Results 41 to 50 of about 32,180 (314)
Optics Express, 2005 A new type of two-dimensional photonic-crystal (PC) structure called annular PC composed of a dielectric-rod and a circular-air-hole array in a square or triangular lattice such that a dielectric rod is centered within each air hole is studied. The dielectric rods within the air holes greatly modify the dispersion diagram of the photonic crystal ...
Hamza, Kurt, D S, Citrin
openaire +2 more sources
, 2012 We experimentally demonstrate a new optical filter design comprising of a photonic crystal cavity and a low index bus waveguide which are monolithically integrated on a silicon-on-insulator (SOI) platform.
Ferrera, Marcello +13 more
core +1 more source
Crystals, 2020 The past and present goal of photonic technology stems in the fine and arbitrary control of light propagation within miniaturized devices that can possibly integrate different functionalities [...]
Martella Daniele, Sara Nocentini
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Location and Topology of the Fundamental Gap in Photonic Crystals
Physical Review X, 2022 The fundamental, or first, band gap is of unmatched importance in the study of photonic crystals. Here, we address precisely where this gap can be opened in the band structure of three-dimensional photonic crystals.
Thomas Christensen +3 more
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Extraction of group index of lossy photonic crystal waveguides
, 2015 This work is supported by an EPSRC Impact Acceleration Grant, an EPSRC Doctoral Prize and a European Research Council Starting grant (no. 337508).We present a numerical approach to extract group index in photonic crystal (PhC) waveguides using two- and ...
Debnath, Amrita +2 more
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Advanced Functional Materials, EarlyView.We propose a suture‐complementary approach that integrates optical skin clearing with a strain‐programmable luminescent adhesive patch. Hyaluronic acid promotes transdermal delivery of tartrazine to improve optical clearing and stabilizes its interaction with a photosensitizer. Optical clearing increases the penetration depth of visible light into skin,
Seong‐Jong Kim +6 more
wiley +1 more source
High Efficiency Interface for Coupling Into Slotted Photonic Crystal Waveguides
IEEE Photonics Journal, 2011 We investigate the mechanism of coupling light into slotted photonic crystal waveguides. We identify two alternative approaches for improving the coupling efficiency, based on engineered mode dispersion and on resonant mechanisms.
M. G. Scullion +2 more
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Photonic crystal and photonic wire nano-photonics based on silicon on insulator [PDF]
, 2006 Silicon-on-insulator (SOI) is a strong candidate for application in future planar waveguide integration technology, whether or not luminescence is extracted from the silicon.
De La Rue, Richard +28 more
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Advanced Functional Materials, EarlyView.Here, SubNc single‐component organic photodiodes (SC‐OPDs) are investigated, which achieve highly competitive performance metrics, including high EQE, ultra‐low JD, and high specific detectivity (D*). This study emphasizes the critical role of an organic buffer layer in studying the interface energetics and effects to achieve state‐of‐the‐art ...
Anncharlott Kusber +12 more
wiley +1 more source
Reflectivity of Photonic Crystals Self-assembled with Silica Spheres
Journal of Thermal Science and Technology, 2006 We investigate the spectral reflectivity of photonic crystals assembled with silica spheres. The propagation of electromagnetic wave can be controlled by periodic structures known as photonic crystals.
Masahiro KIHARA +4 more
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