TY - JOUR
T1 - Phase-shift cavity ring-down spectroscopy to determine absolute line intensities
AU - Helden, van, J.H.
AU - Schram, D.C.
AU - Engeln, R.A.H.
PY - 2004
Y1 - 2004
N2 - 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.
AB - 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.
U2 - 10.1016/j.cplett.2004.10.081
DO - 10.1016/j.cplett.2004.10.081
M3 - Article
SN - 0009-2614
VL - 400
SP - 320
EP - 325
JO - Chemical Physics Letters
JF - Chemical Physics Letters
IS - 4-6
ER -