Boron nitride nanoresonators for phonon-enhanced molecular vibrational spectroscopy at the strong coupling limit
| Autor: | Francisco Javier Alfaro-Mozaz, Irene Dolado, Marta Autore, Luis E. Hueso, Rainer Hillenbrand, Ainhoa Atxabal, Fèlix Casanova, Javier Aizpurua, Alexey Y. Nikitin, Pablo Alonso-González, Ruben Esteban, Saül Vélez, Peining Li |
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| Přispěvatelé: | European Research Council, Diputación Foral de Guipúzcoa, Eusko Jaurlaritza, Ministerio de Economía y Competitividad (España), European Commission |
| Rok vydání: | 2017 |
| Předmět: |
Materials science
Infrared Phonon Nanophotonics Infrared spectroscopy FOS: Physical sciences Physics::Optics 02 engineering and technology 01 natural sciences Phonon polaritons Article Surface-enhanced infrared absorption spectroscopy phonon polaritons 0103 physical sciences strong coupling Polariton surface-enhanced infrared absorption spectroscopy Fourier transform infrared spectroscopy 010306 general physics Spectroscopy SEIRA Plasmon Strong coupling business.industry boron nitride 021001 nanoscience & nanotechnology Atomic and Molecular Physics and Optics 3. Good health Electronic Optical and Magnetic Materials Boron nitride Optoelectronics 0210 nano-technology business Optics (physics.optics) Physics - Optics |
| Zdroj: | Light: Science & Applications Scopus Light: Science & Applications, 7 Digital.CSIC. Repositorio Institucional del CSIC instname Light, Science & Applications RUO. Repositorio Institucional de la Universidad de Oviedo |
| ISSN: | 2047-7538 |
| DOI: | 10.1038/lsa.2017.172 |
| Popis: | Enhanced light-matter interactions are the basis of surface-enhanced infrared absorption (SEIRA) spectroscopy, and conventionally rely on plasmonic materials and their capability to focus light to nanoscale spot sizes. Phonon polariton nanoresonators made of polar crystals could represent an interesting alternative, since they exhibit large quality factors, which go far beyond those of their plasmonic counterparts. The recent emergence of van der Waals crystals enables the fabrication of high-quality nanophotonic resonators based on phonon polaritons, as reported for the prototypical infrared-phononic material hexagonal boron nitride (h-BN). In this work we use, for the first time, phonon-polariton-resonant h-BN ribbons for SEIRA spectroscopy of small amounts of organic molecules in Fourier transform infrared spectroscopy. Strikingly, the interaction between phonon polaritons and molecular vibrations reaches experimentally the onset of the strong coupling regime, while numerical simulations predict that vibrational strong coupling can be fully achieved. Phonon polariton nanoresonators thus could become a viable platform for sensing, local control of chemical reactivity and infrared quantum cavity optics experiments. We also acknowledge support from the European Commission under the Graphene Flagship (GrapheneCore1, Grant no. 696656), the Marie SklodowskaCurie individual fellowship (SGPCM-705960), the Spanish Ministry of Economy and Competitiveness (Maria de Maetzu Units of Excellence Programme MDM-2016-0618 and national projects FIS2014-60195-JIN, MAT2014-53432- C5-4-R, MAT2015-65525-R, MAT2015-65159-R, FIS2016-80174-P, MAT2017- 88358-C3-3-R), the Basque government (PhD fellowship PRE-2016-1-0150, PRE-2016-2-0025), the Department of Industry of the Basque Government (ELKARTEK project MICRO4FA), the Regional Council of Gipuzkoa (project no. 100/16) and the ERC starting grant 715496, 2DNANOPTICA. |
| Databáze: | OpenAIRE |
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