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Time-correlated single photon counting and optical measurement systems for studying single fluorescent emitters under high vacuum conditions Toshiki Yamada, Kenichi Goushi, Xingsheng Xu, Akira Otomo In this paper, we introduce a modified inverted microscope system in which an objective with high NA (0.95) is located under high-vacuum conditions, and a time-correlated single photon counting system is used along with a modified photomultiplier tube for the characterization of single emitters under high-vacuum conditions. The modified inverted microscope system is designed to be simple, compact, and easy to handle. As an example, the optical properties of individual colloidal semiconductor nanocrystals (CdSe/ZnS) were studied by using these systems. doi:10.1016/j.tsf.2008.09.029 |