1. Silicon Nanoantenna Mix Arrays for a Trifecta of Quantum Emitter Enhancements
- Author
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Sergey Gorelik, Ping Bai, Jinfa Ho, Arseniy I. Kuznetsov, Joel K. W. Yang, Soroosh Daqiqeh Rezaei, Zhaogang Dong, Ramón Paniagua-Domínguez, Emmanuel Lassalle, Febiana Tjiptoharsono, Darren C. J. Neo, and Johnathan Yik
- Subjects
Silicon ,Nanostructure ,Materials science ,Light ,Physics::Optics ,chemistry.chemical_element ,Bioengineering ,02 engineering and technology ,Laser pumping ,Dielectric ,Purcell effect ,Fluorescence ,Antenna array ,General Materials Science ,Absorption (electromagnetic radiation) ,business.industry ,Lasers ,Mechanical Engineering ,General Chemistry ,021001 nanoscience & nanotechnology ,Condensed Matter Physics ,Nanostructures ,chemistry ,Optoelectronics ,0210 nano-technology ,business - Abstract
Dielectric nanostructures have demonstrated optical antenna effects due to Mie resonances. Previous work has exhibited enhancements in absorption, emission rates and directionality with practical limitations. In this paper, we present a Si mix antenna array to achieve a trifecta enhancement of ∼1200-fold with a Purcell factor of ∼47. The antenna design incorporates ∼10 nm gaps, within which fluorescent molecules strongly absorb the pump laser energy through a resonant mode. In the emission process, the antenna array increases the radiative decay rates of the fluorescence molecules via a Purcell effect and provides directional emission through a separate mode. This work could lead to novel CMOS-compatible platforms to enhance fluorescence for biological and chemical applications.
- Published
- 2021