Abstract
We present a design for a subwavelength C-shaped optical waveguide with a junction that efficiently transports light while maintaining tight confinement with an exit spot size of . Finite-difference time-domain simulations of perfect electric conductors and Au C-aperture waveguides are performed for optical frequencies. A design resonant near is presented, with a spot size of and an energy density enhancement factor of 10 for a bent waveguide of total length .
© 2007 Optical Society of America
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