Results 81 to 90 of about 14,612 (217)

Gap maps and intrinsic diffraction losses in one-dimensional photonic crystal slabs

, 2004
A theoretical study of photonic bands for one-dimensional (1D) lattices embedded in planar waveguides with strong refractive index contrast is presented.
A. R. Cowan, A. Yariv, D. D. Stancil, D. L. Brundrett, D. L. Brundrett, D. Peyrade, Dario Gerace, E. G. Loewen, E. Popov, H. Benisty, J. D. Joannopoulos, J. Čtyroký, K. Sakoda, L. Li, Lucio Claudio Andreani, M. Nevière, M. Nevière, Ph. Lalanne, Ph. Lalanne, Q. Cao, S. M. Norton, S. M. Norton   +21 more
core   +1 more source

Band gap engineering in simultaneous phononic and photonic crystal slabs [PDF]

, 2010
We discuss the simultaneous existence of phononic and photonic band gaps in two types of phononic crystals slabs, namely periodic arrays of nanoholes in a Si membrane and of Si nanodots on a SiO2 membrane. In the former geometry, we investigate in detail
Akjouj, A., Bria, D., Djafari Rouhani, Bahram, ElBoudouti, EH, ElHassouani, Y., Li, Chanseng, Pennec, Yan, Vasseur, J.   +7 more
core   +2 more sources

Low‐Dimensional Materials and Van Der Waals Heterostructures for Energy Application: A Comprehensive Review

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
Low‐dimensional materials (0D, 1D, and 2D) exhibit unique electronic and physicochemical properties, enabling advanced nanoelectronic and optoelectronic devices. Mixed‐dimensional heterostructures combine these materials to enhance functionality.
Qaisar Alam, Sajjad Ali, Pir Muhammad Ismail, ABM Sharif Hossain   +3 more
wiley   +1 more source

Low Threshold, Wide Dynamic Range, Tunable, All-Optical Self-Modulator Based on Fano Resonance and Out-of-Plane Coupling in a Slab Photonic Crystal with a Graphene Layer

Journal of Nanotechnology, 2015
We demonstrate an all-optical modulator based on self-modulation in a one-dimensional slab photonic crystal (PhC) by using optical Kerr nonlinearity of graphene and Fano resonance effect.
Reza Asadi, Zhengbiao Ouyang
doaj   +1 more source

Active quasi-BIC optical vortex generators for ultrafast switching

New Journal of Physics, 2022
The Pancharatnam–Berry phase induced by the winding topology of polarization around a vortex singularity at bound states in the continuum (BIC) provides a unique approach to optical vortex (OV) generation.
Yuhao Wu, Lei Kang, Douglas H Werner
doaj   +1 more source

Improved superlensing in two-dimensional photonic crystals with a basis

, 2004
We study propagation of light in square and hexagonal two-dimensional photonic crystals. We show, that slabs of these crystals focus light with subwavelength resolution.
Joannopoulos J. D., K. Kempa, Kittel C., Taflove A., X. Wang, Z. F. Ren   +5 more
core   +1 more source

Dual Ferro‐/Piezo‐Electric Coupling in Two‐Dimensional [Bi2O2]‐Based Layered Structures for Synergistic Harvesting of Mechanical and Solar Energy

Exploration, EarlyView.
Inter‐plane 2D/2D nanosheet heterojunction based on two piezoelectric [Bi2O2]‐based layered compounds is constructed. Significantly increased piezoelectric properties of BiOBr@Bi5Ti3FeO15 by morphological regulation and interface chemical bonds. Dual‐piezoelectric field can modulate interfacial electric field and the interfacial band bending to ...
Daotong You, Xingwang Long, Zhiyong Yang, Lei Liu, Jianbang Chen, Tuan Guo   +5 more
wiley   +1 more source

Design of flexible ultrahigh-Q microcavities in diamond-based photonic crystal slabs

, 2008
We design extremely flexible ultrahigh-Q diamond-based double-heterostructure photonic crystal slab cavities by modifying the refractive index of the diamond.
Andrew D. Greentree, Baldwin, Barth, Batalov, Bayn, Bergman, Bordas, C. Martijn de Sterke, Devitt, Fairchild, Gaebel, Greentree, Greentree, He, Hines, Hossain, Jamieson, Jelezko, Karl, Kreuzer, Kuramochi, Kurtsiefer, Kühn, Larsson, Mabuchi, McCutcheon, Meijer, Noda, Olivero, Park, Rabeau, Rittweger, Rogers, Santori, Schietinger, Snjezana Tomljenovic-Hanic, Song, Steven Prawer, Su, Su, Tomljenovic-Hanic, Tomljenovic-Hanic, Tomljenovic-Hanic, Tomljenovic-Hanic, Waldermann, Wang, Wang, Yoshie   +47 more
core   +1 more source

Directional spontaneous emission in photonic crystal slabs

Nanophotonics
Abstract Spontaneous emission is one of the most fundamental out‐of‐equilibrium processes in which an excited quantum emitter relaxes to the ground state due to quantum fluctuations. In this process, a photon is emitted that can interact with other nearby emitters and establish quantum correlations between them, e.g., via super and ...
Erik Navarro-Barón, Herbert Vinck-Posada, Alejandro González-Tudela   +2 more
openaire   +5 more sources

Optimization of resonances in photonic crystal slabs [PDF]

SPIE Proceedings, 2003
Variational methods are applied to the design of a two-dimensional lossless photonic crystal slab to optimize resonant scattering phenomena. The method is based on varying properties of the transmission coefficient that are connected to resonant behavior.
Robert P. Lipton, Stephen P. Shipman, Stephanos Venakides   +2 more
openaire   +1 more source