KIT | KIT-Bibliothek | Impressum | Datenschutz

Unleashing infinite momentum bandgap using resonant material systems

Wang, X. 1,2; Garg, P. ORCID iD icon 1; Mirmoosa, M. S.; Lamprianidis, A. G. 1; Rockstuhl, C. 1,2; Asadchy, V. S.
1 Institut für Theoretische Festkörperphysik (TFP), Karlsruher Institut für Technologie (KIT)
2 Institut für Nanotechnologie (INT), Karlsruher Institut für Technologie (KIT)

Abstract:

The realization of photonic time crystals is a major opportunity but also comes with significant challenges. The most pressing one, potentially, is the requirement for a substantial modulation strength in the material properties to create a noticeable momentum bandgap. Reaching that noticeable bandgap in optics is highly demanding with current, and possibly also future, material platforms since their modulation strength is small by tendency. Here we demonstrate that by introducing temporal variations in a resonant material, the momentum bandgap can be drastically expanded, potentially approaching infinity with modulation strengths in reach with known low-loss materials and realistic laser pump powers. The resonance can emerge from an intrinsic material resonance or a suitably spatially structured material supporting a structural resonance. Our concept is validated for resonant bulk media and optical metasurfaces and paves the way toward the first experimental realizations of photonic time crystals.


Volltext §
DOI: 10.5445/IR/1000163749
Veröffentlicht am 03.11.2023
Originalveröffentlichung
DOI: 10.48550/arXiv.2310.02786
Dimensions
Zitationen: 2
Cover der Publikation
Zugehörige Institution(en) am KIT Institut für Nanotechnologie (INT)
Institut für Theoretische Festkörperphysik (TFP)
Publikationstyp Forschungsbericht/Preprint
Publikationsjahr 2023
Sprache Englisch
Identifikator KITopen-ID: 1000163749
Verlag arxiv
Umfang 9 S.
Schlagwörter Optics (physics.optics)
Nachgewiesen in Dimensions
arXiv
KIT – Die Forschungsuniversität in der Helmholtz-Gemeinschaft
KITopen Landing Page