Wavelength tuning of planar photonic crystals by local processing of individual holes.
Tuning of the resonant wavelength of a single hole defect cavity in planar photonic crystals was demonstrated using transmission spectroscopy. Local post-production processing of single holes in a planar photonic crystal is carried out after selectively opening a masking layer by focused ion beam milling. The resonance was blue-shifted by enlargement of selected holes using local wet chemical etching and red-shifted by infiltration with liquid crystals. This method can be applied to precisely control the resonant frequency, and can also be used for mode selective tuning.
Kicken
H H J E
HH
COBRA Research Institute, Eindhoven University of Technology, Eindhoven, The Netherlands. h.h.j.e.kicken@tue.nl
Alkemade
P F A
PF
van der Heijden
R W
RW
Karouta
F
F
Nötzel
R
R
van der Drift
E
E
Salemink
H W M
HW
D003460:Crystallization; D004867:Equipment Design; D007477:Ions; D050866:Liquid Crystals; D049329:Nanostructures; D036103:Nanotechnology / Q000379:methods; D055095:Optics and Photonics; D017785:Photons; D011108:Polymers / Q000737:chemistry; D012031:Refractometry
D007477:Ions; D011108:Polymers