[OPTICAL REVIEW Vol. 6, No. 5 (1999) 396-398]
Microfabrication and Characteristics of Two-Dimensional Photonic Crystal Structures in Vitreous Silica
Hong-Bo SUN,1 Ying XU,2 Shigeki MATSUO2 and Hiroaki MISAWA2,*
1Satellite Venture Business Laboratory, 2Department of Ecosystem Engineering, Graduate School of Engineering, The University of Tokushima, 2-1 Minamijyosanjima, Tokushima, 770-8506 Japan
(Received May 19; Accepted May 24, 1999)
We report for the first time a laser microfabrication and its characteristics of photonic crystal structure in vitreous silica. It is two-dimensional triangle lattices composed of hollow cylinders with a periodicity of approximately 1.2 μm. Infrared spectroscopic measurements revealed dielectric-periodicity-matched transmission valleys centering approximately at 4100 cm-1 for H-polarization and 4000 cm-1 for E-polarization, respectively.
Key words : photonic crystal, photonic band gap, vitreous silica, femtosecond laser, laser-microfabrication