title: Wavelength tuning of planar photonic crystals by local processing of individual holes.
abstract: 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.
authors.affiliation: COBRA Research Institute, Eindhoven University of Technology, Eindhoven, The Netherlands. h.h.j.e.kicken@tue.nl
authors.forename: H H J E
authors.initials: HH
authors.lastname: Kicken
authors.forename: P F A
authors.initials: PF
authors.lastname: Alkemade
authors.forename: R W
authors.initials: RW
authors.lastname: van der Heijden
authors.forename: F
authors.initials: F
authors.lastname: Karouta
authors.forename: R
authors.initials: R
authors.lastname: Nötzel
authors.forename: E
authors.initials: E
authors.lastname: van der Drift
authors.forename: H W M
authors.initials: HW
authors.lastname: Salemink
mesh_terms: 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
chemical_list: D007477:Ions; D011108:Polymers