The last paper of the late Professor Seung-Man Yang, who was
a past master of colloids and fluid mechanics
Practical patterning technology of the next generation
optical materials, photonic crystals
The mineral opal does not possess any pigments, but it
appears colorful to our eyes. This is because only a particular wavelength is
reflected due to the regular nano-structure of its surface. The material that
causes selective reflection of the light is called photonic crystals.
The deceased Professor Seung-Man Yang and his research team
from KAIST’s Chemical and Biomolecular Engineering Department ha ve developed
micro-pattern technology using photolithographic process. This can accelerate
the commercialization of photonic crystals, which is hailed as the next
generation optics material.