Sealed-cell mercury resonance ionization imaging detector

Dimitri Pappas, Oleg I. Matveev, Benjamin W. Smith, Michael R. Shepard, Alexei A. Podshivalov, James D. Winefordner

Research output: Contribution to journalArticlepeer-review

11 Scopus citations


A sealed, compact mercury atomic-absorption resonance ionization imaging detector has been developed and evaluated. The sensitivity of the detector as well as its ability to form two-dimensional images has been demonstrated. Images of faint light (1000 photons) have been recorded by image summation. It is shown that one can obtain high-quality images with a spatial resolution of at least 130 mmby detecting the ionic component of the imaging signal. Distortion, more noise, and poorer spatial resolution were observed when the electron component of the signal was detected. We studied the influence of voltage on the cell electrodes to find the conditions for optimum signal-to-noise ratio.

Original languageEnglish
Pages (from-to)4911-4917
Number of pages7
JournalApplied Optics
Issue number27
StatePublished - Sep 20 2000


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