798 research outputs found
Measurements with an ultrafast scanning tunnelling microscope on photoexcited semiconductor layers
Transient measurements with an ultrafast scanning tunneling microscope on semiconductor surfaces
Geometric potential and transport in photonic topological crystals
We report on the experimental realization of an optical analogue of a quantum
geometric potential for light wave packets constrained on thin dielectric
guiding layers fabricated in silica by the femtosecond laser writing
technology. We further demonstrate the optical version of a topological
crystal, with the observation of Bloch oscillations and Zener tunneling of
purely geometric nature
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