ArticleAdvanced science (Weinheim, Baden-Wurttemberg, Germany)2020
Transient Electronic Depletion and Lattice Expansion Induced Ultrafast Bandedge Plasmons.
Article in Advanced science (Weinheim, Baden-Wurttemberg, Germany), 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.
What it found
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Who cites it
7 citing papers in PubMed, 23 citations in OpenAlex.
- Self-Organized Nanoplasmonic Artificial Leaf for Hot-Carrier Bioelectronic Interfaces.Nature photonics · 2026Article
- Ultrafast Infrared-to-Visible Photon Upconversion on Plasmon/TiOThe journal of physical chemistry letters · 2023Article
- Broadband Transient Response and Wavelength-Tunable Photoacoustics in Plasmonic Hetero-nanoparticles.Nano letters · 2023Article
- Surface-Plasmon-Assisted Growth, Reshaping and Transformation of Nanomaterials.Nanomaterials (Basel, Switzerland) · 2022Review
- A self-supported ultrathin plasmonic film for ultrafast optical switching.Nanoscale advances · 2022Article
- Optical Fiber Delivered Ultrafast Plasmonic Optical Switch.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2021Article
- Transient Electronic Depletion and Lattice Expansion Induced Ultrafast Bandedge Plasmons.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2020Article
Corrections and comments
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Authors and funding
7 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Strong optical excitation of plasmonic nanostructures may induce simultaneous interband and intraband electronic transitions. However, interaction mechanisms between interband, intraband, and plasmon-band processes have not been thoroughly understood. In particular, optical-heating-induced lattice expansion, which definitely leads to shift of the Fermi level, has not been taken into account in plasmonic studies. Here, it is shown that plasmonic bandedge shift is responsible for the optical modulation on the boundary between plasmonic electron oscillation and interband transitions via investigations on gold nanofilms and nanoparticles. Strong optical excitation induces transient depletion of the conduction band just below the Fermi level through intraband transitions, while the subsequent lattice heating induces transient thermal expansion and hence lowers the Fermi level. Both effects reduce the threshold for interband transitions and therefore push the plasmonic bandedge to the red. These discoveries introduce a first correlation between plasmonic response and optical excitation induced thermal expansion of lattices. The revealed Fermi-level adjustment mechanism allows alignment of electronic levels at the metal-semiconductor interfaces, which applies to all conductive materials and renders reliable physics for the design of plasmonic or optoelectronic devices.
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Registered trials
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