Efficient, designable, and broad-bandwidth optical extinction via aspect-ratio-tailored silver nanodisks
Author(s)
DeLacy, B. G.; Anquillare, E. L.; Miller, Owen D.; Hsu, Chia Wei; Joannopoulos, John; Johnson, Steven G; Soljacic, Marin; ... Show more Show less
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Subwavelength resonators, ranging from single atoms to metallic nanoparticles, typically exhibit a narrow-bandwidth response to optical excitations. We computationally design and experimentally synthesize tailored distributions of silver nanodisks to extinguish light over broad and varied frequency windows. We show that metallic nanodisks are 2–10x more efficient in absorbing and scattering light than common structures, and can approach fundamental limits to broadband scattering for subwavelength particles. We measure broadband extinction per volume that closely approaches theoretical predictions over three representative visible-range wavelength windows, confirming the high efficiency of nanodisks and demonstrating the collective power of computational design and experimental precision for developing new photonics technologies.
Date issued
2016-05Department
Massachusetts Institute of Technology. Department of Mathematics; Massachusetts Institute of Technology. Department of PhysicsJournal
Optics Express
Publisher
Optical Society of America
Citation
Anquillare, E. L. et al. “Efficient, Designable, and Broad-Bandwidth Optical Extinction via Aspect-Ratio-Tailored Silver Nanodisks.” Optics Express 24.10 (2016): 10806.
Version: Author's final manuscript
ISSN
1094-4087