Results 51 to 60 of about 62,036 (292)

Refractive index sensing of gases based on a one-dimensional photonic crystal nanocavity [PDF]

Journal of Sensors and Sensor Systems, 2015
Silicon photonic crystal sensors have become very attractive for various optical sensing applications. Using silicon as a material platform provides the ability to fabricate sensors with other photonic devices on a single chip.
M. Mohebbi
doaj   +1 more source

Generation of a Synthetic Database for the Optical Response of One-Dimensional Photonic Crystals Using Genetic Algorithms

Mathematics, 2022
This work proposes an optimization tool based on genetic algorithms for the inverse design of photonic crystals. Based on target reflectance, the algorithm generates a population of chromosomes where the genes represent the thickness of a layer of a ...
Cesar Isaza, Ivan Alonso Lujan-Cabrera, Ely Karina Anaya Rivera, Jose Amilcar Rizzo Sierra, Jonny Paul Zavala De Paz, Cristian Felipe Ramirez-Gutierrez   +5 more
doaj   +1 more source

Angular emission properties of a layer of rare-earth based nanophosphors embedded in one-dimensional photonic crystal coatings [PDF]

, 2011
The angular properties of light emitted from rare-earth based nanophosphors embedded in optical resonators built in one-dimensional photonic crystal coatings are herein investigated. Strong directional dependence of the photoluminescence spectra is found.
Calvo Roggiani, Mauricio, Levenson, J.A.M, Martínez, O. E, Míguez García, Hernán Ruy, Núñez Alvarez, Nuria O., Ocaña Jurado, Manuel, Sánchez Sobrado, Olalla, Yacomotti, Alejandro M.   +7 more
core   +1 more source

Photoswitching Conduction in Framework Materials

Advanced Functional Materials, EarlyView.
This mini‐review summarizes recent advances in state‐of‐the‐art proton and electron conduction in framework materials that can be remotely and reversibly switched on and off by light. It discusses the various photoswitching conduction mechanisms and the strategies employed to enhance photoswitched conductivity.
Helmy Pacheco Hernandez, Stefan Hecht, Wolfgang Wenzel, Lars Heinke, Mariana Kozlowska   +4 more
wiley   +1 more source

Backward Tamm states in left-handed metamaterials [PDF]

, 2006
We study the electromagnetic surface waves localized at an interface separating a one-dimensional photonic crystal and left-handed metamaterial, the so-called surface Tamm states.
Abdolrahman Namdar, Ilya V. Shadrivov, Tamm E., Yeh P., Yuri S. Kivshar   +4 more
core   +2 more sources

Nanoscale Mapping of Plasmonic Charge Transport in Nano‐Resonators Based on Resistive Switching Materials

Advanced Functional Materials, EarlyView.
In this strategy, a conductive nano‐probe is employed to induce nanoscale phase transitions and map the nanoscale conductivity and trap density of GST films. By utilizing the contrasting properties of phase‐change states, nano‐resonators are fabricated that exhibit plasmonic conduction and dramatically different transport characteristics.
Sunwoo Bang, Seunghyo Park, Shashank Shekhar, Yuhyeon Oh, Seunghun Hong   +4 more
wiley   +1 more source

Photonic band gap properties of one-dimensional photonic quasicrystals containing Nematic liquid crystals

Results in Physics, 2020
Reflectance spectra of one-dimensional periodic multilayered stacks with anisotropic defect layer built according to the Generalized Thue Morse sequence is investigated by the theoretical transfer matrix method for both polarized waves.
Y. Trabelsi, N. Ben Ali, Francis Segovia-Chaves, Herbert Vinck Posada   +3 more
doaj   +1 more source

Capsize of polarization in dilute photonic crystals

, 2017
We investigate, experimentally and theoretically, polarization rotation effects in dilute photonic crystals with transverse permittivity inhomogeneity perpendicular to the traveling direction of waves.
Cuevas, Emilio, Gasparian, Vladimir, Gevorkian, Zhyrair, Hakhoumian, Arsen   +3 more
core   +2 more sources

Electromechanical tuning of vertically-coupled photonic crystal nanobeams [PDF]

, 2012
We present the design, the fabrication and the characterization of a tunable one-dimensional (1D) photonic crystal cavity (PCC) etched on two vertically-coupled GaAs nanobeams.
Fiore, A., Höfling, S., Lermer, M., Midolo, L., Pagliano, F., van Otten, F. W. M., Xia, T., Yoon, S. N.   +7 more
core   +3 more sources

One‐Dimensional Photonic Crystal for Surface Mode Polarization Control

Advanced Optical Materials, 2022
AbstractBloch surface waves sustained by truncated 1D photonic crystals (1DPCs) are well known tools for surface‐enhanced spectroscopy. They provide strongly confined fields with uniform distribution over a large surface area, a characteristic exploited in standard refractometric sensing.
Mogni E., Pellegrini G., Gil-Rostra J., Yubero F., Simone G., Fossati S., Dostalek J., Martinez Vazquez R., Osellame R., Celebrano M., Finazzi M., Biagioni P.   +11 more
openaire   +4 more sources