  In the past decades, DNA has been intensely studied and exploited in
different research areas of nanoscience and nanotechnology. At first glance,
DNA-based nanophotonics seems to deviate quite far from the original goal of
Nadrian Seeman, the founder of DNA nanotechnology, who hoped to organize
biological entities using DNA in high-resolution crystals. As a matter of fact,
DNA-based nanophotonics does closely follow his central spirit. That is, apart
from being a genetic material for inheritance, DNA is also an ideal material
for building molecular devices.
