Broad band and low loss mid-IR flexible hollow waveguides

N. Croitoru, A. Inberg, M. Ben-David, I. Gannot

Research output: Contribution to journalArticlepeer-review

Abstract

This paper introduces a deposition method to create a multilayered waveguide with alternating layers of high index of refraction contrast. A very thin Ag layer, practically transparent in the mid-IR radiation wavelengths of CO2 and Er-YAG lasers, was created. This enabled a good contrast of the indices of refraction of silver/silver iodide. Theoretical calculations as well as experiments have shown that transmission was higher at these wavelengths for two pair layers, in comparison to one pair of silver/silver iodide. Windows of transmittance and small sensitivity to bending were demonstrated for those two pair layer waveguides. This method could be extended to an increased number of pairs to configure a true photonic band gap waveguide.

Original languageEnglish
Pages (from-to)1341-1352
Number of pages12
JournalOptics Express
Volume12
Issue number7
DOIs
StatePublished - Apr 2004

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