Speakers
Description
Extreme plasmons* that are nonperturbative excitations of quantum electron gas inherent in conductive, nanofabricated materials, open unprecedented PetaVolts per meter fields. PV/m fields enable concepts such as a collider on a chip, nano-wiggler based gamma-ray lasers, opening the vacuum using high-field polarizability etc.
This technique that relies on emergent properties of the conduction electrons is being prototyped as part of our experimental program using E339 at SLAC. In experiments, we controllably excite extreme plasmons that not only access large fields but also preserve the material structure from irreversible damage, making a quantum accelerator ** and PV/m plasmonics*** realizable. Numerous unexplored aspects of quantum dynamics underlying large-amplitude, collective oscillations of the quantum electron gas work in unison to allow access to quantum coherence limit, $E_Q=0.1 \sqrt{n_0 [10^{24} \rm cm^{-3}]} ~ \rm PVm^{-1}$, where $n_0$ is tunable using techniques in material science.
Here we present the experimental design and initial results that indicate the excitation of ten GV/m fields and material resilience over thousands of shots upon careful tuning of appropriately structured, doped semiconductors****. A semiconductor tube that is closely matched and configured to collisionlessly interact with FACET-II beams sustains surface crunch-in plasmons critical for stable excitation as well as tunability that paves the way to significantly higher fields.
Footnotes
- Extreme plasmons, Advanced Quantum Technologies, vol.8, 2500037, 2025,
** Nanomaterials Based Nanoplasmonic Accelerators and Light-Sources Driven by Particle-Beams, IEEE Access, vol. 9, pp. 54831-54839 (2021),
*** PetaVolts per meter Plasmonics: introducing extreme nanoscience as a route towards scientific frontiers, Journal of Instrumentation, vol. 18, P07019 (2023)
**** Approaching petavolts per meter plasmonics using structured semiconductors, IEEE Access, vol. 11, pp. 476-493, 2023
Funding Agency
This work is supported by the Department of Electrical Engineering at the University of Colorado Denver, Powerbeam Inc., and access to SLAC national lab-based FACET-II facility.
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