![]() ![]() The order of the spectrum is simply a reference to how far the spectrum is from the centre line. The larger D 1 / D, more energy at 0 th -order. If D 1 < D, usually around 90 fill factor, the intensity would contain difraction orders like this: So the energy depends on the fill-factor D 1 / D of your grating. Similarly a value ☒ is known as second order diffraction and occurs at a shallower angle and is weaker in intensity. Different wavelengths are diffracted at different angles, according to the grating relationship. The phasor approach accounts for the downward slope in the diffraction intensity (blue line) so that the peak near m=1 occurs at a value of θ ever so slightly smaller than we have shown here. Answer: I think you may mean the order of the spectrum produced by a diffraction grating. 100 fill-factor, there will be no higher-order diffractions but only 0 th. Orders 1 and 2 are shown to each side of the direct beam. ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |