Optical diffraction from lattice images of alloys

Lattice Transitions and Flickering Images in Aged Cu-Mn Alloys

Distinctive "flickering" movements are observed in TEM images of the microstructure of Cu-Mn alloys after aging within the miscibility gap. Analyses of two-beam image extinction and electron diffraction streaks indicate that the underlying tweed and "V-shaped images involve a static displacement field of the type {llO) <1iO>. Atomic force microscopy and other microanalyses show the presence of ...

Optical diffraction of the Z lattice in canine cardiac muscle

Optical diffraction patterns from electron micrographs of both longitudinal and cross sections of normal and anomalous canine cardiac Z bands have been compared. The data indicate that anomalous cardiac Z bands resembling nemaline rods are structurally related to Z bands in showing a repeating lattice common to both. In thin sections transverse to the myofibril axis, both electron micrographs a...

Optical Diffraction

Diffraction of Weighted Lattice Subsets

Diffraction of weighted lattice subsets

A Dirac comb of point measures in Euclidean space with bounded complex weights that is supported on a lattice Γ inherits certain general properties from the lattice structure. In particular, its autocorrelation admits a factorization into a continuous function and the uniform lattice Dirac comb, and its diffraction measure is periodic, with the dual lattice Γ ∗ as lattice of periods. This state...