MEASUREMENT – CONTROL DEVICES PREVIOUS CONTENTS NEXT FABRICATION OF PHOTONIC STRUCTURES PURPOSE Photonic microstructures enables to control propagation of light and produce effects that are impossible with conventional optics. Amazing facilities provide one type of the photonic structures – antireflection microstructures that forbid propagation of a certain frequency range of light. PROPERTIES Photonic antireflection microstructures few times decrease transmittance of the light in the visible or infrared spectrum range irrespective of the angle of the incident light. Location of AR band can be changed with periodicity, deepness and the shape of the structures. APPLICATION Photonic microstructures have a potential of application in the design of novel optoelectronic devices: thresholdless lasers, single-mode light emitting diodes, waveguides in the optical domain filters, polarizers, planar antenna substrates. Antireflection microstructures ensure excellent antireflection properties of the flat panel displays, night vision devices etc. Fabricated photonic microstructures can be easily replicated into large area polymer film without big changes of the optical properties. THE LEVEL OF TECHNOLOGY COMPLETION Fabrication of the defined optical parameters photonic microstructures in the silicon substrate and replication of them into large area polymer film. POSSIBLE CO-OPERATION Development of the new ways for the fabrication and industrial application of the photonic microstructures: nanoimprint litography, laser interference litography and reactive ion etching, hot embossing into polymer films. CONTACTS: KAUNAS UNIVERSITY OF TECHNOLOGY Institute of Physical Electronics Savanoriu av. 271, LT-3009 Kaunas, Lithuania Tel. +370 37 313432 Fax +370 37 314423 E-mail: fei@ktu.lt