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Nonlocality‐Enabled Pulse Management in Epsilon‐Near‐Zero Metamaterials

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cris.lastimport.scopus2024-02-12T20:03:25Z
dc.abstract.enUltrashort optical pulses are integral to probing various physical, chemical, and biological phenomena and feature in a whole host of applications, not least in data communications. Super- and subluminal pulse propagation and dispersion management (DM) are two of the greatest challenges in producing or counteracting modifications of ultrashort optical pulses when precise control over pulse characteristics is required. Progress in modern photonics toward integrated solutions and applications has intensified this need for greater control of ultrafast pulses in nanoscale dimensions. Metamaterials, with their unique ability to provide designed optical properties, offer a new avenue for temporal pulse engineering. Here an epsilon-near-zero metamaterial is employed, exhibiting strong nonlocal (spatial dispersion) effects, to temporally shape optical pulses. The authors experimentally demonstrate, over a wide bandwidth of tens of THz, the ability to switch from sub to superluminal and further to “backward” pulse propagation (±c/20) in the same metamaterial device by simply controlling the angle of illumination. Both the amplitude and phase of a 10 ps pulse can be controlled through DM in this subwavelength device. Shaping ultrashort optical pulses with metamaterials promises to be advantageous in laser physics, optical communications, imaging, and spectroscopy applications using both integrated and free-standing devices.
dc.affiliationUniwersytet Warszawski
dc.contributor.authorZayats, Anatoly V.
dc.contributor.authorNasir, Mazhar E.
dc.contributor.authorCórdova‐Castro, R. Margoth
dc.contributor.authorNicholls, Luke H.
dc.contributor.authorStefaniuk, Tomasz
dc.date.accessioned2024-01-25T13:51:16Z
dc.date.available2024-01-25T13:51:16Z
dc.date.issued2023
dc.description.financeNie dotyczy
dc.description.number34
dc.description.volume35
dc.identifier.doi10.1002/ADMA.202107023
dc.identifier.issn0935-9648
dc.identifier.urihttps://repozytorium.uw.edu.pl//handle/item/113870
dc.identifier.weblinkhttps://onlinelibrary.wiley.com/doi/pdf/10.1002/adma.202107023
dc.languageeng
dc.pbn.affiliationphysical sciences
dc.relation.ispartofAdvanced Materials
dc.rightsClosedAccess
dc.sciencecloudnosend
dc.titleNonlocality‐Enabled Pulse Management in Epsilon‐Near‐Zero Metamaterials
dc.typeJournalArticle
dspace.entity.typePublication