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MO: Molekülphysik

MO 42: Poster II

MO 42.21: Poster

Dienstag, 8. März 2005, 14:00–16:00, Poster HU

Incoherent Broad-Band Cavity Enhanced Absorption Spectroscopy (IBBCEAS) of Liquid Samples — •Sven E. Fiedler¹, Achim Hese¹, and Albert A. Ruth² — ¹Institut für Atomare Physik und Fachdidaktik, Technische Universität Berlin, Hardenbergstr. 36, 10623 Berlin, Germany — ²Department of Physics, National University of Ireland, University College Cork, Cork, Ireland

IBBCEAS is a new very sensitive method for broad-band absorption measurements. The sensitivity of classical spectrometers (white light source, sample-chamber, monochromator, CCD-array) can be enhanced using an optical cavity by orders of magnitude. The calculated enhancement of the sensitivity by the cavity mirrors as well as examples of IBBCEA spectra in the liquid phase will be presented.