Indukuri S R K Chaitanya, Bar-David Jonathan, Mazurski Noa, Levy Uriel
Department of Applied Physics, Faculty of Science and the Center for Nanoscience and Nanotechnology , The Hebrew University of Jerusalem , Jerusalem , 91904 , Israel.
ACS Nano. 2019 Oct 22;13(10):11770-11780. doi: 10.1021/acsnano.9b05730. Epub 2019 Oct 9.
Cavities are the building blocks for multiple photonic applications from linear to nonlinear optics and from classical optics to quantum electrodynamics. Hyperbolic metamaterial cavities are one class of optical cavities that have recently been realized and shown to possess desirable characteristics such as engineered refractive indices and ultrasmall mode volumes, both beneficial for enhancement of light-matter interactions at the nanoscale. We hereby report the design, fabrication, and experimental characterization of nanoscale hyperbolic metamaterial cavities at the visible frequency. We show experimentally that these nanocavities enhance the light-matter interaction at the nanoscale and demonstrate increased photonic density of states and enhanced free space radiation efficiency of quantum dots coupled to such cavities, thus demonstrating the importance of hyperbolic metamaterial cavities for applications in solid-state light sources, quantum technologies, and cavity quantum electrodynamics.
腔是从线性光学到非线性光学、从经典光学到量子电动力学等多种光子学应用的基础构建单元。双曲线超材料腔是一类最近才实现的光学腔，已被证明具有诸如可设计的折射率和超小模式体积等理想特性，这两者都有利于增强纳米尺度下的光与物质相互作用。我们在此报告了可见光频率下纳米尺度双曲线超材料腔的设计、制造及实验表征。我们通过实验表明，这些纳米腔增强了纳米尺度下的光与物质相互作用，并证明了耦合到此类腔的量子点的光子态密度增加以及自由空间辐射效率提高，从而证明了双曲线超材料腔在固态光源、量子技术和腔量子电动力学应用中的重要性。
