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  • 1
    Electronic Resource
    Electronic Resource
    Rate and efficiency of spontaneous emission in metal-clad microcavities (2001)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 89 (2001), S. 615-625 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: In this article, we report experimental results on the control of spontaneous emission from sources embedded within metal-clad microcavities. The microcavity samples consist of an Eu3+ doped emissive monolayer embedded with a planar dielectric slab, bounded by a silver film on each side. We investigate the effect of both the cavity thickness and the location of the emissive monolayer within the cavity on the spontaneous emission rate of the emitters, observing both enhancement and inhibition. By varying the thickness of one of the silver films we also investigate the role of the reflectivity of the mirrors of the cavity on the control of spontaneous emission. In addition to the emission rate, results are presented on the spatial distribution of the emitted radiation. We find good agreement between our experimental results and those predicted by a classical theory over a large range microcavity structures. This agreement allows us to assess the contribution of the decay mediated by the electromagnetic modes of the cavity and the intrinsic nonradiative decay to the spontaneous emission rate. We then compare the ability of metal-clad and hybrid (one metal mirror and one distributed Bragg reflector) microcavity designs to optimize the efficiency of radiative emission. We show that enhancements, due to the increased confinement of the electromagnetic modes supported by the metal-clad microcavities, can be sufficient to overcome the loss associated with the absorption in the metal layers. We discuss the implication these results may have for device design. © 2001 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.1319321
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  • 2
    Electronic Resource
    Electronic Resource
    Surface profile dependence of surface plasmon band gaps on metallic gratings (1996)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 79 (1996), S. 7383-7385 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: When surface plasmon polaritons propagate on a corrugated surface, an energy gap opens up in the dispersion of the surface mode. We present the results of an experimental technique that directly images this gap. The technique is used to measure the width and the central frequency of the gap as a function of the grating profile. The experimental results agree well with the predictions of a recently published analytic model. In particular the results confirm that the central frequency of the gap drops as the grating amplitude increases. This is a previously unconfirmed prediction, over which there has been some debate. We also demonstrate that it is possible to observe gaps that are an order of magnitude wider than those reported elsewhere. © 1996 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.361456
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  • 3
    Electronic Resource
    Electronic Resource
    Efficient coupling of surface plasmon polaritons to radiation using a bi-grating (2001)
    Woodbury, NY : American Institute of Physics (AIP)
    Applied Physics Letters 79 (2001), S. 3035-3037 
    Details
    ISSN: 1077-3118
    Source: AIP Digital Archive
    Topics: Physics
    Notes: A nanostructured surface in the form of a bi-grating is shown to efficiently couple surface plasmon polaritons to free-space radiation in the visible part of the spectrum. Coupling was achieved for all propagation directions of the surface mode and the efficiency found to be independent of the propagation direction, taking a mean value of 60% for the structure examined. The consequences of the findings for emissive devices that make use of surface plasmons are discussed. © 2001 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.1414294
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  • 4
    Electronic Resource
    Electronic Resource
    Photonic band gaps and flat band edges in periodically textured metallic microcavities (2000)
    Woodbury, NY : American Institute of Physics (AIP)
    Applied Physics Letters 77 (2000), S. 193-195 
    Details
    ISSN: 1077-3118
    Source: AIP Digital Archive
    Topics: Physics
    Notes: The dispersion of optical modes in metallic microcavities is shown to be dramatically altered when wavelength-scale periodic texture is added to one of the cavity mirrors. We demonstrate that Bragg scattering of the cavity modes by such microstructure produces near-flat bands that remain significantly flat well away from the first Brillouin zone boundary. The electric fields associated with these modes are studied and are found to have field maxima that are enhanced over those pertaining to planar microcavities. The impact of this band structure upon emissive devices, especially in terms of the clear insensitivity to viewing angle, is discussed. © 2000 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.126921
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