Now showing items 1-6 of 6
LFA-1/ICAM-1 ligation in human T cells promotes Th1 polarization through a GSK3β signaling–dependent notch pathway
In this study, we report that the integrin LFA-1 cross-linking with its ligand ICAM-1 in human PBMCs or CD4+ T cells promotes Th1 polarization by upregulating IFN-γ secretion and T-bet expression. LFA-1 stimulation in ...
All-optical active THz metasurfaces for ultrafast polarization switching and dynamic beam splitting
Miniaturized ultrafast switchable optical components with an extremely compact size and a high-speed response will be the core of next-generation all-optical devices instead of traditional integrated circuits, which are ...
Tunable electromagnetically induced transparency in coupled three-dimensional split-ring-resonator metamaterials
Metamaterials have recently enabled coupling induced transparency due to interference effects in coupled subwavelength resonators. In this work, we present a three dimensional (3-D) metamaterial design with six-fold ...
Giant enhancement in Goos-Hänchen shift at the singular phase of a nanophotonic cavity
In this letter, we experimentally demonstrate thirtyfold enhancement in Goos-Hänchen shift at the Brewster angle of a nanophotonic cavity that operates at the wavelength of 632.8 nm. In particular, the point-of-darkness ...
Coherent control of Snell’s law
We demonstrate coherent control of the generalized Snell’s law in ultrathin gradient metasurfaces constructed by an array of V-shaped slot nanoantennas.
Coherent control of birefringence and optical activity
We show that polarization effects due to anisotropy and chirality affecting a wave propagating through a thin slab of material can be controlled by another electromagnetic wave. No nonlinearity of the metamaterial slab is ...