Excitation of a single hollow waveguide mode using inhomogeneous anisotropic subwavelength structures

Yaniv Yirmiyahu, Avi Niv, Gabriel Biener, Vladimir Kleiner, Erez Hasman

Research output: Contribution to journalArticlepeer-review

33 Scopus citations

Abstract

We propose and analyze a general approach for coupling a free space uniformly polarized beam to a desired hollow waveguide mode, thus enabling a single mode operation. The required spatial polarization state manipulation is achieved by use of inhomogeneous anisotropic subwavelength structures. Demonstration is obtained by coupling a linearly polarized CO2 laser beam at a wavelength of 10.6μm to the TE01, TM01, EH11, EH21, and EH31 modes of a 300μm diameter dielectric-coated hollow metallic waveguide. Full polarization and intensity analysis of the beam at the waveguide's inlet and outlet ports indicates a high coupling efficiency to a single waveguide mode. Finally, shaping the waveguide mode to a nearly diffraction limited linearly polarized beam and to a radially polarized vectorial vortex are also demonstrated.

Original languageEnglish
Pages (from-to)13404-13414
Number of pages11
JournalOptics Express
Volume15
Issue number20
DOIs
StatePublished - 1 Oct 2007
Externally publishedYes

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

Fingerprint

Dive into the research topics of 'Excitation of a single hollow waveguide mode using inhomogeneous anisotropic subwavelength structures'. Together they form a unique fingerprint.

Cite this