title: Periscope-like endoscope for transmission of a near field in the infrared range.
abstract: 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 degrees 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.
authors.affiliation: School of Electronic Engineering and Computer Science, Queen Mary University of London,Mile End Road, London E1 4NS, UK. atiqur.rahman@elec.qmul.ac.uk
authors.forename: Atiqur
authors.initials: A
authors.lastname: Rahman
authors.forename: Pavel A
authors.initials: PA
authors.lastname: Belov
authors.forename: Yang
authors.initials: Y
authors.lastname: Hao
authors.forename: Clive
authors.initials: C
authors.lastname: Parini