%0 Journal Article %T Fabrication of two-dimensional periodic TiO2 pillar arrays by multi-beam laser interference lithography %A Hiroyo Segawa %A Hiroaki Misawa %J Natural Science %P 176-180 %@ 2150-4105 %D 2009 %I Scientific Research Publishing %R 10.4236/ns.2009.13022 %X Two-dimensional (2D) periodic TiO2 pillar arrays, applicable to photonic crystals and micro-channels, were fabricated by direct patterning of a TiO2-organic hybrid material by multi-beam laser interference lithography and calcination of hybrid patterns. 2D periodic pillars of a TiO2¨C organic hybrid material were prepared by irra-diation with the interference pattern of femto-second laser beams and removal of the non- irradiated portions. Two types of periodic pillar arrays, standing pillars and top-gathering pillars (four pillars gathered at the top), were obtained, depending on laser irradiation conditions. After calcination of TiO2¨Corganic hybrid pillars, TiO2 pillar arrays were obtained without collapse. %K Lithography %K Capillary Force %K Assembly %U http://www.scirp.org/journal/PaperInformation.aspx?PaperID=1005