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Plasmonic excitations decay within femtoseconds, leaving non-thermal (often referred to as "hot") charge carriers behind that can be injected into molecular structures to trigger chemical reactions that are otherwise out of reach -- a…

材料科学 · 物理学 2025-01-28 Jakub Fojt , Paul Erhart , Christian Schäfer

A metal nanoparticle plasmon waveguide for electromagnetic energy transport utilizing dispersion engineering to dramatically increase lateral energy confinement via a two-dimensional pattern of Au dots on an optically thin Si membrane is…

This article reviews experimental work on the ultrafast electron dynamics in the topological surface state (TSS) of three-dimensional (3D) topological insulators (TIs) observed with time- and angle-resolved two-photon photoemission (2PPE).…

介观与纳米尺度物理 · 物理学 2021-02-03 Jens Güdde , Ulrich Höfer

The second harmonic generation is one of the most important applications of nonlinear effect, which has attracted great interests in nonlinear optics and microwave in the past decades. To the best of our knowledge, however, generating the…

光学 · 物理学 2015-05-14 Hao Chi Zhang , Yifeng Fan , Jian Guo , Xiaojian Fu , Lianming Li , Cheng Qian , Tie Jun Cui

We use mono-crystalline gold platelets with ultra-smooth surfaces and superior plasmonic properties to investigate the formation of interference patterns caused by surface plasmon polaritons (SPPs) with scattering-type scanning near-field…

We report the design, fabrication and characterization of a periodic grating of shallow rectangular grooves in a metallic film with the goal of maximizing the coupling efficiency of an extended plane wave (PW) of visible or near-infrared…

光学 · 物理学 2011-11-04 Stephan T. Koev , Amit Agrawal , Henri J. Lezec , Vladimir A. Aksyuk

The interference patterns of the surface plasmon polaritons(SPPs) on the metal surface from a "point" source are observed. These interference patterns come from the forward SPPs and the reflected one from the obstacles, such as…

Omni-directional light coupling to surface plasmon polariton (SPP) modes to make use of plasmon mediated near-field enhancement is challenging. We report possibility of near dispersion-less modes in structures with unpatterned…

The subwavelength focusing based on surface plasmon polaritons (SPP) has been widely explored in tapered metallic structures. However, the efficiency of energy localization is relatively weak, largely due to high propagation loss and strong…

光学 · 物理学 2021-07-15 Jie Xu , Xiaohua Deng , Hang Zhang , Chiaho Wu , Martijn Wubs , Sanshui Xiao , Linfang Shen

Frontal photopolymerization (FPP) provides a versatile method for the rapid fabrication of solid polymer network materials by exposing photosensitive molecules to light. Dimensional control of structures created by this process is crucial…

材料科学 · 物理学 2009-11-11 James A. Warren , Joao T. Cabral , Jack F. Douglas

We experimentally demonstrate a boosted in-plane thermal conduction by surface plasmon polaritons (SPPs) propagating along a thin Ti film on a glass substrate. Owing to a lossy nature of metal, SPPs can propagate over centimeter-scale…

应用物理 · 物理学 2023-05-03 Dong-min Kim , Sinwoo Choi , Jungwan Cho , Mikyung Lim , Bong Jae Lee

Surface phonon polaritons (SPhP) and surface plasmon polaritons (SPP), evanescent modes supported by media with negative permittivity, are a fundamental building block of nanophotonics. These modes are unmatched in terms of field…

In this article, the scattering of surface plasmon polaritons (SPPs) into photons at holes is investigated. A local, electrically excited source of SPPs using a scanning tunnelling microscope (STM) produces an outgoing circular plasmon wave…

Quantum emitters, such as q-dots and dye molecules, in the immediate vicinity of plasmonic nanostructures, resonantly excite surface plasmon-polaritons (SPPs) under incoherent pump. The efficiency in the excitation of SPPs increases as the…

量子物理 · 物理学 2017-06-28 Igor Protsenko , Shunping Zhang , Alexander Uskov , Xuewen Chen , Hongxing Xu

This report concerns with the theoretical studies of SPP Bloch waves in arrays of cylindrical holes. Most analytical solutions are simplified, approximate and fitted, thus leading to wrong design parameters. A rigorous analytical solution…

光学 · 物理学 2019-10-15 Amir Djalalian-Assl

Surface plasmons (SP) and their mediated effects have been widely used to manipulate micro- and nanoscale objects of dielectric and metallic nature. In this work, we show how SP excitation can be used to induce thermofluidic and…

光学 · 物理学 2024-07-02 Chaudhary Eksha Rani , Rahul Chand , Ashutosh Shukla , G V Pavan Kumar

The state of polarization (SOP) is an inherent property of the vectorial nature of light and a crucial parameter in a wide range of remote sensing applications. Nevertheless, the SOP is rather cumbersome to probe experimentally, as…

光学 · 物理学 2016-07-08 Anders Pors , Sergey I. Bozhevolnyi

We analyse recently measured nonlinear photoemission spectra from Ag surfaces that reveal resonances whose energies do not scale with the applied photon energy but stay pinned to multiples of bulk plasmon energy $\hbar\omega_p$ above the…

材料科学 · 物理学 2021-05-05 Dino Novko , Vito Despoja , Marcel Reutzel , Andi Li , Hrvoje Petek , Branko Gumhalter

Surface plasmon polaritons (SSP), moving along a smooth curved interface between two isotropic media with slowly varying dielectric permittivities and magnetic permeabilities and supporting SSP, are studied theoretically. Solutions of…

光学 · 物理学 2011-04-20 Maria V. Perel , Dmitry Yu. Zaika

Spatial modulation of electron beams is an essential tool for various applications such as nanolithography and imaging, yet its implementations are severely limited and inherently non-tunable. Conversely, light-driven electron spatial…

光学 · 物理学 2023-03-22 Shai Tsesses , Raphael Dahan , Kangpeng Wang , Ori Reinhardt , Guy Bartal , Ido Kaminer