Results 121 to 130 of about 418,956 (371)
Achromatic multiple beam splitting by adiabatic passage in optical waveguides [PDF]
arXiv, 2012 A novel variable achromatic optical beam splitter with one input and $N$ output waveguide channels is introduced. The physical mechanism of this multiple beam splitter is adiabatic passage of light between neighboring optical waveguides in a fashion reminiscent of the technique of stimulated Raman adiabatic passage in quantum physics.
arxiv
Compact Triple-Mode Filter Based on Quarter-Mode Substrate Integrated Waveguide
IEEE transactions on microwave theory and techniques, 2015 An isosceles right triangular waveguide with one electric wall and two magnetic walls is proposed to design a triple-mode filter implemented in a substrate integrated waveguide.
Chun-chun Ma, C. Jin
semanticscholar +1 more source
Advanced Materials, EarlyView.The rise of lead halide perovskite semiconductors has enabled high‐performance LEDs with internal quantum efficiencies approaching 100%. In order to further enhance the external quantum efficiencies limited by light outcoupling effects, in this account, the strategies for reducing energy dissipation through the substrate, waveguide, and evanescent ...
Tommaso Marcato +2 more
wiley +1 more source
Crystals, 2020 Herein, we reported on the precise growth and optical waveguide characteristics of hexagonal tris(8-hydroxyquinoline)aluminum(Ⅲ) (Alq3) micro-crystals (MCs).
Jungwoon Park +6 more
doaj +1 more source
Optics Express, 2015 A Mach-Zehnder Interferometer (MZI) liquid sensor, employing ultra-compact double-slot hybrid plasmonic (DSHP) waveguide as active sensing arm, is developed.
Xu Sun, D. Dai, L. Thylén, L. Wosinski
semanticscholar +1 more source
Advanced Photonics 2013, 2013 We present an easily fabricated waveguide prism for the terahertz (THz) frequency range. The prism is made of polypropylene and uses waveguide dispersion to spatially separate frequencies over the range of 0.1 to 0.7 THz. The diffraction properties of the prism were determined using electromagnetic field simulations and the waveguide parameters were ...
Maik Scheller +4 more
openaire +4 more sources
Quantum Batteries: A Materials Science Perspective
Advanced Materials, EarlyView.This perspective is focused on advanced materials that might allow the new device class of quantum batteries to be developed. These systems include microcavities with organic molecules, inorganic nanostructures and perovskites, and superconductor circuits.
Andrea Camposeo +5 more
wiley +1 more source
Holographic waveguides in photopolymers
Optics Express, 2019 The possibilities that offer the holographic optical elements for photovoltaic and "see through display" applications open new windows for holographic recording materials. In this sense, some specific characteristics are required for each particular application. Waveguides are one of the key elements for these applications. Photopolymers are one of the
R. Fernández +7 more
openaire +3 more sources
Light‐Emitting Diodes Based on Metal Halide Perovskite and Perovskite Related Nanocrystals
Advanced Materials, EarlyView.The review covers the past and current developments in light‐emitting diodes (LEDs) exploiting nanocrystals of halide perovskites and perovskite‐related materials. The review examines the aspects of material optimizations, device engineering, and applications.
Ying Liu +7 more
wiley +1 more source
Flatband Slow Wave in Novel Air-Hole-Array Strip Waveguides
IEEE Photonics Journal, 2009 We design two novel air-hole-array strip waveguides: one with elliptic air holes and the other with sandglass-shaped ones. Simulation results prove that flatband modes with low group velocity and low dispersion can be obtained.
Lei Dai, Fanghua Wang, Chun Jiang
doaj +1 more source