Phase-shift cavity ring-down spectroscopy to determine absolute line intensities

J.H. Helden, van, D.C. Schram, R.A.H. Engeln

Onderzoeksoutput: Bijdrage aan tijdschriftTijdschriftartikelAcademicpeer review

23 Citaten (Scopus)


Cavity ring-down detection techniques can sensitively determine frequency-dependent absorption cross-sections of gasses. However, so-called line-width problems and amplified spontaneous emission of the laser light source lowers the technique’s quantitative accuracy. Using phase-shift cavity ring-down spectroscopy (PSCRD), we measured absolute line intensities of the spin-forbidden transitions in the band of molecular oxygen. Our results were within 4% of values obtained from the HITRAN database, demonstrating the accuracy of PSCRD, when corrected for amplified spontaneous emission. Its high sensitivity (2 × 10-8 cm-1), simplicity and high duty cycle make PSCRD a powerful diagnostic technique.
Originele taal-2Engels
Pagina's (van-tot)320-325
TijdschriftChemical Physics Letters
Nummer van het tijdschrift4-6
StatusGepubliceerd - 2004


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