Hwp. Koops et al., Two-dimensional photonic crystals produced by additive nanolithography with electron beam-induced deposition act as filters in the infrared, MICROEL ENG, 57-8, 2001, pp. 995-1001
Three-dimensional additive nanolithography with electron beam-induced depos
ition is suited for rapid-prototyping of photonic crystals. It is used to c
onstruct rods of 3 mum in height from nanocrystalline material having an as
pect ratio > 15. The deposited rods have an edge roughness of 2 nm. The ref
ractive index of the nanocystalline material is 2.8. The placement accuracy
is 11 nm. Mirrors, band-filters and various designs are generated. Optical
characterisation shows the filter action, but light loss from the PMMA wav
e guide into the underlying SiO2-cladding so far limits the efficiency of t
he mirrors. (C) 2001 Published by Elsevier Science B.V.