Abstract
A simple method for detecting time-resolved weak light signals with a digital oscilloscope, which allows detection of several photons per one excitation period, is described. A system for detecting low-temperature photoluminescence with a resolution of 15 ns has been implemented on the basis of this technique and a method for attaining a resolution of 1–3 ns has been developed. The luminescence kinetics of Si/Ge x Si1 − x /Si quantum wells was measured in the near-IR region.
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Original Russian Text © S.N. Nikolaev, V.S. Krivobok, A.Yu. Klokov, V.S. Bagaev, 2009, published in Pribory i Tekhnika Eksperimenta, 2009, No. 1, pp. 121–124.
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Nikolaev, S.N., Krivobok, V.S., Klokov, A.Y. et al. A system for detecting weak light signals with nanosecond resolution. Instrum Exp Tech 52, 110–112 (2009). https://doi.org/10.1134/S0020441209010187
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DOI: https://doi.org/10.1134/S0020441209010187