76 research outputs found

    Deep-ultraviolet cavity ringdown spectroscopy

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    The sensitive optical detection technique of cavity ringdown spectroscopy is extended to the wavelength range 197-204 nm. A novel design narrowband Fourier-transform-limited laser is used, and the technique is applied to gas-phase extinction measurements in CO2, SF6, and O-2. Further demonstration of the system capabilities is given in high-resolution recordings of the Schumann-Runge (0, 0), (1, 0), and (2, 0) bands in O-2. (C) 2004 Optical Society of America

    Combining the multiplex advantage of FT-spectrometers with the sensitivity of the cavity ring down technique

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    \u3cp\u3eIn this contribution we will show how the ulta-high sensitivity of the Cavity Ring Down absorption technique can be combined with the multiplex advantage of Fourier Transform spectrometers.\u3c/p\u3
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