Plasmonic Su-Schrieffer-Heeger chains with strong coupling amplitudes
Fuente:
arXiv
Salvato in:
| Autori principali: | , , , , , , , , |
|---|---|
| Natura: | Preprint |
| Pubblicazione: |
2025
|
| Soggetti: | |
| Accesso online: | |
| Tags: |
Aggiungi Tag
Nessun Tag, puoi essere il primo ad aggiungerne!!
|
| _version_ | 1866912307501596672 |
|---|---|
| author | Schurr, Benedikt Hensen, Matthias Brenneis, Luisa Kessler, Philipp Qin, Jin Lisinetskii, Victor Thomale, Ronny Brixner, Tobias Hecht, Bert |
| author_facet | Schurr, Benedikt Hensen, Matthias Brenneis, Luisa Kessler, Philipp Qin, Jin Lisinetskii, Victor Thomale, Ronny Brixner, Tobias Hecht, Bert |
| contents | Plasmonic many-particle systems with precisely tuned resonances and coupling strengths can exhibit emergent collective properties governed by universal principles. In one-dimensional chains with alternating couplings, known as Su-Schrieffer-Heeger (SSH) systems, this includes the formation of topologically protected mid-gap modes whose intensities localize at the chain's ends. This subwavelength localization at optical frequencies is crucial for achieving strong coupling of mid-gap modes to two-level systems under ambient conditions, extending topological protection to hybrid light-matter states. Here, we have fabricated SSH chains from plasmonic nanoslit resonators with strong inter-resonator coupling. The alternating distance between the nanoslit resonators is controlled with sub-nanometer precision, enabling accurate prediction and experimental observation of topologically protected mid-gap modes via photoemission electron microscopy (PEEM). Our results open the path towards experimental realizations of two-dimensional photonic metasurfaces exhibiting higher-order topological modes that can be strongly coupled to single emitters and quantum materials at ambient conditions. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2504_02603 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Plasmonic Su-Schrieffer-Heeger chains with strong coupling amplitudes Schurr, Benedikt Hensen, Matthias Brenneis, Luisa Kessler, Philipp Qin, Jin Lisinetskii, Victor Thomale, Ronny Brixner, Tobias Hecht, Bert Optics Mesoscale and Nanoscale Physics Plasmonic many-particle systems with precisely tuned resonances and coupling strengths can exhibit emergent collective properties governed by universal principles. In one-dimensional chains with alternating couplings, known as Su-Schrieffer-Heeger (SSH) systems, this includes the formation of topologically protected mid-gap modes whose intensities localize at the chain's ends. This subwavelength localization at optical frequencies is crucial for achieving strong coupling of mid-gap modes to two-level systems under ambient conditions, extending topological protection to hybrid light-matter states. Here, we have fabricated SSH chains from plasmonic nanoslit resonators with strong inter-resonator coupling. The alternating distance between the nanoslit resonators is controlled with sub-nanometer precision, enabling accurate prediction and experimental observation of topologically protected mid-gap modes via photoemission electron microscopy (PEEM). Our results open the path towards experimental realizations of two-dimensional photonic metasurfaces exhibiting higher-order topological modes that can be strongly coupled to single emitters and quantum materials at ambient conditions. |
| title | Plasmonic Su-Schrieffer-Heeger chains with strong coupling amplitudes |
| topic | Optics Mesoscale and Nanoscale Physics |
| url | https://arxiv.org/abs/2504.02603 |