Hello,
I have a question about the micromirror reflectivity at various wavelengths in the visible range. Is the reflection spectrum consistent with that of regular aluminum, or is there some sort of dielectric reflective coating on top?
The documentation on "DMD optical efficiency for visible wavelengths" states that the micromirrors are "aluminum based," and that they are "nominally 89% reflective in the visible range." However, I need to know how thermal loads compare at both 532nm and 638nm, so I need to know if/how the reflectivity differs between those two wavelengths.
Thank you!
-S