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Volumn 78, Issue 20, 2008, Pages

Optical response with threefold symmetry axis on oriented microdomains of opal photonic crystals

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EID: 56349088788     PISSN: 10980121     EISSN: 1550235X     Source Type: Journal    
DOI: 10.1103/PhysRevB.78.205304     Document Type: Article
Times cited : (32)

References (67)
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    • We avoid speaking of a [111] orientation, as most commonly done in the literature, since we reserve this expression for the nonequivalent Γ-L-U and Γ-L-K orientations that are the focus of this work.
    • We avoid speaking of a [111] orientation, as most commonly done in the literature, since we reserve this expression for the nonequivalent Γ-L-U and Γ-L-K orientations that are the focus of this work.
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    • We have verified this statement by numerical calculation of reflectance spectra on finite-size opals with different orientations using the Fourier-modal or scattering-matrix method described in Ref..
    • We have verified this statement by numerical calculation of reflectance spectra on finite-size opals with different orientations using the Fourier-modal or scattering-matrix method described in Ref..
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    • Notice that, using confocal microscopy in reflection mode, the images of the second layer are slightly distorted due to scattering from interfaces in the first layer. As Fig. 4 shows, such a distortion does not impede the collection of optical images of the first two layers with reasonable quality. In Ref. a characterization technique based on the confocal microscope is demonstrating that imaging of the first three layers of the opal is actually possible. As an alternative, fluorescence confocal microscopy using light emitting spheres could be used: see, e.g., 10.1039/b110826n
    • Notice that, using confocal microscopy in reflection mode, the images of the second layer are slightly distorted due to scattering from interfaces in the first layer. As Fig. 4 shows, such a distortion does not impede the collection of optical images of the first two layers with reasonable quality. In Ref. a characterization technique based on the confocal microscope is demonstrating that imaging of the first three layers of the opal is actually possible. As an alternative, fluorescence confocal microscopy using light emitting spheres could be used: see, e.g., V. Kitaev, S. Fournier-Bidoz, S. M. Yang, and G. A. Ozin, J. Mater. Chem. 12, 966 (2002). Even in this case, however, distortion of the excitation laser spot, impinging on the second layer through the first one, cannot in principle be avoided. 10.1039/b110826n
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    • Notice that it is crucial to specify the experimental geometry: for example, if the beam would be incident from the top (negative kz) but with a positive kx component, measurements on domain 1 would probe the Γ-L-K orientation, i.e., the roles of the two nonequivalent orientations would be reversed.
    • Notice that it is crucial to specify the experimental geometry: for example, if the beam would be incident from the top (negative kz) but with a positive kx component, measurements on domain 1 would probe the Γ-L-K orientation, i.e., the roles of the two nonequivalent orientations would be reversed.
  • 60
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    • This is verified by the anisotropy of the optical properties shown below. Also, we have direct evident of the fcc structure from confocal microscopy measurements with a deeper focus (not shown here, see Ref.).
    • This is verified by the anisotropy of the optical properties shown below. Also, we have direct evident of the fcc structure from confocal microscopy measurements with a deeper focus (not shown here, see Ref.).
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* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.