3 ms·
IIRC, thermal light sources have a coherence length of about 10µm. Otherwise reflection holograms wouldn't work when viewed in a thermal light source. Also: ht
by chopin 6y ago
IIRC, thermal light sources have a coherence length of about 10µm. Otherwise reflection holograms wouldn't work when viewed in a thermal light source.
Also: https://en.wikipedia.org/wiki/Thin-film_interference https://en.wikipedia.org/wiki/Thin-film_interference