Published in Chinese Optics Letters, Volume 5, Issue 9, August 10, 2007, pages 543-545.
This paper was published in Chinese Optics Letters and is made available as an electronic reprint with the permission of OSA. One print or electronic copy may be made for personal use only. Systematic or multiple reproduction, distribution to multiply locations via electronic or other means, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper are prohibited. Copyright © 2007 Optical Society of America. The definitive version is available at http://www.opticsinfobase.org/col/abstract.cfm?id=142150.
We have theoretically investigated the guiding mode patterns of hollow nanowires. Two types of nanowires, round shape and hexagonal shape, are examined with different combination of outer and inner radii. Because of electric field discontinuity at hollow interfaces and evanescent modes overlap in low refractive index region, strong light guiding and confinement are achieved in both hollow wire structures.
Electrical and Computer Engineering