Two-photon fluorescence diagnostics of femtosecond laser tweezers.
نویسندگان
چکیده
We show how two-photon fluorescence signal can be used as an effective detection scheme for trapping particles of any size in comparison to methods using back-scattered light. Development of such a diagnostic scheme allows us a direct observation of trapping a single nanoparticle, which shows new directions to spectroscopy at the single-molecule level in solution.
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عنوان ژورنال:
- Current science
دوره 101 7 شماره
صفحات -
تاریخ انتشار 2011