Polarization-Insensitive Silicon Photonic Variable Optical Attenuator
PhotonicsWe propose and demonstrate a polarization-insensitive silicon photonic variable optical attenuator. The designed device uses a two-dimensional apodized grating coupler as a surface-normal coupling interface, which has the advantages of low-cost fiber ...
Meixin Li +7 more
doaj +1 more source
Broadband Polarization-Independent Directional Coupler Using Asymmetric-Waveguides
IEEE Photonics Journal, 2019 A high-performance broadband polarization-independent directional coupler is designed by using asymmetric-waveguides configuration on a silicon-on-insulator platform.
Qinghuan Xu +6 more
doaj +1 more source
Nanophotonics, 2021 Interference usually occurs between two non-orthogonally polarized light beams. Hence, metasurface enabled polarization multiplexing is generally conducted under two orthogonal polarization states to realize independent intensity and/or phase modulations.
Ren Renyuan +7 more
doaj +1 more source
Adiabaticity Engineered Silicon Polarization Independent 3-dB Coupler for the O-Band
IEEE Photonics Journal, 2023 We demonstrate a compact and broadband polarization independent 3-dB coupler for the O-band on silicon-on-insulator platform. Using the multi-parameter adiabaticity engineering protocol, unwanted coupling between eigenmodes in mode evolution couplers are
Hung-Ching Chung +4 more
doaj +1 more source
Using tensor properties of four wave mixing in semiconductor optical amplifiers for polarization independent wavelength conversion or pump suppression [PDF]
, 1996 Summary form only given. Wavelength conversion by four-wave mixing (FWM) in semiconductor optical amplifiers (SOAs) has several advantages, including transparency to the modulation format and bit rate.
Hunziker, Guido +5 more
core
Double-lepton polarizations in (B -> l^+ l^- gamma) decay
, 2004 Double-lepton polarization asymmetries in the (B -> l^+ l^- gamma) decay are calculated using the most general, model independent form of the effective Hamiltonian including all possible forms of the interaction.
A. I. Vainshtein +5 more
core +1 more source
Long‐term hippocampal alterations and cognitive impairment in a murine model of surgical sepsis
FEBS Open Bio, EarlyView.Using a mouse model of surgical sepsis, we tested long‐term memory and analyzed the transcriptome of single cells isolated from the hippocampus. Survivor mice showed worse memory, loss of certain brain cell subpopulations, and abnormal immune cell activity—suggesting that post‐sepsis brain alterations may be linked to cognitive deficits.
Dong Seong Cho +4 more
wiley +1 more source
Classical and quantum properties of cylindrically polarized states of light
, 2010 We investigate theoretical properties of beams of light with non-uniform polarization patterns. Specifically, we determine all possible configurations of cylindrically polarized modes (CPMs) of the electro-magnetic field, calculate their total angular ...
Aiello +24 more
core +1 more source
YIPFα1A expression is regulated by multilayered molecular mechanisms
FEBS Open Bio, EarlyView.YIPFα1A, a five‐pass Golgi protein, is regulated at multiple layers. (1) Rare‐codon enrichment drives translation‐coupled mRNA decay. (2) A proximal 3′‐UTR element stabilizes mRNA. (3) A distal 3′‐UTR element included by alternate poly(A) site usage represses translation, which can be overridden by the proximal 3′‐UTR element.
Tokio Takaji +2 more
wiley +1 more source
Neutron-Deuteron System and Photon Polarization Parameter at Thermal Neutron Energies [PDF]
, 2007 Effective Field Theory(EFT) is, the unique, model independent and systematic low-energy version of QCD for processes involving momenta below the pion mass.
H. Sadeghi, J. S. Merritt
core +1 more source