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| 1. | Aigner, Andreas; Ligmajer, Filip; Rovenská, Katarína; Holobrádek, Jakub; Idesová, Beáta; Maier, Stefan A; Tittl, Andreas; de Menezes, Leonardo S: Engineering of Active and Passive Loss in High-Quality-Factor Vanadium Dioxide-Based BIC Metasurfaces. In: Nano Letters, 2024, ISSN: 15306984, (Cited by: 0; All Open Access, Hybrid Gold Open Access). (Type: Journal Article | Abstract | Links | BibTeX) @article{Aigner2024, title = {Engineering of Active and Passive Loss in High-Quality-Factor Vanadium Dioxide-Based BIC Metasurfaces}, author = {Andreas Aigner and Filip Ligmajer and Katarína Rovenská and Jakub Holobrádek and Beáta Idesová and Stefan A Maier and Andreas Tittl and Leonardo de S. Menezes}, url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85202647685&doi=10.1021%2facs.nanolett.4c01703&partnerID=40&md5=a06760cb7b7f4e006a623ff6232c4499}, doi = {10.1021/acs.nanolett.4c01703}, issn = {15306984}, year = {2024}, date = {2024-01-01}, journal = {Nano Letters}, publisher = {American Chemical Society}, abstract = {Active functionalities of metasurfaces are of growing interest in nanophotonics. The main strategy employed to date is spectral resonance tuning affecting predominantly the far-field response. However, this barely influences other essential resonance properties like near-field enhancement, signal modulation, quality factor, and absorbance, which are all vital for numerous applications. Here we introduce an active metasurface approach that combines temperature-tunable losses in vanadium dioxide with far-field coupling tunable symmetry-protected bound states in the continuum. This method enables exceptional precision in independently controlling both radiative and nonradiative losses. Consequently, it allows for the adjustment of both the far-field response and, notably, the near-field characteristics like local field enhancement and absorbance. We experimentally demonstrate continuous tuning from under- through critical- to overcoupling, achieving quality factors of 200 and a relative switching contrast of 78%. Our research marks a significant step toward highly tunable metasurfaces, controlling both near- and far-field properties. © 2024 The Authors. Published by American Chemical Society.}, note = {Cited by: 0; All Open Access, Hybrid Gold Open Access}, keywords = {}, pubstate = {published}, tppubtype = {article} } Active functionalities of metasurfaces are of growing interest in nanophotonics. The main strategy employed to date is spectral resonance tuning affecting predominantly the far-field response. However, this barely influences other essential resonance properties like near-field enhancement, signal modulation, quality factor, and absorbance, which are all vital for numerous applications. Here we introduce an active metasurface approach that combines temperature-tunable losses in vanadium dioxide with far-field coupling tunable symmetry-protected bound states in the continuum. This method enables exceptional precision in independently controlling both radiative and nonradiative losses. Consequently, it allows for the adjustment of both the far-field response and, notably, the near-field characteristics like local field enhancement and absorbance. We experimentally demonstrate continuous tuning from under- through critical- to overcoupling, achieving quality factors of 200 and a relative switching contrast of 78%. Our research marks a significant step toward highly tunable metasurfaces, controlling both near- and far-field properties. © 2024 The Authors. Published by American Chemical Society. |
References (last update: Sept. 23, 2024):
2024 |
Aigner, Andreas; Ligmajer, Filip; Rovenská, Katarína; Holobrádek, Jakub; Idesová, Beáta; Maier, Stefan A; Tittl, Andreas; de Menezes, Leonardo S Engineering of Active and Passive Loss in High-Quality-Factor Vanadium Dioxide-Based BIC Metasurfaces Journal Article Nano Letters, 2024, ISSN: 15306984, (Cited by: 0; All Open Access, Hybrid Gold Open Access). Abstract | Links | BibTeX | Tags: oxide; vanadium; Active metasurface; Bound state in the continuum; Bound-states; Loss tunability; Metasurface; Near fields; Near-field tunability; Tunabilities; Vanadium dioxide; article; controlled study; nanophotonics; temperature; Nanophotonics @article{Aigner2024, title = {Engineering of Active and Passive Loss in High-Quality-Factor Vanadium Dioxide-Based BIC Metasurfaces}, author = {Andreas Aigner and Filip Ligmajer and Katarína Rovenská and Jakub Holobrádek and Beáta Idesová and Stefan A Maier and Andreas Tittl and Leonardo de S. Menezes}, url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85202647685&doi=10.1021%2facs.nanolett.4c01703&partnerID=40&md5=a06760cb7b7f4e006a623ff6232c4499}, doi = {10.1021/acs.nanolett.4c01703}, issn = {15306984}, year = {2024}, date = {2024-01-01}, journal = {Nano Letters}, publisher = {American Chemical Society}, abstract = {Active functionalities of metasurfaces are of growing interest in nanophotonics. The main strategy employed to date is spectral resonance tuning affecting predominantly the far-field response. However, this barely influences other essential resonance properties like near-field enhancement, signal modulation, quality factor, and absorbance, which are all vital for numerous applications. Here we introduce an active metasurface approach that combines temperature-tunable losses in vanadium dioxide with far-field coupling tunable symmetry-protected bound states in the continuum. This method enables exceptional precision in independently controlling both radiative and nonradiative losses. Consequently, it allows for the adjustment of both the far-field response and, notably, the near-field characteristics like local field enhancement and absorbance. We experimentally demonstrate continuous tuning from under- through critical- to overcoupling, achieving quality factors of 200 and a relative switching contrast of 78%. Our research marks a significant step toward highly tunable metasurfaces, controlling both near- and far-field properties. © 2024 The Authors. Published by American Chemical Society.}, note = {Cited by: 0; All Open Access, Hybrid Gold Open Access}, keywords = {oxide; vanadium; Active metasurface; Bound state in the continuum; Bound-states; Loss tunability; Metasurface; Near fields; Near-field tunability; Tunabilities; Vanadium dioxide; article; controlled study; nanophotonics; temperature; Nanophotonics}, pubstate = {published}, tppubtype = {article} } Active functionalities of metasurfaces are of growing interest in nanophotonics. The main strategy employed to date is spectral resonance tuning affecting predominantly the far-field response. However, this barely influences other essential resonance properties like near-field enhancement, signal modulation, quality factor, and absorbance, which are all vital for numerous applications. Here we introduce an active metasurface approach that combines temperature-tunable losses in vanadium dioxide with far-field coupling tunable symmetry-protected bound states in the continuum. This method enables exceptional precision in independently controlling both radiative and nonradiative losses. Consequently, it allows for the adjustment of both the far-field response and, notably, the near-field characteristics like local field enhancement and absorbance. We experimentally demonstrate continuous tuning from under- through critical- to overcoupling, achieving quality factors of 200 and a relative switching contrast of 78%. Our research marks a significant step toward highly tunable metasurfaces, controlling both near- and far-field properties. © 2024 The Authors. Published by American Chemical Society. |