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

T Zeuner; W Paa; C Mühlig; H Stafast

doi:10.1063/1.4795157

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

Rev Sci Instrum. 2013 Mar;84(3):036104. doi: 10.1063/1.4795157.

Authors

T Zeuner¹, W Paa, C Mühlig, H Stafast

Affiliation

¹ Institute of Photonic Technology, Albert-Einstein-Str. 9, 07745 Jena, Germany. thomas.zeuner@ipht-jena.de

PMID: 23556856
DOI: 10.1063/1.4795157

Abstract

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.