Results 31 to 40 of about 5,194 (200)
Proton Assisted Insensitive Nuclei Cross Polarization [PDF]
Journal of the American Chemical Society, 2007 This Communication presents a solid-state NMR 15N−13C polarization transfer scheme applicable at high B0 and high MAS frequencies, requiring moderate rf powers and mixing time (1−6 ms). The sequence, PAIN-CP, involves the abundant nearby protons in the heteronuclear recoupling dynamics and provides a new tool for obtaining long distance 15N−13C ...
Józef R, Lewandowski +2 more
openaire +2 more sources
A polarization-insensitive plasmonic photoconductive terahertz emitter [PDF]
AIP Advances, 2017 We present a polarization-insensitive plasmonic photoconductive terahertz emitter that uses a two-dimensional array of nanoscale cross-shaped apertures as the plasmonic contact electrodes. The geometry of the cross-shaped apertures is set to maximize optical pump absorption in close proximity to the contact electrodes.
Xurong Li +2 more
openaire +4 more sources
Polarization insensitivity of AlGaAs/GaAs interdiffused quantum wells [PDF]
, 1998 Modeling is used to show that interdiffusion can generate a polarization independent parabolic-like quantum well. Criteria to achieve the parabolic-like quantum wells by interdiffusion are discussed. The results indicated that interdiffused quantum wells
Li, EHerbert +2 more
core +1 more source
Polarization insensitivity electromagnetically induced reflection in graphene metasurface
Journal of Measurement Science and Instrumentation, 2021 The electromagnetically induced reflection（EIR） effect of graphene metamaterials has been investigated by finite difference time domain（FDTD） method.
WANG Jin +3 more
doaj
Applied Sciences, 2019 A numerical solution for the broadband planar-lightwave-circuit (PLC) splitter with a variable splitting ratio based on asymmetric three waveguides weighted by the Blackman weighting function is designed for passive optical network applications with ...
Hseng-Tsong Wang +2 more
doaj +1 more source
Polarization Insensitivity in Interdiffused, Strained InGaAs/InP Quantum Wells
, 1996 Theoretical results are presented showing how quantum well disordering affects the TE and TM absorption coefficient spectra of In0.53Ga0.47As/InP single quantum wells. An error function distribution is used to model the constituent atom composition after
Joseph Micallef +2 more
core +1 more source
Broadband polarization-insensitive arrayed waveguide gratings for Raman spectroscopy [PDF]
, 2011 We present two arrayed waveguide gratings fabricated in silicon-oxynitride for near-infrared Raman spectroscopy. Our devices exhibit very low losses and polarization insensitivity over a large spectral range of 156 nm and 214 nm ...
Driessen, A. +13 more
core +1 more source
Broad-Band Polarization-Insensitive Metasurface Holography with a Single-Phase Map
, 2022 The remarkable potential of metasurface holography promises revolutionary advancements for imaging, chip-integrated augmented/virtual reality (AR/VR) technology, and flat optical displays.
Joohoon Kim (1273089) +9 more
core +2 more sources
Sensors, 2023 Most of the existing metasurfaces are effective for the incident wave with the specific circularly polarized (CP) or linearly polarized (LP) state, that is the polarization-sensitive metasurface.
Ling Wang +7 more
doaj +1 more source
Optical trapping and manipulating with a transmissive and polarization‐insensitive metalens
Nanophotonics, 2023 Abstract Trapping and manipulating micro‐objects and achieving high‐precision measurements of tiny forces and displacements are of paramount importance in both physical and biological research. While conventional optical tweezers rely on tightly focused beams generated by bulky microscope systems, the emergence of flat lenses ...
Dongni Yang +6 more
openaire +3 more sources