Results 41 to 50 of about 186,221 (352)
Mechanically Tunable Negative-Index Photonic Crystal Lens
IEEE Photonics Journal, 2010 We report the microelectromechanical systems (MEMS)-enabled mechanically tunable negative-index photonic crystal lens, which was comprised of 2-D photonic crystal and symmetrical electro-thermal actuators. The 2-D photonic crystal was made of a honeycomb
Y. Cui, V. A. Tamma, J.-B. Lee, W. Park
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Study of laser actions by bird’s feathers with photonic crystals
Scientific Reports, 2021 Random lasers had been made by some biomaterials as light scattering materials, but natural photonic crystals have been rarely reported as scattering materials.
Shih-Wen Chen +6 more
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BioResources, 2023 The development of nanocellulose (CNCs) chiral liquid crystal photonic elastomeric vitrimer materials is promising for achieving needed reduction in carbon emissions (elastomer material recycling) and developing novel photonic functional materials.
Jinlong Zhang, Weiguo Li, Qinglin Wu
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AIP Advances, 2013 We demonstrate multiple and colorful cone-shaped lasing from dual-periodic photonic crystal, indicating that coupling occurs between the photonic bands in a photonic crystal laser system.
Cui-Feng Ying +5 more
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, 2011 This article presents experimental results on properties of waves propagating in an unbounded and a bounded photonic crystal consisting of metallic cylinders which are arranged in a triangular lattice. First, we present transmission measurements of plane
Bittner, S. +3 more
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Spatiotemporal Photonic Crystals
Conference on Lasers and Electro-Optics, 2020 We study photonic systems periodic in both time and space - spatiotemporal photonic crystals, and find that their bandstructure contains both frequency and momentum bandgaps. When the two types of bandgaps coincide, anomalous bandstructure is observed.
Yaakov Lumer +4 more
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Photon confinement in photonic crystal nanocavities [PDF]
Laser & Photonics Reviews, 2008 AbstractThe quest for enhanced light‐matter interactions has enabled a tremendous increase in the performance of photonic‐crystal nanoresonators in the past decade. State‐of‐the‐art nanocavities now offer mode lifetime in the nanosecond range with confinement volumes of a few hundredths of a cubic micrometer.
Lalanne, Philippe +2 more
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General Recipe for Designing Photonic Crystal Cavities [PDF]
, 2005 We describe a general recipe for designing high-quality factor (Q) photonic crystal cavities with small mode volumes. We first derive a simple expression for out-of-plane losses in terms of the k-space distribution of the cavity mode.
Englund, Dirk +2 more
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Conductance of photons in disordered photonic crystals [PDF]
Physical Review E, 2005 The conductance of photons in two-dimensional disordered photonic crystals is calculated using an exact multipole-plane wave method that includes all multiple scattering processes. Conductance fluctuations, the universal nature of which has been established for electrons in the diffusive regime, are studied for photons, in both principal polarizations ...
C. Martijn de Sterke +7 more
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Quadrupole topological photonic crystals [PDF]
Nature Communications, 2020 AbstractQuadrupole topological phases, exhibiting protected boundary states that are themselves topological insulators of lower dimensions, have recently been of great interest. Extensions of these ideas from current tight binding models to continuum theories for realistic materials require the identification of quantized invariants describing the bulk
Li He +3 more
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