Journal
OPTICS EXPRESS
Volume 18, Issue 9, Pages 9643-9650Publisher
OPTICAL SOC AMER
DOI: 10.1364/OE.18.009643
Keywords
-
Categories
Funding
- National Science Foundation
- Air Force Office of Scientific Research
Ask authors/readers for more resources
We experimentally demonstrate complete two-dimensional (2-D) confinement of terahertz (THz) energy in finite-width parallel-plate waveguides, defying conventional wisdom in the century-old field of microwave waveguide technology. We find that the degree of energy confinement increases exponentially with decreasing plate separation. We propose that this 2-D confinement is mediated by the mutual coupling of plasmonic edge modes, analogous to that observed in slot waveguides at optical wavelengths. By adiabatically tapering the width and the separation, we focus THz waves down to a size of 10 mu m (approximate to lambda/260) by 18 mu m (approximate to lambda/145), which corresponds to a mode area of only 2.6 x 10(-5) lambda(2). (C) 2010 Optical Society of America
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available