We present a novel waveguide geometry for enhancing and confining light in a nanometer-wide low-index material. Light enhancement and confinement is caused by large discontinuity of the electric field at high-index-contrast interfaces. We show that by use of such a structure the field can be confined in a 50-nm-wide low-index region with a normalized intensity of 20 microm(-2). This intensity is approximately 20 times higher than what can be achieved in SiO2 with conventional rectangular waveguides.
CITATION STYLE
Almeida, V. R., Xu, Q., Barrios, C. A., & Lipson, M. (2004). Guiding and confining light in void nanostructure. Optics Letters, 29(11), 1209. https://doi.org/10.1364/ol.29.001209
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