TY - JOUR TI - Three-dimensional nanoconfinement of broadband optical energy in all-dielectric photonic nanostructure AB - We demonstrate the confinement of broadband optical energy in the visible to near-infrared regime in a three-dimensional nanoscale volume with high energy efficiency in a nanostructure consisting of multiple nanoslits in dielectric chacolgenide material. We find that a broadband optical field can be confined down to the scale of 1 nm (λ/650) with a confinement volume of λ3/3×104. The figure of merit of the nanostructure can be up to 10 times that achieved by plasmonic lensing and nanofocusing. Our work opens a new way for truly nanoscaled photonics applicable to nanolithograpy, nanoimaging, lab-on-chip nanosensing, single-molecule detection, and nanospectroscopy. AU - Lin, Han AU - Zhang, Qiming AU - Gu, Min PB - OSA DA - 2013/10/01 PY - 2013 T2 - Photonics Research J2 - Photon. Res. JF - Photonics Research JO - Photon. Res. JA - Photon. Res. VL - 1 IS - 3 SP - 136 EP - 139 KW - Nanophotonics and photonic crystals KW - Subwavelength structures, nanostructures UR - http://www.opticsinfobase.org/prj/abstract.cfm?URI=prj-1-3-136 DO - 10.1364/PRJ.1.000136 ER -