Figure 1
Photograph (a) and block diagram sketch (b) of the online UV-visible microspectrophotometer. A-1: Hg-Xe lamp; B-1: concave mirrors; B-2: two sets of filter folders; C-1,2: first and second slits in the horizontal direction; C-3,4: first and second diffraction gratings; C-5: third slit in the horizontal and vertical direction; D-1: flat mirror for changing the optical path (insertion and removal); D-2: CCD camera for tuning the monochromator; D-3,4: aspherical mirror; D-5: prism flat mirror; E-1: flat mirror for changing optical path (insertion and removal); E-2,3: convex lens; E-4: CCD camera for centering of the sample crystal; E-5: fiber-optic light for illuminating the sample; F-1: prism flat mirror; F-2,3: aspherical mirror; F-4: cross-slit diaphragm for confocal system; F-5: aspherical mirror; F-6: convex lens; F-7: photomultiplier tube. The beam size of the measurement light is defined by slit C-5, and can be adjusted to a minimum of 50 µm × 50 µm.  [article HTML]