Van der Waals materials for nanophotonics and laser devices
We will present how to fabricate nanoantennas and metasurfaces in van der Waarls (vdW) materials in a variety of geometries and a range of photonic applications. We observed Mie resonances as well as strong coupling between the excitonic features and anapole modes in the vdW nanoantenna. Due to the weak vdW interactions of the nanoresonators and the substrate, we were able to use an atomic force microscopy cantilever in the repositioning of double-pillar nanoantennas to achieve ultra-small gaps of 10 nm. By employing a monolayer of WS2 as the gain material, we observe room temperature Purcell enhancement of emission as well as low temperature formation of single photon emitters with enhanced quantum efficiencies. More recently, we have also achieved bound states in the continuum ultra-low threshold lasing with these materials, highlighting the vdW materials as a promising platform for optoelectronic devices.
Authors
- Isabel Barth (ORCID: https://orcid.org/0000-0003-3781-7228)
- Francesco Monticone (ORCID: https://orcid.org/0000-0003-0457-1807)
- Sam Randerson (ORCID: https://orcid.org/0000-0001-7993-8218)
- Donato Conteduca (ORCID: https://orcid.org/0000-0003-0917-2709)
- Panaiot G. Zotev (ORCID: https://orcid.org/0000-0002-8414-4081)
- Guilherme S. Arruda (ORCID: https://orcid.org/0000-0002-5487-0154)
- Emiliano R. Martins (ORCID: https://orcid.org/0000-0002-6255-1479)
- Thomas F. Krauss (ORCID: https://orcid.org/0000-0003-4367-6601)
- Zeki Hayran (ORCID: https://orcid.org/0000-0003-3042-9601)
- A. I. Tartakovskii (ORCID: https://orcid.org/0000-0002-4169-5510)
- Manuel Deckart (ORCID: https://orcid.org/0000-0001-5503-832X)
- Yue Wang (ORCID: https://orcid.org/0009-0000-1087-4463)
Institutions
- Cornell University (US)
- University of York (GB)
- University of Sheffield (GB)
Publication Details
- Published
- 2024-10-02
- DOI
- https://doi.org/10.1117/12.3026846
- Citations
- 1
- Primary Topic
- Photonic and Optical Devices
- Type
- article
- Field-Weighted Citation Impact
- 0.21
Funders
- Engineering and Physical Sciences Research Council