Results 111 to 120 of about 610,284 (295)

Polarization-independent gain in mid-infrared interband cascade lasers

AIP Advances, 2016
We have calculated the gain function of a type-II W-design AlSb/InAs/GaAsSb/InAs/AlSb quantum wells to be used in an active region of interband cascade lasers, for two linear polarizations of in-plane propagating light: transverse-electric and transverse-
K. Ryczko, G. Sęk
doaj   +1 more source

Demonstration of an All‐Optical AND Gate Mediated by Photochromic Molecules

Advanced Functional Materials, EarlyView.
A logic AND gate that runs on photons is demonstrated. It relies on two spatially separated photochromic molecules that work in tandem. Abstract The realization of a photonic logic AND gate, i.e. a logic AND gate that runs on photons rather than electrons, and where all steps are controlled by light, is demonstrated. In a proof‐of‐principle experiment,
Heyou Zhang, Max Gießübel, Pankaj Dharpure, Andrea Albert, Vira Niestierkina, Paul Mulvaney, Mukundan Thelakkat, Jürgen Köhler   +7 more
wiley   +1 more source

Analysis of Biaxially Tensile Strained Ge/SiGe Multiple Quantum Wells for Electro-Absorption Modulators With Low Polarization Sensitivities

IEEE Photonics Journal, 2018
We analyze theoretically biaxially tensile strained Ge/Si0.18Ge0.82 multiple quantum wells (MQWs) for electro-absorption modulators with low polarization sensitivities.
Jianfeng Gao, Junqiang Sun, Jialin Jiang
doaj   +1 more source

Radiative Correction to the Transferred Polarization in Elastic Electron-Proton Scattering

, 2000
Model independent radiative correction to the recoil proton polarization for the elastic electron-proton scattering is calculated within method of electron structure functions.
A. I. Akhiezer, A. V. Afanasev, A. V. Afanasev, B. D. Milbrath, E. A. Kuraev, E. A. Kuraev, G. Altarelli, I. Akushevich, I. Akushevich, I. V. Akushevich, J. Scofield, L. C. Maximon, L. N. Lipatov, M. I. Konchatnij, M. K. Jones, M. Skrzypek, N. Dombey, N. P. Merenkov, R. G. Arnold, S. Drell, S. Jadach, T. V. Kukhto, V. N. Baier   +22 more
core   +2 more sources

Near‐Infrared Emitting Lanthanide Catecholate Giant Single Crystals – Morphology Control and Photon Down‐Conversion

Advanced Functional Materials, EarlyView.
Controlled syntheses of lanthanide coordination polymers based on the dihydroxybenzoquinone (DHBQ) organic linker afforded large single crystals of Ln‐DHBQ CPs (Ln = Yb, Nd). A novel structural variant of Yb‐DHBQ is identified by means of single crystal diffraction analysis.
Marina I. Schönherr, Alexander Biewald, Andre Mähringer, Thaddäus J. Koller, Peter Mayer, Markus Döblinger, Achim Hartschuh, Dana D. Medina   +7 more
wiley   +1 more source

High-Efficiency Polarization-Independent LCoS Utilizing a Silicon-Based Metasurface

Photonics
In this paper, we propose and demonstrate a liquid crystal on silicon (LCoS) device that achieves high-efficiency, broadband, polarization-independent phase modulation by integrating a metasurface between the liquid crystal layer and the backplane of a ...
Yuxi Deng, Boyun Liu, Jinhua Yan
doaj   +1 more source

The Integrated Polarization of Spiral Galaxy Disks

, 2008
We present integrated polarization properties of nearby spiral galaxies at 4.8 GHz, and models for the integrated polarization of spiral galaxy disks as a function of inclination.
A. R. Taylor, Arshakian, Binney, Brown, Brown, Burn, Chyży, Dumke, Dumke, Fletcher, Golla, Grosbøl, Gräve, Han, Heesen, J. M. Stil, Krause, Lambas, M. Krause, Niklas, R. Beck, Simmons, Stil, Taylor, Tüllmann, Wilman   +25 more
core   +1 more source

3D Polarization-Independent Visible Invisibility

, 2010
We fabricate and characterize a three-dimensional polarization-independent invisibility cloak operating at visible wavelengths of light. The required drastic miniaturization has become possible by employing stimulated-emission-depletion inspired direct-laser-writing optical lithography with conceptually diffraction-unlimited axial and lateral ...
Fischer, Joachim, Ergin, Tolga, Wegener, Martin   +2 more
openaire   +2 more sources

Polarization-independent vertical coupler for photonics integration

Optics Express, 2004
We present the first systematic design approach for compact polarization-independent mode-size transformers based on tapered resonant vertical couplers with transfer efficiencies greater than 90%. Resonant coupling occurs at a critical taper width having equal TE and TM effective index. Being polarization-independent broadens the usefulness of vertical
Mee-Koy, Chin, Chee-Wei, Lee, Jinyuan, Shen   +2 more
openaire   +2 more sources

Highly Sensitive Electrochemical Biosensor Based on Hairy Particles with Controllable High Enzyme Loading and Activity

Advanced Functional Materials, EarlyView.
For the first time, a highly sensitive electrochemical biosensor based on SiO2‐based hairy particles with a grafted PDMAEMA polymer brush containing a quantifiable and large amount of immobilized Laccase is reported. The fabricated biosensor exhibits a sensitivity of 0.14 A·m⁻¹, a limit of detection (LOD) of 0.1 µm, and a detection range of 0.3–750 µm,
Pavel Milkin, Anila Antony, Hongtao Cai, Antonia Debevc, Ceyda Topal, Anne Linhardt, Alla Synytska, Leonid Ionov   +7 more
wiley   +1 more source