Paratellurite Nanowires as a Versatile Material for THz Phonon Polaritons
Polaritons, i.e., hybrid quasi-particles of light and matter resonances, have been extensively investigated due to their potential to enhance light–matter interactions. Although polaritonic applications thrive in the mid-infrared range, their extension to the terahertz (THz) range remains limited. Here, we present paratellurite (α-TeO2) nanowires, a versatile material acting as a platform for different types of phonon polaritons. Utilizing synchrotron infrared nanospectroscopy from 10 to 24 THz, we uncover the polaritonic properties of α-TeO2 nanowires, showcasing their dual functionality as both a Fabry–Pérot cavity and a waveguide for surface phonon polaritons. Furthermore, near-field measurements with a free-electron laser as a THz source reveal a localized optical contrast down to 5.5 THz, an indication of hyperbolic bands. Our findings complement the repertoire of polaritonic materials, with significant implications for advancing THz technologies.
Authors
- Flávio H. Feres (ORCID: https://orcid.org/0000-0001-9812-974X)
- Raul O. Freitas (ORCID: https://orcid.org/0000-0002-3285-5447)
- J. C. González (ORCID: https://orcid.org/0000-0001-9155-1657)
- Emilson Ribeiro Viana (ORCID: https://orcid.org/0000-0002-1883-3508)
- Ingrid D. Barcelos (ORCID: https://orcid.org/0000-0002-5778-7161)
- Lukas Wehmeier (ORCID: https://orcid.org/0000-0001-8416-953X)
- Susanne C. Kehr (ORCID: https://orcid.org/0000-0002-3857-673X)
- J. Michael Klopf (ORCID: https://orcid.org/0000-0002-3431-6666)
- Maximilian Obst (ORCID: https://orcid.org/0000-0003-0370-425X)
- Andrei Luferau (ORCID: https://orcid.org/0009-0009-1876-2592)
- Stephanie N. Gilbert Corder (ORCID: https://orcid.org/0000-0002-5041-8670)
- Mattheus Torquato (ORCID: https://orcid.org/0000-0003-0960-9253)
- Lukas M. Eng (ORCID: https://orcid.org/0000-0002-2484-4158)
- Francisco C. B. Maia (ORCID: https://orcid.org/0000-0002-4998-4624)
- Hans A. Bechtel (ORCID: https://orcid.org/0000-0002-7606-9333)
- Rafael Mayer (ORCID: https://orcid.org/0000-0001-5367-9748)
- Felix G. Kaps (ORCID: https://orcid.org/0009-0008-5806-7466)
- Xinzhong Chen (ORCID: https://orcid.org/0000-0002-6103-3848)
Institutions
- Universidade Federal de Minas Gerais (BR)
- Universidade Tecnológica Federal do Paraná (BR)
- Lawrence Berkeley National Laboratory (US)
- Universidade Estadual de Campinas (UNICAMP) (BR)
- Brookhaven National Laboratory (US)
- Helmholtz-Zentrum Dresden-Rossendorf (DE)
- Military Institute of Engineering (BR)
- Brazilian Synchrotron Light Laboratory (BR)
- Brazilian Center for Research in Energy and Materials (BR)
- Stony Brook University (US)
- Technische Universität Dresden (DE)
Publication Details
- Journal
- ACS Photonics
- Published
- 2024-09-20
- DOI
- https://doi.org/10.1021/acsphotonics.4c01249
- Citations
- 3
- Primary Topic
- Thermal Radiation and Cooling Technologies
- Type
- article
- Field-Weighted Citation Impact
- 0.78
Funders
- U.S. Department of Energy
- Deutsche Forschungsgemeinschaft
- Fundação de Amparo à Pesquisa do Estado de São Paulo
- Coordenação de Aperfeiçoamento de Pessoal de Nível Superior
- Bundesministerium für Bildung und Forschung
- Technische Universität Dresden
- Conselho Nacional de Desenvolvimento Científico e Tecnológico
- Fundação de Amparo à Pesquisa do Estado de Minas Gerais
- Universidade Federal de Minas Gerais
- Instituto Nacional de Ciência e Tecnologia em Nanomateriais de Carbono
- Centro Nacional de Pesquisa em Energia e Materiais
- Office of Science
- Laboratório Nacional de Luz Síncrotron