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OPO-Based Photoacoustic Spectroscopy Speeds Up Gas Analysis

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Sauli Sinisalo, Gasera Ltd., and Håkan Karlsson, Cobolt AB

High mid-IR output power from an optical parametric oscillator teams up with novel cantilever-enhanced photoacoustic measurement technology to offer extreme sensitivity and selectivity in industrial gas analysis and monitoring. The ultimate instrumentation solution for trace-gas detection and analysis in environmental or atmospheric monitoring, industrial process control or medical diagnostics would be one that provides a sensitive and selective, compact and robust multigas analyzer with wide dynamic range and fast response time. Figure 1. Silicon MEMS-fabricated cantilever pressure...Read full article

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    Published: December 2014
    Glossary
    optical parametric oscillator
    A laser-pumped crystal with nonlinear optical properties inside of an optical resonator in which the output generates coherent light whose output can be tuned continuously over a variety of infrared and visible wavelengths. The OPO generates a short wavelength component called the signal and a longer wavelength component called the idler. Conservation of energy dictates that the sum of the photon energy of the signal and that of the idler equals the original pump photon energy.
    FeaturesOpticsspectroscopyLight SourcesdefenseMaterialsBiophotonicsAmericasEuropeoptical parametric oscillatorhigh mid-IR output powerphotoacoustic infrared spectroscopygas analysisgas monitoringenvironmental monitoringatmospheric monitoringmedical diagnosticsmultigas analyzerSauli SinisaloHåkan KarlssonCoboltGasera

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