Results 41 to 50 of about 3,323 (241)
Photonic bands and gap maps in a photonic crystal slab [PDF]
IEEE Journal of Quantum Electronics, 2002 The photonic bands of a two-dimensional (2-D) lattice patterned in a planar waveguide are calculated by expanding the magnetic field on the basis of waveguide modes. The method yields both the truly guided modes of the structure as well as the quasi-guided modes (or guided resonances) which lie above the light line in the first Brillouin zone ...
ANDREANI, LUCIO, AGIO, MARIO
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All-polymer photonic crystal slab sensor
Optics Express, 2015 An all-polymer photonic crystal slab sensor is presented, and shown to exhibit narrow resonant reflection with a FWHM of less than 1 nm and a sensitivity of 31 nm/RIU when sensing media with refractive indices around that of water. This results in a detection limit of 4.5 × 10(-6) RIU when measured in conjunction with a spectrometer of 12 pm/pixel ...
Pétur G. Hermannsson +7 more
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Efficient Analysis of Photonic Crystal Slabs [PDF]
Journal of Lasers, Optics & Photonics, 2014 In this paper we propose an accelerated plane wave expansion method (PWEM) for calculation of slab photonic crystal (slab PC) modes. In this method instead of creating artificial periodicity in the direction of slab normal and solving the problem as a full 3D one, which is done in standard PWEM, we consider constant coefficients in 2D PWEM as functions
Mohammad Hasan Aram, Sina Khorasani
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Opportunities of Semiconducting Oxide Nanostructures as Advanced Luminescent Materials in Photonics
Advanced Materials, EarlyView.The review discusses the challenges of wide and ultrawide bandgap semiconducting oxides as a suitable material platform for photonics. They offer great versatility in terms of tuning microstructure, native defects, doping, anisotropy, and micro‐ and nano‐structuring. The review focuses on their light emission, light‐confinement in optical cavities, and
Ana Cremades +7 more
wiley +1 more source
Design and analysis of 1:2 line optical decoder based on linear optics
e-Prime: Advances in Electrical Engineering, Electronics and Energy, 2023 In this paper, a simple design of all-optical photonic crystal (PhC) based 1:2 line decoder has been proposed and its operating principle is based on light beam interference. The designed structure has a hexagonal arrangement of air holes in Si substrate
Kamanashis Goswami +2 more
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Directional Flow of Confined Polaritons in CrSBr
Advanced Materials, EarlyView.CrSBr, a layered magnetic semiconductor, naturally channels self‐hybridized excitonpolaritons into highly directional flow. Its intrinsic optical anisotropy, high refractive index, and strong lightmatter coupling enable long‐range guided modes along the a‐axis, with propagation lengths set by their excitonphoton admixture.
Pratap Chandra Adak +10 more
wiley +1 more source
Large mode-volume, large beta, photonic crystal laser resonator
AIP Advances, 2014 We propose an optical resonator formed from the coupling of 13, L2 defects in a triangular-lattice photonic crystal slab. Using a tight-binding formalism, we optimized the coupled-defect cavity design to obtain a resonator with predicted single-mode ...
Mohsen Kamandar Dezfouli, Marc M. Dignam
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Optical Microcavities Clad by Low-Absorption Electrode Media
IEEE Photonics Journal, 2010 Four types of high-Q optical microcavities - disk, 1-D photonic crystal nanobeam, 2-D photonic crystal slab, and 3-D photonic crystal optical microresonators - clad by low-optical-loss electrode media such as indium tin oxide are designed and evaluated ...
Özlem Senlik +3 more
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Nodal degeneracy of guided modes in uniaxial crystal slabs
Frontiers in Physics, 2023 We study the dispersions of the guided modes in the continuous uniaxial crystal slab waveguide and engineer their degeneracies through dielectric anisotropy.
Xinyang Pan +8 more
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Tunable Fano resonance in photonic crystal slabs
Optics Express, 2006 A three dimensional analysis of a special class of anisotropic materials is presented. We introduce an extension of the Scattering Matrix Method (SMM) to investigate the behavior of anisotropic Photonic Crystal Slabs (PhCS) subject to external radiation.
Jungfeng, Song +3 more
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