It simply is the photoelectric effect discovered by Einstein, and published in his first 1905 paper, for which he earned the Nobel Prize:

https://onlinelibrary.wiley.com/doi/epdf/10.1002/andp.19053220607

Thank you, André,

Yes, to me, it was clear that this was the photoelectric effect. What I don’t understand is why a supposed physicist presents this as a novel technique for electron emission. I thought it might be something I wasn’t aware of because I had never seen the photoelectric effect referred to as PMEE. Also, as can be seen, the instrument doesn’t seem to emit electrons but rather plasma generated by corona discharge. I don’t want to be too critical, but apparently, this device is either a fraud or the result of ignorance from someone claiming to be a physicist.

Thank you very much for the article and your opinion.

José Pérez de la Torre

Dear José,

I agree with you on all counts. The pressure to publish at all costs to prep one's status up in the community directly leads to this sort of abuse of little referenced historical discoveries. This is not a recent problem.

Best Regards, André