Tailoring free electron spontaneous emission from graphene using shaped electron wavepackets
CLEO: QELS_Fundamental Science, 2022•opg.optica.org
… We find that by tailoring the input momentum eigenstates that compose the electron
wavepacket, one can control both the emission directionality and intensity. We can enhance
the directionality and intensity even further by adding more electron states and atoms (Fig. 1).
We … In summary, we show that shaped electrons can be used to tailor and enhance the
properties of free electron spontaneous emission in crystalline materials. In particular,
incoherent and non-directional bremsstrahlung can be made both coherent and directional via …
wavepacket, one can control both the emission directionality and intensity. We can enhance
the directionality and intensity even further by adding more electron states and atoms (Fig. 1).
We … In summary, we show that shaped electrons can be used to tailor and enhance the
properties of free electron spontaneous emission in crystalline materials. In particular,
incoherent and non-directional bremsstrahlung can be made both coherent and directional via …
Abstract
Photons emitted via bremsstrahlung are inherently incoherent and non-directional. We show that the intrinsic cross-section of bremsstrahlung from crystalline solids can be enhanced and made directional by shaping the quantum wave nature of free electrons.
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