1.
Opt Express
; 20(8): 8804-14, 2012 Apr 09.
Artigo
em Inglês
| MEDLINE
| ID: mdl-22513591
RESUMO
This paper presents results from a pulsed-laser cavity ring-down spectrometer with novel field programable gate array real-time data collection. We show both theoretically and experimentally that the data extraction can be achieved from a single cavity ringdown event, and that the absorbance can be determined without the need to fit the ringdown time explicitly. This methodology could potentially provide data acquisition rate up to 1 MHz, with the accuracy and precision comparable to nonlinear least squares fitting algorithms.