Journal
NANO TODAY
Volume 8, Issue 5, Pages 469-479Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.nantod.2013.08.010
Keywords
Nanoscale antennas; Localized surface plasmons; Nonlinear optical susceptibility; Plasmonic lasers
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Funding
- Initiative for Sustainability and Energy at Northwestern (ISEN) Award
- NSF-MRSEC program at the Materials Research Science and Engineering Center at Northwestern University [DMR-1121262]
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Nanoscale antennas are optical devices that can facilitate the localization and transfer of electromagnetic (EM) energy at the nanometer length scale. In this review, we discuss nanoscale antennas based on coupled metal nanoparticles that exhibit strong optical nonlinear behavior. These distinct properties are a consequence of the large EM field concentration at the localized plasmon resonance frequency, which can enhance the local strength of light-matter interactions. Specifically, we will highlight how optical nanoantennas can boost nonlinear processes, resonant energy transfer between surface plasmons and excitons, and lasing action in the presence of gain materials. (C) 2013 Elsevier Ltd. All rights reserved.
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