Title :
Laser polymerization of Photonic Crystals for collimation of beams at visible wavelengths
Author :
Maigyte, L. ; Rutkauskas, M. ; Malinauskas, M. ; Mizeikis, V. ; Juodkazis, S. ; Peckus, M. ; Sirutkaitis, V. ; Staliunas, K.
Author_Institution :
Dept. de Fis. i Eng. Nucl., Univ. Politec. de Catalunya, Barcelona, Spain
Abstract :
Three-dimensional photonic crystals with woodpile structure are demonstrated to exhibit collimation of light beams behind the photonic structure. Woodpile structure photonic crystals with longitudinal modulation periods in a range of 7.4 - 7.8 μm, and transverse periods of 1 μm were fabricated using laser multi-photon polymerization technique in a negative-tone photoresist. As expected from theoretical predictions, the beams propagating along the axis of period variation collimate behind the crystal, which is a first experimental observation of the phenomenon.
Keywords :
laser beams; laser materials processing; optical collimators; optical fabrication; optical polymers; photonic crystals; polymerisation; laser multiphoton polymerization technique; laser polymerization; light beam collimation; longitudinal modulation; negative tone photoresist; photonic crystals; visible wavelengths; woodpile structure; Fabrication; Laser beams; Optical beams; Photonic crystals; Polymers; Resists; Three dimensional displays; 3D photonic crystal; multi-photon polymerization; optical range; self-collimation; spatial dispersion; woodpile structures;
Conference_Titel :
Transparent Optical Networks (ICTON), 2011 13th International Conference on
Conference_Location :
Stockholm
Print_ISBN :
978-1-4577-0881-7
Electronic_ISBN :
2161-2056
DOI :
10.1109/ICTON.2011.5971147
