Note: Broadband cavity ring-down spectroscopy of an intra-cavity bulk sample

Zeuner, T.; Paa, W.; Mühlig, C.; Stafast, H.
March 2013
Review of Scientific Instruments;Mar2013, Vol. 84 Issue 3, p036104
Academic Journal
A cavity ring-down (CRD) setup equipped with a pulsed broadband light source (480 nm <= λ<= 650 nm) and a multichannel detection system (temporal gate width Δτ = 20 ns) is used to simultaneously record the optical loss spectrum of an intra-cavity CaF2 sample and its changes upon transverse ArF laser irradiation at 193 nm. The CRD setup with mirrors of high reflectivity (R > 99.93%) allows to register loss changes of 5 × 10-5 with a spectral resolution of 0.3 nm in less than 2 min.


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