CST – Computer Simulation Technology

Periscope-like endoscope for transmission of a near field in the infrared range
Atiqur Rahman, Pavel A. Belov, Yang Hao, Clive Parini
Optics Letters
Volume: 35, Issue: 2, Jan. 2010
A possibility to transmit near field through a periscope-like endoscope formed by an array of bent metallic rods is investigated. This is a first step on the way to development of flexible near-field endoscopes. An effort to tunnel the near field of a crown-shaped object through the periscope with 45° bending angle is made, and a shift in the operating frequency band with respect to that of the straight endoscope is observed. An analysis of transmission coefficient as a function of transverse wave vector has been provided for a better understanding of the device operation. A distinctive nature of surface waves appearing at both interfaces has also been reported.

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