We experimentally generate different types of two-dimensional self-trapped photonic lattices in a photorefractive medium and analyze the induced refractive index change using two different methods. One method gives the first experimental Fourier space analysis of both linear and nonlinear self-trapped photonic lattices with periodic phase modulation using partially spatially incoherent multiband excitation of the lattice modes. The other method utilizes the waveguiding properties of the lattice to achieve a real space analysis of the induced refractive index change. The results of both methods are compared.
We review some of our recent results on experimental light-induced periodic structures and their role in controlling light ::: in discrete optics considering advanced features based on phase engineering and multiplexing of optically-induced lattices. ::: While in the past only rather simple geometries like diamond, square, or hexagonal lattices were studied, we focus ::: onto more complex photonic structures. Among them, we will present anisotropic triangular lattices, superlattices and ::: three-dimensional lattices. We also study the propagation and localization of light in these structures - from simple ::: waveforms to complex topological structures carrying phase dislocations.
ABSTRACTUNC-45A is an ubiquitously expressed protein highly conserved throughout evolution. Most of what we currently know about UNC-45A pertains to its role as a regulator of the actomyosin system...