Eur. Phys. J. Appl. Phys.
Volume 35, Number 3, September 2006
|Page(s)||191 - 194|
|Section||Laser and Optics|
|Published online||02 September 2006|
Light collimator made of photonic crystal by partial band gap
Department of Physics, Zhenjiang Watercraft College, Zhenjiang, 212003, China
2 Department of Optical Engineering, Jiangsu University, Zhenjiang, 212013, China
Corresponding author: email@example.com
Revised: 21 May 2006
Accepted: 17 June 2006
Published online: 2 September 2006
Basing on finite-difference time-domain method and partial band gap effect of photonic crystal, we obtain collimated light beams from point optical source and two-dimensional photonic crystal structure. The diffusive light with some special frequencies can be collimated and propagate along a special direction within photonic crystal structure. Our study presents a new method to make light collimator.
PACS: 42.70.Qs – Photonic bandgap materials / 41.85.Si – Beam collimators, monochromators / 42.15.Eq – Optical system design
© EDP Sciences, 2006
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