Phys. Rev. Lett. 97, 053902 (2006) [4 pages]Making Tunnel Barriers (Including Metals) Transparent
See accompanying Physics Focus The classical “brick wall,” which may, according to quantum mechanics, leak via tunneling, is here shown to be completely transparent when appropriate impedance matching media are placed both in front of and behind the “wall.” Optical experiments involving beyond-critical-angle-tunnel barriers in the frustrated total internal reflection scheme which mimic quantum mechanical systems provide convincing proof of this remarkable effect. The same mechanism also allows vastly enhanced transmission through unstructured thin metal films without the need for surface wave excitation. © 2006 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.97.053902
DOI:
10.1103/PhysRevLett.97.053902
PACS:
42.25.Bs, 03.65.Xp, 42.50.Xa
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