Modification of the spontaneous emission rate of Eu^{3+} ions embedded within a dielectric layer above a silver mirror

Worthing, P. T.; Amos, R. M.; Barnes, Bill

doi:10.1103/physreva.59.865

Cited by 76 publications

(50 citation statements)

References 15 publications

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“…In addition, for large spacer (~λ) it can be noticed that γ already tends to the one without mirror meaning that the value corresponding to "infinite" spacer is reached rapidly. This behaviour has been previously observed by Amos and Barnes [23], and Worthing et al [24] where they study the lifetime of an emitter located above a metallic mirror and separated by a dielectric spacer. In case of sample C where the membrane is sandwiched in between 2 Bragg mirrors, the behaviour is similar and the enhancement slightly better, except for S=0.53where the inhibition strongly decreases.…”

Section: Structuressupporting

confidence: 74%

Inhibition of light emission in a 2.5D photonic structure

Peretti

Seassal

Viktorovich

et al. 2014

Journal of Applied Physics

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We analyse inhibition of emission in a 2.5D photonic structures made up a photonic crystal (PhC) and Bragg mirrors using FDTD simulations. A comparison is made between an isolated PhC membrane and the same PhC suspended onto a Bragg mirror or sandwiched between 2 Bragg mirrors. Strong inhibition of the Purcell factor is observed in a broad spectral range, whatever the in-plane orientation and location of the emitting dipole. We analysed these results numerically and theoretically by simulating the experimentally observed lifetime of a collection of randomly distributed emitters, showing that their average emission rate is decreased by more than one decade, both for coupled or isolated emitters. INTRODUCTIONSince the late 80's, Photonic Crystal (PhC) were used to optimise interactions between light and matter. In most of cases, using the Bloch modes supported by the PhC, the main goal was to control the absorption [1,2,3], or the emission [4,5,6] of devices such as photodetectors, solar cells, microlasers or single photon sources. For the latter, the goal is not only to increase the emission rate in one single mode using Purcell effect, but also to avoid all parasitic emissions in order to funnel spontaneous emission (SE) in a single mode of interest [7]. In other words, the goal is to inhibit SE in all modes except one. Inhibiting SE in PhC have been studied since the seminal work of E. Yablonovitch [8], where a 3D photonic band-gap structure is used to stifle the SE rate in semiconductors. This method allows for controlling the local density of optical modes (LDOS) at the position of the emitters and on a large spectral range. Inhibition on such sample was experimentally demonstrated [9], but, due to difficulty in elaboration of 3D structures, the measured inhibition factors, which is defined as the ratio of the SE rate in bulk material over the SE rate in the PhC structure, remained relatively low (<10). However the control of the SE rate could be reached whatever the location and the polarization of the emitter. Other approaches were also studied, where inhibition is stronger but with constraints on the emitter position or orientation. For example, using micro pillars grown on a mirror leads to an

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Section: Structuressupporting

confidence: 74%

Inhibition of light emission in a 2.5D photonic structure

Peretti

Seassal

Viktorovich

et al. 2014

Journal of Applied Physics

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“…This is significant when one considers the case of an emissive species placed inside such a microcavity structure. For a monochromatic emitter, 8 emission into waveguide modes is prevented if the emission frequency lies within the band gap of the waveguide mode. Microcavity-enhanced emission from the structure is thus prevented, as the band gap reduces the number of ''routes of emission,'' and it is therefore likely that the lifetime of the emitter will be increased.…”

Section: Resultsmentioning

confidence: 99%

“…6,7 It has been clearly demonstrated that the boundary conditions imposed by such planar microcavity systems can modify the spatial and spectral distribution of the emitted radiation from such devices 4 and also the spontaneous emission lifetime of the emitter. 8,9 However, the extent to which spontaneous emission may be controlled is limited by the planar symmetry of the microcavity. In order to modify the spontaneous emission process further, the dimensionality of the system needs to be reduced, 10,11 and it is this that we have sought to do in the present study.…”

Section: Introductionmentioning

confidence: 99%

Flat photonic bands in guided modes of textured metallic microcavities

Salt

Barnes

2000

Phys. Rev. B

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A detailed experimental study of how wavelength-scale periodic texture modifies the dispersion of the guided modes of /2 metal-clad microcavities is presented. We first examine the case of a solid-state microcavity textured with a single, periodic corrugation. We explore how the depth of the corrugation and the waveguide thickness affect the width of the band gap produced in the dispersion of the guided modes by Bragg scattering off the periodic structure. We demonstrate that the majority of the corrugation depths studied dramatically modify the dispersion of the lowest-order cavity mode to produce a series of substantially flat bands. From measurements of how the central frequency of the band gap varies with direction of propagation of the guided modes, we determine a suitable two-dimensional texture profile for the production of a complete band gap in all directions of propagation. We then experimentally examine band gaps produced in the guided modes of such a two-dimensionally textured microcavity and demonstrate the existence of a complete band gap for all directions of propagation of the lowest-order TE-polarized mode. We compare our experimental results with those from a theoretical model and find good agreement. Implications of these results for emissive microcavity devices such as light-emitting diodes are discussed.

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“…Furthermore, in 1999, P. T. Worthing and al. [3] etablished that the mode of deexcitation privileged for ions Eu 3+ close to a metallic surface are the SPs modes. These results were obtained in a weak coupling regime.…”

Section: Introductionmentioning

confidence: 99%

Surface Plasmon - Guided Mode strong coupling

Castanié

Felbacq

Guizal

2012

AEM

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It is shown that it is possible to realize strong coupling between a surface plasmon and a guided mode in a layered structure. The dispersion relation of such a structure is obtained through the S-matrix algorithm combined with the Cauchy integral technique that allows for rigorous computations of complex poles. The strong coupling is demonstrated by the presence of an anticrossing in the dispersion diagram and simultaneously by the presence of a crossing in the loss diagram. The temporal characteristics of the different modes and the decay of the losses in the propagation of the hybridized surface plasmons are studied.

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Modification of the spontaneous emission rate of Eu^{3+} ions embedded within a dielectric layer above a silver mirror

Cited by 76 publications

References 15 publications

Inhibition of light emission in a 2.5D photonic structure

Inhibition of light emission in a 2.5D photonic structure

Flat photonic bands in guided modes of textured metallic microcavities

Surface Plasmon - Guided Mode strong coupling

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