Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Log inSign up
Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Blog
Job Board
Q3AS

© 2026 Aqora Quantum S.A.S.

TermsPrivacyLegal Notice

arXiv:physics/0411155

Anomalous absorption of light by a nanoparticle and bistability in the presence of resonant fluorescent atom

G. N. Nikolaev

Published Nov 17, 2004• 0 citations
arXivHTMLPDF

Abstract

Absorption of light by a nanoparticle in the presence of resonant atom and fluorescence of the latter are theoretically investigated. It is shown, that absorption of light by a nanoparticle can be increased by several orders because of presence of atom. It is established, that optical bistability in such system is possible.
DOI
10.48550/arxiv.physics/0411155

Related papers

Optical bistability of the nanoparticle surrounded by resonant atoms

G. N. Nikolaev

Absorption of light by nanoparticle in the presence of resonant atom is theoretically investigated. Both the direct absorption of light by the nanoparticle and the absorption due to cascade energy transfer from light to the atom and then to the nanoparticle are taken into account. It is shown, that the cascade energy transfer is proportional to the imaginary part of the Green's photon function in this conditions. The Green's function is calculated in the quasi static approximation because of smallness both the size of the nanoparticle and the distance between it and the atom. The resonant atom is described in the generalized two-level model taking into account the direction of the atomic dipole moment. It is shown, that the light absorption by the nanoparticle can be increased by several orders because of presence of the atom. In the case when the nanoparticle is surrounded by collection of atoms it is found that the optical bistability is possible in this system. The range of parameters leading to the bistable behavior is found.

Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE•Apr 6, 2007•0 citations

Efficient transfer of light energy to a nanoparticle by means of a resonance atomic lens

G. N. Nikolaev

A cascade transfer of light energy to a resonance atom situated near a spherical nanoparticle and then, by a nonradiative mechanism, to the nanoparticle itself is considered. It is established that the efficiency of the cascade transfer essentially depends on the frequency and polarization of light, on the distance between the atom and the particle, on the optical properties of the particle, and on the time conditions of radiation. The rate of light absorption by a metal nanoparticle via cascade energy transfer may be 10 4 –10 5 times higher than the direct absorption of light by a nanoparticle. For a fixed frequency of light, the cascade transfer of energy is a sharply selective function of the distance between the atom and the particle (the resonance width is about 10 −2 of the particle radius). Atomic fluorescence exhibits similar behavior. This feature can form the basis for a new method of optical scanning microscopy and location and localization of atoms near the surface of a particle.

Journal of Experimental and Theoretical Physics•Mar 1, 2006•1 citation

Optical bistability in the scattering and absorption of light from nonlinear microparticles

K. M. Leung

Intrinsic optical bistability in the scattering and absorption of light from Rayleigh-particle-sized microparticles having an intensity-dependent refractive index is theoretically investigated. For particles near plasmon resonances optical switching also occurs by sweeping the frequency across the resonance at fixed incident intensity above a certain threshold. Several orders of magnitudes of reduction in the switching intensities are possible near sharp resonances, and an optical transistor mode with a very sizable differential gain can be achieved.

Physical Review A•Apr 1, 1986•101 citations

Bistable optical response of a nanoparticle heterodimer: Mechanism, phase diagram, and switching time

Bintoro Siswo Nugroho, Alexander Agustinus Iskandar, Victor A Malyshev +1 more

We conduct a theoretical study of the bistable optical response of a nanoparticle heterodimer comprised of a closely spaced semiconductor quantum dot and a metal nanoparticle. The bistable nature of the response results from the interplay between the quantum dot's optical nonlinearity and its self-action (feedback) originating from the presence of the metal nanoparticle. The feedback is governed by a complex valued coupling parameter G = G(R) + iG(I). We calculate the bistability phase diagram within the system's parameter space: spanned by G(R), G(I), and Δ, the latter being the detuning between the driving frequency and the transition frequency of the quantum dot. Additionally, switching times from the lower stable branch to the upper one (and vice versa) are calculated as a function of the intensity of the driving field. The conditions for bistability to occur can be realized, for example, for a heterodimer comprised of a closely spaced CdSe (or CdSe/ZnSe) quantum dot and a gold nanosphere.

arXiv:1209.3255•The Journal of Chemical Physics•Jul 1, 2013•62 citations

Optical bistability and nonlinearity of coherently coupled exciton-plasmon systems

Jian-Bo Li, Nam-Chol Kim, Mu-Tian Cheng +3 more

We theoretically investigated optical third-order nonlinearity of a coherently coupled exciton-plasmon hybrid system under a strong control field with a weak probe field. The analytic formulas of exciton population and effective third-order optical susceptibility of the hybrid of a metal nanoparticle (MNP) and a semiconductor quantum dot (SQD) were deduced. The bistable exciton population and the induced bistable nonlinear absorption and refraction response were revealed. The bistability region can be tuned by adjusting the size of metal nanoparticle, interparticle distance and intensity of control field. Our results have perspective applications in optical information processing based on resonant coupling of exciton-plasmon.

Optics Express•Jan 12, 2012•121 citations

Optical bistability and multistability in polaritonic materials doped with nanoparticles

Zhiping Wang, Benli Yu

We investigate the optical bistability and multistability in polaritonic materials doped with nanoparticles inside an optical ring cavity. It is found that the optical bistability and multistability can be easily controlled by adjusting the corresponding parameters of the system properly. The effect of the dipole–dipole interaction has also been included in the formulation, which leads to interesting phenomena. Our scheme opens up the possibility of controling the optical bistability and multistability in polaritonic materials doped with nanoparticles.

Laser Physics Letters•Oct 1, 2014•22 citations
Absorption of light by nanoparticle in the presence of resonant atom is theoretically investigated. Both the direct absorption of light by the nanoparticle and the absorption due to cascade energy transfer from light to the atom and then to the nanoparticle are taken into account. It is shown, that the cascade energy transfer is proportional to the imaginary part of the Green's photon function in this conditions. The Green's function is calculated in the quasi static approximation because of smallness both the size of the nanoparticle and the distance between it and the atom. The resonant atom is described in the generalized two-level model taking into account the direction of the atomic dipole moment. It is shown, that the light absorption by the nanoparticle can be increased by several orders because of presence of the atom. In the case when the nanoparticle is surrounded by collection of atoms it is found that the optical bistability is possible in this system. The range of parameters leading to the bistable behavior is found.
A cascade transfer of light energy to a resonance atom situated near a spherical nanoparticle and then, by a nonradiative mechanism, to the nanoparticle itself is considered. It is established that the efficiency of the cascade transfer essentially depends on the frequency and polarization of light, on the distance between the atom and the particle, on the optical properties of the particle, and on the time conditions of radiation. The rate of light absorption by a metal nanoparticle via cascade energy transfer may be 10 4 –10 5 times higher than the direct absorption of light by a nanoparticle. For a fixed frequency of light, the cascade transfer of energy is a sharply selective function of the distance between the atom and the particle (the resonance width is about 10 −2 of the particle radius). Atomic fluorescence exhibits similar behavior. This feature can form the basis for a new method of optical scanning microscopy and location and localization of atoms near the surface of a particle.
Intrinsic optical bistability in the scattering and absorption of light from Rayleigh-particle-sized microparticles having an intensity-dependent refractive index is theoretically investigated. For particles near plasmon resonances optical switching also occurs by sweeping the frequency across the resonance at fixed incident intensity above a certain threshold. Several orders of magnitudes of reduction in the switching intensities are possible near sharp resonances, and an optical transistor mode with a very sizable differential gain can be achieved.
We conduct a theoretical study of the bistable optical response of a nanoparticle heterodimer comprised of a closely spaced semiconductor quantum dot and a metal nanoparticle. The bistable nature of the response results from the interplay between the quantum dot's optical nonlinearity and its self-action (feedback) originating from the presence of the metal nanoparticle. The feedback is governed by a complex valued coupling parameter G = G(R) + iG(I). We calculate the bistability phase diagram within the system's parameter space: spanned by G(R), G(I), and Δ, the latter being the detuning between the driving frequency and the transition frequency of the quantum dot. Additionally, switching times from the lower stable branch to the upper one (and vice versa) are calculated as a function of the intensity of the driving field. The conditions for bistability to occur can be realized, for example, for a heterodimer comprised of a closely spaced CdSe (or CdSe/ZnSe) quantum dot and a gold nanosphere.
We theoretically investigated optical third-order nonlinearity of a coherently coupled exciton-plasmon hybrid system under a strong control field with a weak probe field. The analytic formulas of exciton population and effective third-order optical susceptibility of the hybrid of a metal nanoparticle (MNP) and a semiconductor quantum dot (SQD) were deduced. The bistable exciton population and the induced bistable nonlinear absorption and refraction response were revealed. The bistability region can be tuned by adjusting the size of metal nanoparticle, interparticle distance and intensity of control field. Our results have perspective applications in optical information processing based on resonant coupling of exciton-plasmon.
We investigate the optical bistability and multistability in polaritonic materials doped with nanoparticles inside an optical ring cavity. It is found that the optical bistability and multistability can be easily controlled by adjusting the corresponding parameters of the system properly. The effect of the dipole–dipole interaction has also been included in the formulation, which leads to interesting phenomena. Our scheme opens up the possibility of controling the optical bistability and multistability in polaritonic materials doped with nanoparticles.