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Purcell Enhancement of Parametric Luminescence: Bright and Broadband Nonlinear Light Emission in Metamaterials
Artur R. Davoyan, Harry A. Atwater
Single-photon and correlated two-photon sources are important elements for optical information systems. Nonlinear downconversion light sources are robust and stable emitters of sin…
Hot Carrier Dynamics in Photoexcited Gold Nanostructures: Role of Interband Excitations and Evidence for Ballistic Transport
Giulia Tagliabue, Adam S Jermyn, Ravishankar Sundararaman +5
Harnessing short-lived photoexcited electron-hole pairs in metal nanostructures has the potential to define a new phase of optoelectronics, enabling control of athermal mechanisms…
High Photovoltaic Quantum Efficiency in Ultrathin van der Waals Heterostructures
Joeson Wong, Deep Jariwala, Giulia Tagliabue +4
We report experimental measurements for ultrathin (< 15 nm) van der Waals heterostructures exhibiting external quantum efficiencies exceeding 50%, and show that these structures ca…