Optical binding

Burns, Michael M.; Fournier, Jean-Marc R.; Golovchenko, Jene Andrew

doi:10.1103/physrevlett.63.1233

Cited by 491 publications

(396 citation statements)

References 10 publications

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“…The response of the dielectric metasurface is similar to the collective modes found in asymmetric double-gap split-ring resonators, in which the asymmetry in the rings yields a finite electric dipole moment that can couple the out-of-plane magnetic dipole mode to free space [27][28][29][30][31][32] . In our case, coupling to free space is provided by the bright-mode resonators, which are placed in close proximity to the symmetric dark-mode resonators.…”

Section: Resultsmentioning

confidence: 58%

All-dielectric metasurface analogue of electromagnetically induced transparency

et al. 2014

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Metasurface analogues of electromagnetically induced transparency (EIT) have been a focus of the nanophotonics field in recent years, due to their ability to produce high-quality factor (Q-factor) resonances. Such resonances are expected to be useful for applications such as low-loss slow-light devices and highly sensitive optical sensors. However, ohmic losses limit the achievable Q-factors in conventional plasmonic EIT metasurfaces to values oB10, significantly hampering device performance. Here we experimentally demonstrate a classical analogue of EIT using all-dielectric silicon-based metasurfaces. Due to extremely low absorption loss and coherent interaction of neighbouring meta-atoms, a Q-factor of 483 is observed, leading to a refractive index sensor with a figure-of-merit of 103. Furthermore, we show that the dielectric metasurfaces can be engineered to confine the optical field in either the silicon resonator or the environment, allowing one to tailor light-matter interaction at the nanoscale.

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Section: Resultsmentioning

confidence: 58%

All-dielectric metasurface analogue of electromagnetically induced transparency

et al. 2014

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“…Next, as an attractive feature of this system, the outcoupled field intensity directly serves as a possibility of time-resolved monitoring of the formation of the ordered phase. Note that in setups without resonator, the uncontrolled scattered field can lead to a binding of micrometer-sized particles in an ordered pattern in liquid [40,41]. In the cavity scheme, finally, the viscous motion is provided by the dynamically coupled single-mode cavity field.…”

Section: Discussionmentioning

confidence: 99%

Self-organization of atoms in a cavity field: Threshold, bistability, and scaling laws

et al. 2005

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We present a detailed study of the spatial self-organization of laser-driven atoms in an optical cavity, an effect predicted on the basis of numerical simulations [P. Domokos and H. Ritsch, Phys. Rev. Lett. 89, 253003 (2002)] and observed experimentally [A. T. Black et al. in Phys. Rev. Lett. 91, 203001 (2003)]. Above a threshold in the driving laser intensity, from a uniform distribution the atoms evolve into one of two stable patterns that produce superradiant scattering into the cavity. We derive analytic formulas for the threshold and critical exponent of this phase transition from a mean-field approach. Numerical simulations of the microscopic dynamics reveal that, on laboratory timescale, a hysteresis masks the mean-field behaviour. Simple physical arguments explain this phenomenon and provide analytical expressions for the observable threshold. Above a certain density of the atoms a limited number of "defects" appear in the organized phase, and influence the statistical properties of the system. The scaling of the cavity cooling mechanism and the phase space density with the atom number is also studied.

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“…where F ៝ i is the force on the ith sphere͒ that acts to attract or repel the particles from each other, 16,21 with the convention that a positive value of the force indicates repulsion. Following Ref.…”

Section: Methodsmentioning

confidence: 99%

“…Our electrodynamics calculation shows that owing to the retardation, the optical force oscillates between attraction and repulsion, with a magnitude that scales as ϳD −2 in the far field, just as for two dielectric spheres. 16,21 We next explore the size dependency of the resonant optical force. Figure 4 plots ͉F max ͉ / F single versus r s ͑radius of the particle͒ for two incident frequencies ͑3.25 and 3.5 eV͒ and two polarizations.…”

Section: B Electrodynamics Calculationsmentioning

confidence: 99%

Electrodynamics study of plasmonic bonding and antibonding forces in a bisphere

Tang

Chan

2008

Phys. Rev. B

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Light excitation of surface plasmons in metallic nanoparticle clusters can induce huge forces. We study such forces by using an electrodynamics approach, which fully incorporates the retardation effect. As two particles approach each other, the single-particle plasmons hybridize and split into attractive bonding modes and repulsive antibonding modes, which eventually evolve into an attractive band and a repulsive band. At an intensity of about 0.05 W / m 2 , the force can reach nano-Newtons and, hence, can dominate over other relevant interactions.

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Optical binding

Cited by 491 publications

References 10 publications

All-dielectric metasurface analogue of electromagnetically induced transparency

All-dielectric metasurface analogue of electromagnetically induced transparency

Self-organization of atoms in a cavity field: Threshold, bistability, and scaling laws

Electrodynamics study of plasmonic bonding and antibonding forces in a bisphere

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