Photothermal single particle Rutherford scattering microscopy.
نویسندگان
چکیده
We demonstrate that the quantum-mechanical description of Rutherford scattering has a photonic counterpart in a new form of single particle photothermal microscopy. Using a split detector we provide experimental evidence that photons are deflected by a photothermal potential that is created by a local refractive index change around a heated nanoparticle. The deflection experienced is shown to be the analog to the deflection of a massive particle wave packet in unscreened spinless Coulomb scattering. The experimentally found focal detection geometry reveals a lateral split feature which will allow new correlation-based velocimetry experiments of absorbing particles with ultrahigh sensitivity.
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ورودعنوان ژورنال:
- Physical review letters
دوره 110 10 شماره
صفحات -
تاریخ انتشار 2013