Perfect coupling of light to surface plasmons by coherent absorption

Abstract

We show theoretically that coherent light can be completely absorbed in a two-dimensional or three-dimensional metallic nanostructure by matching the frequency and field pattern of an incident wave to that of a localized surface plasmon resonance. This can be regarded as critical coupling to a nano-plasmonic cavity, or as an extension of the concept of time-reversed laser to the spaser. Light scattering is completely suppressed via impedance matching to the nano-objects, and the energy of incoming wave is fully transferred to surface plasmon oscillations and evanescent electromagnetic fields. Perfect coupling of light to nanostructures has potential applications to nanoscale probing as well as background-free spectroscopy and ultrasensitive detection of environmental changes.

10 pages, 4 figures

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Cited by in corpus (55)

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• Coherent control of photocurrent in a strongly scattering photoelectrochemical system
• Tunable and Broadband Coherent Perfect Absorption by Ultrathin Black Phosphorus Metasurfaces
• Progress toward high-Q perfect absorption: A Fano antilaser
• Broadband subwavelength focusing of light using a passive drain
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• New scattering features of quaternionic point interaction in non-Hermitian quantum mechanics
• Geometric interpretations for resonances of plasmonic nanoparticles
• Polaromechanics: cavity-magnon polaritons strongly coupled to phonons
• Reflectionless excitation of arbitrary photonic structures: A general theory
• Angular-asymmetric transmitting metasurface and splitter for acoustic wave: a combining of the Coherent Perfect Absorber and Laser
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• Quantum Coherent Absorption of Squeezed Light
• Deconfinement to Confinement as PT phase transition
• Coherent virtual absorption for discretized light
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• Driving plasmonic nanoantennas at perfect impedance matching using generalized coherent perfect absorption
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• Design of a hybrid silicon-plasmonic co-propagant integrated coherent perfect absorber
• Linear and nonlinear coherent perfect absorbers on simple layers
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• Broadband Control on Scattering Events with Interferometric Coherent Waves
• High-order localized spoof surface plasmon resonances and experimental verifications
• Optimizing Nanoparticle Designs to Reach Ideal Light Absorption
• Linear control of light scattering with multiple coherent light excitation
• Study of Coherent Perfect Absorption Using Gaussian Beam in a Composite Medium
• Ultrathin Semiconductor Perfect Light Absorbers with High Spectral, Polarization, and Angle Selectivity for Arbitrary Wavelengths