We discuss the conditions in which guided modes exist in a circular waveguide with an anisotropic, uniaxial metamaterial cladding. These hollow-core waveguides can guide modes at deep subwavelength dimensions, with core diameters more than 20 times smaller than the operating wavelength.
© 2012 Optical Society of America
Original Manuscript: June 4, 2012
Revised Manuscript: July 16, 2012
Manuscript Accepted: July 17, 2012
Published: August 22, 2012
Shaghik Atakaramians, Alexander Argyros, Simon C. Fleming, and Boris T. Kuhlmey, "Hollow-core waveguides with uniaxial metamaterial cladding: modal equations and guidance conditions," J. Opt. Soc. Am. B 29, 2462-2477 (2012)