Enhancement and inhibition of electromagnetic radiation in plane-layered media IPlane-wave spectrum approach to modeling classical effects

Sullivan, Kathleen; Hall, Dennis G.

doi:10.1364/josab.14.001149

Cited by 68 publications

(41 citation statements)

References 18 publications

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“…In particular, Sullivan and Hall [8] present an elegant plane wave solution that can easily be adapted to our system. For a single dipole at angle θ with respect to the normal of the dielectric layers we find [9]:…”

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confidence: 99%

Measuring the Quantum Efficiency of the Optical Emission of Single Radiating Dipoles Using a Scanning Mirror

et al. 2005

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Using scanning probe techniques, we show the controlled manipulation of the radiation from single dipoles. In one experiment we study the modification of the fluorescence lifetime of a single molecular dipole in front of a movable silver mirror. A second experiment demonstrates the changing plasmon spectrum of a gold nanoparticle in front of a dielectric mirror. Comparison of our data with theoretical models allows determination of the quantum efficiency of each radiating dipole.It is a well established matter that the radiation of an oscillating electric dipole can be manipulated if it is placed in front of a planar interface [1]. Experiments investigating this system date back to Drexhage [2] who looked at the influence of a metallic mirror on the fluorescence lifetime of ensembles of Eu 3+ ions. By preparing a large number of samples, each with a different spacing between the mirror and the emitter layer, two major effects were observed. Firstly, it was shown that the decay rate (Γ) oscillates at large distances due to the retarded interaction of the dipoles with their own reflected fields. Secondly, it was shown that Γ is strongly modified very close to the mirror due to the energy transfer to the metal [1,2]. Since that time, numerous works have investigated the modification of spontaneous emission from ensembles in thin dielectric layers [1]. Various key parameters such as the dipole's orientation, its distance to the interface and its quantum efficiency are, however, averaged in ensemble measurements.Due to challenges such as detection sensitivity, photostability and position control, experiments with single emitters have been scarce. Some researchers have nevertheless shown effects of the local dielectric environment by adding an index matching fluid to eliminate an interface [3,4] or by introducing the subwavelength boundary of a sharp tip [5,6]. In this work we study the fluorescence lifetime and intensity of a single molecule at a well-defined orientation and position, while moving an external silver mirror in its vicinity. We also examine the plasmon spectrum of a well-characterized single gold nanoparticle at various locations in front of a dielectric mirror. These experiments allow us to demonstrate, for the first time, both the far-field modulation and the nearfield modification of the total decay rate (Γ) for individual dipoles. Since the far-field modulations are only due to changes in the radiative decay rate (Γ r ) we can determine the quantum efficiency η = Γ r /Γ of each dipole.A theoretical description of dipole decay in multi-layer structures was first developed by Chance et al. [7] and has been expanded by many authors to cover numerous * Present address:FOM-Institute for Atomic and Molecular Physics (AMOLF), 1098 SJ Amsterdam, The Netherlands † Present address:Niels Bohr Institute, 2100 Copenhagen, Denmark ‡ Electronic address: vahid.sandoghdar@ethz.ch situations. In particular, Sullivan and Hall [8] present an elegant plane wave solution that can easily be adapted to our system. For a s...

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Measuring the Quantum Efficiency of the Optical Emission of Single Radiating Dipoles Using a Scanning Mirror

et al. 2005

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“…These oscillations have also been reported recently for ensembles of metallic nanostructures [29], but their analysis requires a great deal of care. The oscillations seem to be irregular and deviate from the theoretical values (green curve) obtained by considering the frequency shift of a classi-cal dipole placed between two flat glass surfaces [32]. In these calculations a point-like dipole was fixed at a distance of 50 nm (the radius of the gold nanoparticle) from a glass substrate and a second glass surface was scanned.…”

Section: The Interaction Between a Gold Nanoparticle And Two Dielmentioning

confidence: 79%

Coupling of plasmonic nanoparticles to their environments in the context of van der Waals–Casimir interactions

et al. 2008

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We present experiments in which the interaction of a single gold nanoparticle with glass substrates or with another gold particle can be tuned by in-situ control of their separations using scanning probe technology. We record the plasmon resonances of the coupled systems as a function of the polarization of the incident field and the particle position. The distinct spectral changes of the scattered light from the particle pair are in good agreement with the outcome of finite difference time-domain (FDTD) calculations. We believe our experimental technique holds promise for the investigation of the van der Waals-Casimir type interactions between nanoscopic neutral bodies.

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“…An optical interference mirror (OIM) slide consisting of a transparent dielectric thin film on a flat Ag substrate has been reported. [9][10][11][12] The fluorescence intensity of rhodamine B deposited onto the OIM slide was enhanced by more than 100-fold compared with that of rhodamine B deposited onto a common glass slide. 9 Such an enhancement is primarily due to double interference of the excitation light and the fluorescence in the dielectric layer.…”

Section: Introductionmentioning

confidence: 98%

High-Contrast Fluorescence Imaging Based on the Polarization Dependence of the Fluorescence Enhancement Using an Optical Interference Mirror Slide

Yasuda

Akimoto

2015

ANAL. SCI.

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High-contrast fluorescence imaging using an optical interference mirror (OIM) slide that enhances the fluorescence from a fluorophore located on top of the OIM surface is reported. To enhance the fluorescence and reduce the background light of the OIM, transverse-electric-polarized excitation light was used as incident light, and the transverse-magnetic-polarized fluorescence signal was detected. As a result, an approximate 100-fold improvement in the signal-to-noise ratio was achieved through a 13-fold enhancement of the fluorescence signal and an 8-fold reduction of the background light.

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Enhancement and inhibition of electromagnetic radiation in plane-layered media IPlane-wave spectrum approach to modeling classical effects

Cited by 68 publications

References 18 publications

Measuring the Quantum Efficiency of the Optical Emission of Single Radiating Dipoles Using a Scanning Mirror

Measuring the Quantum Efficiency of the Optical Emission of Single Radiating Dipoles Using a Scanning Mirror

Coupling of plasmonic nanoparticles to their environments in the context of van der Waals–Casimir interactions

High-Contrast Fluorescence Imaging Based on the Polarization Dependence of the Fluorescence Enhancement Using an Optical Interference Mirror Slide

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