Plasmon-enhanced light–matter interactions and applications

Yu, Hua; Peng, Yusi; Yang, Yong; Li, Zhiyuan

doi:10.1038/s41524-019-0184-1

Cited by 400 publications

(312 citation statements)

References 153 publications

Supporting

Mentioning

307

Contrasting

Unclassified

Order By: Relevance

“…1,2 These include optoelectronics, [3][4][5] photocatalysis, [6][7][8][9] bio/chemical sensing, [10][11][12][13][14][15][16][17][18] organic photovoltaics (OPVs), [19][20][21][22][23][24] and plasmonics. 1,5,18,[25][26][27] For example, molecule-surface coupling can modify both the energies and intensities of the single-particle spectra, electronic excitations, and phonons, thereby affecting the optical absorption of the molecule. These effects may be exploited to tailor the optoelectronic properties of the molecule via the substrate's screening interactions.…”

Section: Introductionmentioning

confidence: 99%

Tailoring a Molecule’s Optical Absorbance Using Surface Plasmonics

Mowbray

Despoja

2019

J. Phys. Chem. C

View full text Add to dashboard Cite

Understanding the interaction of light with molecules physisorbed on substrates is a fundamental problem in photonics, with applications in biosensing, photovoltaics, photocatalysis, plasmonics, and nanotechnology. However, the design of novel functional materials in silico is severely hampered by the lack of robust and computationally efficient methods for describing both molecular absorbance and screening on substrates. Here we employ our hybrid G 0 [W 0 + ∆W]-BSE implementation, which incorporates the substrate via its screening ∆W at both the quasiparticle G 0 W 0 level and when solving the Bethe-Salpeter equation (BSE). We show this method can be used to both efficiently and accurately describe the absorption spectra of physisorbed molecules on metal substrates and thereby tailor the molecule's absorbance by altering the surface plasmon's energy. Specifically, we investigate how the optical absorption spectra of three prototypical π-conjugated molecules: benzene (C 6 H 6 ), terrylene (C 30 H 16 ) and fullerene (C 60 ), depends on the Wigner-Seitz radius r s of the metallic substrate. To gain further understanding of the light-molecule/substrate interaction, we also study the bright exciton's electron and hole densities and their interactions with infrared active vibrational modes. Our results show that (1) benzene's bright E 1 1u exciton at 7.0 eV, whose energy is insensitive to changes in r s , could be relevant for photocatalytic dehydrogenation and polymerization reactions, (2) terrylene's bright B 3u exciton at 2.3 eV hybridizes with the surface plasmon, allowing the tailoring of the excitonic energy and optical activation of a surface plasmon-like exciton, and (3) fullerene's π − π * bright and dark excitons at 6.4 and 6.8 eV hybridize with the surface plasmon, resulting in the tailoring of their excitonic energy and the activation of both a surface plasmon-like exciton and a dark quadrupolar mode via symmetry breaking by the substrate. This work demonstrates how a proper description of interfacial light-molecular/substrate interactions enables the prediction, design, and optimization of technologically relevant phenomena in silico. arXiv:1910.05434v1 [cond-mat.mes-hall]

show abstract

Section: Introductionmentioning

confidence: 99%

Tailoring a Molecule’s Optical Absorbance Using Surface Plasmonics

Mowbray

Despoja

2019

J. Phys. Chem. C

View full text Add to dashboard Cite

show abstract

“…Surface plasmons—the phenomena where electromagnetic waves are coupled onto the surface of an electrical conductor to generate a spatially localized resonance—are the subject of intense study . The plasmon itself may be propagating, in this case termed a surface plasmon polariton (SPP), or it may be a standing wave, usually described as a localized surface plasmon resonance (LSPR) …”

Section: Introductionmentioning

confidence: 99%

“…The motivations include: 1)There is a considerable amplification of the electromagnetic wave's electric field in the vicinity of the plasmon. This can be used to enhance fluorescence, nonlinear optical emission, upconversion, or a Raman emission 2)Propagation of the plasmon in the case of an SPP offers the prospect of signal processing and new types of optical devices …”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

The Quest for Zero Loss: Unconventional Materials for Plasmonics

2019

View full text Add to dashboard Cite

There has been an ongoing quest to optimize the materials used to build plasmonic devices: first the elements were investigated, then alloys and intermetallic compounds, later semiconductors were considered, and, most recently, there has been interest in using more exotic materials such as topological insulators and conducting oxides. The quality of the plasmon resonances in these materials is closely correlated with their structure and properties. In general gold and silver are the most commonly specified materials for these applications but they do have weaknesses. Here, it is shown how, in specific circumstances, the selection of certain other materials might be more useful. Candidate alternatives include TixN, VO2, Al, Cu, Al‐doped ZnO, and Cu–Al alloys. The relative merits of these choices and the many pitfalls and subtle problems that arise are discussed, and a frank perspective on the field is provided.

show abstract

“…Polaritonic and plasmonic excitation boost nonlinearities due to strong coupling of surface-polaritonic waves(SPWs) to interface, giant surface-field confinement [6,7], anomalous spectral responses to the surface optical properties and ultra-fast temporal action of plasmon excitation to the polarization of hybrid interface [1]. Recent investigations reveal excitation and propagation of nonlinear surface polaritonic(plasmonic) waves and explore applications to various nanoplasmonic systems [8] such as efficient high-harmonic generation [9,10], ultra-fast dynamics of SPWs [11], ultra-short pulse focusing [12,13], light spin coupled to plasmon orbit [14] and frequency-comb generation [15].…”

Section: Introductionmentioning

confidence: 99%

Surface-polaritonic phase singularities and multimode polaritonic frequency combs via dark rogue-wave excitation in hybrid plasmonic waveguide

et al. 2020

View full text Add to dashboard Cite

Material characteristics and input-field specifics limit controllability of nonlinear electromagneticfield interactions. As these nonlinear interactions could be exploited to create strongly localized bright and dark waves, such as nonlinear surface polaritons, ameliorating this limitation is important. We present our approach to amelioration, which is based on a surface-polaritonic waveguide reconfiguration that enables excitation, propagation and coherent control of coupled dark rogue waves having orthogonal polarizations. Our control mechanism is achieved by finely tuning laser-field intensities and their respective detuning at the interface between the atomic medium and the metamaterial layer. In particular, we utilize controllable electromagnetically induced transparency windows commensurate with surface-polaritonic polarization-modulation instability to create symmetric and asymmetric polaritonic frequency combs associated with dark localized waves. Our method takes advantage of an atomic self-defocusing nonlinearity and dark rogue-wave propagation to obtain a sufficient condition for generating phase singularities. Underpinning this method is our theory which incorporates dissipation and dispersion due to the atomic medium being coupled to nonlinear surface-polaritonic waves. Consequently, our waveguide configuration acts as a bimodal polaritonic frequency-comb generator and high-speed phase rotator, thereby opening prospects for phase singularities in nanophotonic and quantum communication devices.field [18]. In the past few decades, experimental and theoretical investigations(for an intuitive explanation of dealing with plasmonic loss for waveguide application, see [19]) report stable propagation of linear and nonlinear SPWs employing ultra-low loss metallic-type layers such as single-crystal [20] and mono-crystal [21] metallic film, structured Fano metamaterials [22], semiconductor metamaterials [23] and superconducting metamaterials [24]. These investigations reveal that plasmonic excitation and stable propagation need minimal metallic nanostructure roughness [25]. Therefore, polaritonic frequency combs, and generally space-time control of nonlinear SPWs, are unfortunately challenging due to material limitations and driving field characteristics [26-28].Propagation of an optical pulse in nonlinear media leads to the appearance of strongly localized bright and dark waves such as soliton [29], rogue waves and breathers in nearly conservative systems [30]. Bright rogue waves and breathers are highly localized nonlinear solitary waves with oscillatory amplitudes [31,32]. These waves are valuable for their applications to phase and intensity modulation schemes [33,34], as well as the formation of bound states and molecule-like behavior [35]. More generally, dissipative rogue waves and breathers [36] have potential applications to nonlinear systems such as mode-locked lasers [37] and frequencycomb generators [38]. By contrast, dark rogue waves were only observed during multimode polarized light propagation ...

show abstract

Plasmon-enhanced light–matter interactions and applications

Cited by 400 publications

References 153 publications

Tailoring a Molecule’s Optical Absorbance Using Surface Plasmonics

Tailoring a Molecule’s Optical Absorbance Using Surface Plasmonics

The Quest for Zero Loss: Unconventional Materials for Plasmonics

Surface-polaritonic phase singularities and multimode polaritonic frequency combs via dark rogue-wave excitation in hybrid plasmonic waveguide

Contact Info

Product

Resources

About