzer

Laser absorption measurement for clumped isotopes

Regular, stable optical frequency scale for cavity enhanced optical spectroscopy

Systems and methods for measuring a physical parameter of a substance based on an isoclinic point in the absorption spectrum of another substance

Method and system for determining energy content and detecting contaminants in a fluid stream

System and methods for molecular detection using intracavity laser absorption spectroscopy

Optical analyzer and wavelength stabilized laser device for analyzer