Author/Authors :
A. von Engeln، نويسنده , , Richard and von Helden، نويسنده , , Gert and Berden، نويسنده , , Giel and Meijer، نويسنده , , Gerard، نويسنده ,
Abstract :
Cavity ring down absorption spectroscopy with a continuous light source is used to measure the transition frequencies and absolute absorption coefficient of the weak b1Σg+(v′ = 2) ← X 3Σg−(v″ = 0) transition of 18O2. The absorption spectrum is extracted from a measurement of the magnitude of the phase shift that an intensity modulated continuous light beam experiences upon passing through an unstabilized optical cavity.
