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Published October 12, 2009 | Published
Journal Article Open

Direct imaging of tunneling from a potential well


We experimentally map the wavefunction in the vicinity of a radial potential well. We photograph light intensity near the tunneling region as well as measure the spiraling phase structure via interference with a reference wave. This spiraling phase structure is required for conservation of angular momentum. The experimental image reveals the non-intuitive emission of light from a region in space that is empty of material and relatively far from the device.

Additional Information

© 2009 Optical Society of America. Received 22 Jul 2009; revised 3 Sep 2009; accepted 10 Sep 2009; published 8 Oct 2009.

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Published - Tomes2009p6204Opt_Express.pdf


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August 19, 2023
October 19, 2023