Pregled bibliografske jedinice broj: 1189577
Ultrafast Plasmonic Response Ensured by Atomic Scale Confinement
Ultrafast Plasmonic Response Ensured by Atomic Scale Confinement // ACS Photonics, 9 (2022), 3; 837-845 doi:10.1021/acsphotonics.1c01454 (međunarodna recenzija, članak, znanstveni)
CROSBI ID: 1189577 Za ispravke kontaktirajte CROSBI podršku putem web obrasca
Naslov
Ultrafast Plasmonic Response Ensured by Atomic
Scale Confinement
Autori
Tanaka, Shunsuke ; Yoshida, Tatsuya ; Watanabe, Kazuya ; Matsumoto, Yoshiyasu ; Yasuike, Tomokazu ; Novko, Dino ; Petrović, Marin ; Kralj, Marko
Izvornik
ACS Photonics (2330-4022) 9
(2022), 3;
837-845
Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni
Ključne riječi
surface plasmon ; femtosecond spectroscopy ; graphene ; nonlinear spectroscopy
Sažetak
Exploring the quantum effects in plasmonic responses has attracted growing interest during the past decade. Extreme downsizing of nanoparticles and interparticle gaps is promising for altering the nature of plasmonic resonances through the spillover and tunneling of electronic wave functions at the metallic nanocomposites. While such quantum effects have been studied in the frequency domain in the past, their manifestation in the ultrafast time domain remains to be elucidated. In this work, we demonstrate that the quantum effect significantly alters the ultrafast plasmonic response by studying a novel atomically thin multilayer structure of Cs/graphene/Cs/Ir(111). The atomic scale confinement leads to a reduction in the damping rate of the surface plasmon–polariton that gives a strong transient optical response within several tens of femtoseconds. In addition, the localized excitation nonthermally launches coherent surface phonons of the composite, exhibiting the plasmon band modulation in the THz frequency range. These novel findings will pave the way for tailoring plasmon-induced processes by the atomic-scale fabrication.
Izvorni jezik
Engleski
Znanstvena područja
Fizika
POVEZANOST RADA
Projekti:
IP-2016-06-3211 - Optička svojstva heterostruktura dihalkogenida prijelaznih metala (OhTMD) (Kralj, Marko, HRZZ - 2016-06) ( CroRIS)
HRZZ-UIP-2019-04-6869 - Istraživanje fononski posredovanih procesa u kvazi-dvodimenzionalnim materijalima (SyPhonAss_Q2D) (Novko, Dino, HRZZ ) ( CroRIS)
Ustanove:
Institut za fiziku, Zagreb
Citiraj ovu publikaciju:
Časopis indeksira:
- Current Contents Connect (CCC)
- Web of Science Core Collection (WoSCC)
- Science Citation Index Expanded (SCI-EXP)
- SCI-EXP, SSCI i/ili A&HCI
- Scopus