LabAdviser/314/Microscopy 314-307/Postprocessing/Lattice fringes: Difference between revisions
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== Lattice spacing in real space == | == Lattice spacing in real space == | ||
[[File:Lattice-fringes_real_1.png|600px|thumb| | [[File:Lattice-fringes_real_1.png|600px|thumb|left|Fig. 1:Lattice fringe image of InAs/InP with profile.]]<br clear="all" /> | ||
This image show a nice lattice fringe image of a InAs/InP nanowire. The distance of the lattice fringes running perpendicular to the nanowire direction can be measured by ‘right clicking’ on the image and choose the ‘profile’ icon (the ‘wavy’ icon below ‘A’ in the image. The you draw a line in the image and an intensity profile turns up. You can measure the distance of interest in the profile view. In this example 10 lattice space distances are measured to increase the measurement precision (d=3.54nm/10 = 3.54Å). If your image is a bit noisy the intensity profile can be averaged by ‘double clicking’ on the drawn profile in the image and enter the integration width (in pixels). An example of that is shown below: | This image show a nice lattice fringe image of a InAs/InP nanowire. The distance of the lattice fringes running perpendicular to the nanowire direction can be measured by ‘right clicking’ on the image and choose the ‘profile’ icon (the ‘wavy’ icon below ‘A’ in the image. The you draw a line in the image and an intensity profile turns up. You can measure the distance of interest in the profile view. In this example 10 lattice space distances are measured to increase the measurement precision (d=3.54nm/10 = 3.54Å). If your image is a bit noisy the intensity profile can be averaged by ‘double clicking’ on the drawn profile in the image and enter the integration width (in pixels). An example of that is shown below: | ||
[[File:Lattice-fringes_real_2.png|500px|thumb| | [[File:Lattice-fringes_real_2.png|500px|thumb|left|Fig. 2:Profile measure.]]<br clear="all" /> | ||
== Lattice spacing in reciprocal space == | == Lattice spacing in reciprocal space == | ||