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Why not apply plasmonic nanoparticles for electromagnetic field enhancement via nanofocusing? (source: http://iopscience.iop.org/article/10.7567/JJAP.55.08RG01
by deepnotderp 9y ago
Why not apply plasmonic nanoparticles for electromagnetic field enhancement via nanofocusing?
(source: http://iopscience.iop.org/article/10.7567/JJAP.55.08RG01/pdf http://iopscience.iop.org/article/10.7567/JJAP.55.08RG01/pdf)
I've seen this paper floating around for a while but not many attempts at experimental validation.
- amirhirsch 9y agoI’ve had an ongoing conversion with a few other people about using electromagnetic metamaterials for field enhancement and focusing in a plasma channel. We had previously worked on optical metamaterials for chemical sensing, and the idea for plasma enhancement was for considering staging and filtering methods for plasma wakefield accelerators in order to generate enough GeV for free electron lasing. The same idea could be used for proton acceleration for fusion. Possibly a concern is heat generated in the material by an accelerated plasma may be incompatible with passive coloumb-mode filtering. We had considered a target might be something like a disposable cartridge similar to other laser fusion designs. A very clever result in wakefield staging (out of the research labs) involves using a VHS tape for sacrificial optical coupling. The 10PW 1ps laser described in the parent post is not practical and would require similar staging methods.
- throwawayaway12 9y agoI have spotty wifi right now and can't read the actual paper at the moment (mainly a comment to remind myself to read this later). Quick thoughts from just reading the abstract: - There are very few facilities that do direct drive ICF (LLE in USA) -I am curious if the looked at hydro instabilities and preheating in this study