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Optics Letters 31 (2006) 1127
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Reflectionless Tunnelling of Light in Gradient Optics
Alexander Shvartsburg 1, Guillaume Petite 2
(2006)

We analyse the optical (or microwave) tunnelling properties of electromagnetic waves passing through thin films presenting a specific index profile providing a cut-off frequency, when they are used below this frequency. We show that contrary to the usual case of a square index profile, where tunnelling is accompanied with a strong attenuation of the wave due to reflection, such films present the possibility of a reflectionless tunnelling, where the incoming intensity is totally transmitted.
1:  Central Design Bureau for Unique Instrumentation (CDBUI)
Russian Academy of Sciences
2:  Laboratoire des Solides Irradiés (LSI)
CNRS : UMR7642 – Polytechnique - X – CEA : DSM/IRAMIS
Physics/Physics/Optics
Tunnel effect
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