Use of streak camera for time-resolved photon counting fluorimetry

Publisher Website
Google Scholar
Abstract
The use of a conventional streak camera for subnanosecond time-resolved fluorimetry is extended to the single-photon counting regime by utilizing intensified readout of the phosphor. The system achieves the usual key advantages of photon counting, namely single-photon sensitivity, large dynamic range and shot noise limited statistics, but also permits measurements of lower repetition rate and faster time response phenomena, in regimes inaccessible to microchannel plate photomultiplier instrumentation. Pile-up and problems associated with the slow decay and non-uniformity of the response and readout of the stream camera phosphor are discussed.