Abstract
Photon-assisted tunneling is proposed for the investigation of optical plasma resonances; this is demonstrated by the direct observation of the Ag resonance in appropriate Ag--Al structures. A spectral scan of the ratio of the signals photoinduced by the and polarizations shows a large enhancement corresponding to the plasma resonance of Ag.
- Received 15 December 1975
DOI:https://doi.org/10.1103/PhysRevLett.36.435
©1976 American Physical Society