Some articles on dark, dark field:
... Annular dark-field imaging is a method of mapping samples in a scanning transmission electron microscope (STEM) ... These images are formed by collecting scattered electrons with an annular dark-field detector ... In traditional dark-field imaging, an objective aperture is placed in the diffraction plane so as to only collect electrons scattering through that ...
... In dark field imaging (also termed diffraction contrast imaging) researchers adjust the excitation of the objective lens so as to produce an image of the diffraction pattern in the middle of the beam ... allows scientists to image diffraction intensities that may be of particular interest (dark field) ... to map out the origin of some particular diffraction intensity, dark field analysis allows one to image (in real-space) where the particular intensity originates from ...
Famous quotes containing the words field and/or dark:
“What though the field be lost?
All is not lost; the unconquerable Will,
And study of revenge, immortal hate,
And courage never to submit or yield:
And what is else not to be overcome?”
—John Milton (16081674)
“The elaborate star-light throws a reflection
On the dark stream,
Till all the eddies gleam;
And thereupon there comes that scream
From terrified, invisible beast or bird:
Image of poignant recollection.”
—William Butler Yeats (18651939)