1. Liquid Crystal Institute and Chemical Physics Interdisciplinary Program; Kent State University; Kent OH 44242 USA
2. Departamento de Fisica; Universidade Tecnológica Federal do Parana-Campus Apucarana; RuaMarcílio Dias, 635 86812-460 Apucarana Paraná Brazil
3. Materials and Manufacturing Directorate; Air Force Research Laboratory; Wright-Patterson AFB OH 45433 USA