Focusing with 2D Square Photonic Crystal with Concavo-Concavo Boundaries
N. Palka, W. Ciurapinski and J. Wr√≥bel
Institute of Optoelectronics, Military University of Technology, S. Kaliskiego 2, 00-908 Warsaw, Poland
Full Text PDF
We studied focusing properties of 2D square photonic crystal with concavo-concavo boundaries. The photonic crystal is built by air holes in a uniform: dielectric. The incident plane wave propagates through a section of the photonic crystal and efficient focusing is observed by finite difference time domain simulations. To analyze the properties of photonic crystal we calculated the photonic band structure and equal frequency contours for TE modes. In our simulation we consider influence of geometry of the concave structures on the focusing properties.
DOI: 10.12693/APhysPolA.116.368
PACS numbers: 42.70.Qs, 42.79.Bh, 42.25.Bs