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physics.optics2018
Polariton hyperspectral imaging of two-dimensional semiconductor crystals
Christian Gebhardt, Michael Förg, Hisato Yamaguchi +8
Atomically thin crystals of transition metal dichalcogenides (TMDs) host excitons with strong binding energies and sizable light-matter interactions. Coupled to optical cavities, m…
physics.optics2014★ 152 cited
Highly coherent electron beam from a laser-triggered tungsten needle tip
Dominik Ehberger, Jakob Hammer, Max Eisele +4
We report on a quantitative measurement of the spatial coherence of electrons emitted from a sharp metal needle tip. We investigate the coherence in photoemission using near-ultrav…