2013
DOI: 10.1103/physrevlett.111.043601
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Quantum-Coherence-Enhanced Surface Plasmon Amplification by Stimulated Emission of Radiation

Abstract: We investigate surface plasmon amplification in a silver nanoparticle coupled to an externally driven threelevel gain medium, and show that quantum coherence significantly enhances the generation of surface plasmons. Surface plasmon amplification by stimulated emission of radiation is achieved in the absence of population inversion on the spasing transition, which reduces the pump requirements. The coherent drive allows us to control the dynamics, and holds promise for quantum control of nanoplasmonic devices.… Show more

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Cited by 95 publications
(101 citation statements)
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References 44 publications
(67 reference statements)
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“…Furthermore, atomic lattice quantum metamaterial provides a unique opportunity to dynamically tailor and manipulate the LDOS via weak Ω ≪ γ 0 (coherent) external fields and coherently manipulate the decay rate branching ratio that lies at the heart of quantum optics. Such control of radiative decay rate [44][45][46] and their branching ratio [47] is not only a subject of scientific interests but has recently gained new importance owing to potential applications [48][49][50][51][52]. To demonstrate this degree of freedom, we considered a probe atom trapped at one of the lattice sites.…”
Section: Metamaterials Exhibiting Hyperbolic Dispersion Have Been Promentioning
confidence: 99%
“…Furthermore, atomic lattice quantum metamaterial provides a unique opportunity to dynamically tailor and manipulate the LDOS via weak Ω ≪ γ 0 (coherent) external fields and coherently manipulate the decay rate branching ratio that lies at the heart of quantum optics. Such control of radiative decay rate [44][45][46] and their branching ratio [47] is not only a subject of scientific interests but has recently gained new importance owing to potential applications [48][49][50][51][52]. To demonstrate this degree of freedom, we considered a probe atom trapped at one of the lattice sites.…”
Section: Metamaterials Exhibiting Hyperbolic Dispersion Have Been Promentioning
confidence: 99%
“…The presence of gain in active structures has been used to compensate for absorption loss, promoting the practical use of quantum coherence in metamaterials and photonic crystals to a wider domain. Such ideas have given the birth of novel devices like nanolaser [44][45][46] and recently coherence effects have also been reported [19,20] in such configurations. Incorporating microwave along with laser in such devices can bring additional degree of freedom for enhancing the gain and controlling resonances.…”
Section: Resultsmentioning
confidence: 99%
“…Such systems can exhibit quantum coherence and interference effects, e.g., enhanced nonlinear effects [1], electromagnetically induced transparency (EIT) [2][3][4], giant Kerr nonlinearity [5][6][7], lasing without inversion [8][9][10], efficient nonlinear frequency conversions [11,12], coherence Raman scattering enhancement via maximum coherence in atoms [13] and molecules [14], enhanced lasing [15,16], coherent Raman umklappscattering [17], photodesorption [18] to name a few. Recently quantum coherence effects has been applied to a new domain on plasmonics and shown to benefit nanophotonics [19,20].…”
Section: Introductionmentioning
confidence: 99%
“…The study of the complex interaction between localized surface plasmons supported by metallic nanoparticles and quantum emitters is undertaking a great deal of both theoretical and experimental research [1]- [3]. Simple analytical solutions exist for canonical situations like a point dipole near a spherical nanoparticle, which have facilitated the design of experiments so far.…”
Section: Introductionmentioning
confidence: 99%