Results 21 to 30 of about 8,090,991 (304)
Compositional analysis of InAs-GaAs-GaSb heterostructures by low-loss electron energy loss spectroscopy [PDF]
, 2013 As an alternative to Core-Loss Electron Energy Loss Spectroscopy, Low-Loss EELS is suitable for compositional analysis of complex heterostructures, such as the InAs-GaAs-GaSb system, since in this energy range the edges corresponding to these elements ...
A G Taboada +8 more
core +2 more sources
Low-loss Waveguides and Devices for Compact THz Systems [PDF]
, 2013 A rigorous full-vectorial modal solution approach based on the finite element method is used to find the propagation properties of THz waveguides. Design approaches are presented to reduce the modal loss.
Kejalakshmy, N. +5 more
core +1 more source
Low Loss Hollow-Core Connecting-Circle Negative-Curvature Fibres
IEEE Photonics Journal, 2021 Hollow-core negative-curvature fibres have been the focus of current research, but how to reduce the loss of hollow-core negative-curvature fibres is a serious problem. This paper proposes a new structure of hollow-core negative-curvature fibres, that is
Boyi Yang +9 more
doaj +1 more source
A SiGe HEMT Mixer IC with Low Conversion Loss [PDF]
, 2003 The authors present the first SiGe HEMT mixer integrated circuit. The active mixer stage, operating up to 10GHz RF, has been designed and realized using a 0.1µ µµ µm gate length transistor technology.
Abele, P. +7 more
core +1 more source
A Terahertz Polarizer Based on Multilayer Metal Grating Filled in Polyimide Film
IEEE Photonics Journal, 2016 Terahertz (THz) polarizers with low reflection and absorption loss and high polarization extinction ratio (PER) based on multilayer metallic gratings filled in a polyimide film were studied theoretically and experimentally.
Hong-Yan Mao +9 more
doaj +1 more source
Low-loss hybrid plasmonic coupler
Optics Express, 2019 We demonstrate a low-loss coupling scheme between a silicon photonic waveguide and a hybrid-plasmonic waveguide. Measured coupling efficiencies reach up to 94% or -0.27 dB. The metal-insulator-semiconductor structure is fabrication-tolerant and adaptable to a wide range of materials including those used in CMOS processes.
Daniel Chelladurai +5 more
openaire +2 more sources
Spontaneous and stimulated Raman scattering in long low loss fibers [PDF]
, 1978 This paper considers the problem of forward Raman scattering process in a single transverse mode fiber. Both pump wave depletion and spontaneous scattering are considered in the analysis.
AuYeung, John, Yariv, Amnon
core +1 more source
Highly confined low-loss plasmons in graphene-boron nitride heterostructures [PDF]
, 2014 Graphene plasmons were predicted to possess ultra-strong field confinement and very low damping at the same time, enabling new classes of devices for deep subwavelength metamaterials, single-photon nonlinearities, extraordinarily strong light-matter ...
Alonso-González, Pablo +12 more
core +2 more sources
A Compact and Low-Loss MMI Coupler Fabricated With CMOS Technology
IEEE Photonics Journal, 2012 We present the design, fabrication, and measurement of a compact and low-loss multimode interference (MMI) coupler based on the silicon nanowire waveguide.
Zhen Sheng +8 more
doaj +1 more source
Mirror reflectometer based on optical cavity decay time [PDF]
, 1984 Described is a reflectometer capable of making reflectivity measurements of low-loss highly reflecting mirror coatings and transmission measurements of low-loss antireflection coatings.
Anderson, Dana Z. +2 more
core +1 more source