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Floquet–Mie Theory for Time‐Varying Dispersive Spheres

Ptitcyn, Grigorii 1; Lamprianidis, Aristeidis ORCID iD icon 1; Karamanos, Theodosios 1; Asadchy, Viktar; Alaee, Rasoul 1; Müller, Marvin ORCID iD icon 1; Albooyeh, Mohammad; Mirmoosa, Mohammad Sajjad; Fan, Shanhui; Tretyakov, Sergei; Rockstuhl, Carsten 1,2
1 Institut für Theoretische Festkörperphysik (TFP), Karlsruher Institut für Technologie (KIT)
2 Institut für Nanotechnologie (INT), Karlsruher Institut für Technologie (KIT)


Exploring the interaction of light with time-varying media is an intellectual challenge that, in addition to fundamental aspects, provides a pathway to multiple promising applications. Time modulation constitutes here a fundamental handle to control light on entirely different grounds. That holds particularly for complex systems simultaneously structured in space and time. However, a realistic description of time-varying materials requires considering their material dispersion. The combination thereof has barely been considered but is crucial since dispersion accompanies materials suitable for dynamic modulation. As a canonical scattering problem from which many general insights can be obtained, a self-consistent analytical theory of light scattering by a sphere made from a time-varying material exemplarily assumed to have a Lorentzian dispersion is developed and applied. The eigensolutions of Maxwell's equations in the bulk are discussed and a dedicated Mie theory is presented. The proposed theory is verified with full-wave simulations. Peculiar effects are disclosed, such as energy transfer from the time-modulation subsystem to the electromagnetic field, amplifying carefully structured incident fields. ... mehr

Verlagsausgabe §
DOI: 10.5445/IR/1000154666
Veröffentlicht am 19.01.2023
DOI: 10.1002/lpor.202100683
Zitationen: 9
Web of Science
Zitationen: 6
Zitationen: 9
Cover der Publikation
Zugehörige Institution(en) am KIT Institut für Nanotechnologie (INT)
Institut für Theoretische Festkörperphysik (TFP)
Karlsruhe School of Optics & Photonics (KSOP)
Publikationstyp Zeitschriftenaufsatz
Publikationsmonat/-jahr 03.2023
Sprache Englisch
Identifikator ISSN: 1863-8880, 1863-8899
KITopen-ID: 1000154666
HGF-Programm 43.32.02 (POF IV, LK 01) Designed Optical Materials
Erschienen in Laser and Photonics Reviews
Verlag Wiley-VCH Verlag
Band 17
Heft 3
Seiten Art.-Nr.: 2100683
Vorab online veröffentlicht am 29.12.2022
Schlagwörter light–matter interactions, Mie scattering, time-modulation, time-varying media
Nachgewiesen in Dimensions
Web of Science
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