Two-dimensional photonic crystal polarizer modulated by silicon resin

Chunhua Tan; Xuguang Huang

doi:10.1117/12.746417

19 November 2007 Two-dimensional photonic crystal polarizer modulated by silicon resin

Chunhua Tan, Xuguang Huang

Proceedings Volume 6782, Optoelectronic Materials and Devices II; 67822K (2007) https://doi.org/10.1117/12.746417
Event: Asia-Pacific Optical Communications, 2007, Wuhan, China

Abstract

Photonic crystals(PCs)have many potential applications because of their ability to control light-wave propagation. In this paper, we theoretically investigate the tunability of light propagation in photonic crystal waveguides in two-dimensional photonic crystals with square lattices composed of heat-resistant silicon resin. Waveguides can be obtained by the infiltration of silicon resin into air regions in two-dimensional photonic crystals composed of air holes with square lattices of dielectric cylinders. The refractive index of silicon resin can be changed by manipulating the temperature of the sample. Numerical simulation by solving Maxwell's equations using the plane wave expansion(PWE) method shows that the band gaps can be continuously tuned by silicon resin, accordingly the light propagation in photonic crystal waveguides can be controlled. The band gap is analyzed in the temperature range of 20°C-120°C. In our work, the gap map for a square lattice of dielectric cylinders is also simulated. The method can separate TM- and TE-polarized modes in the waveguide. Such a mechanism of band gap adjustment should open up a new application for designing field-sensitive polarizer in photonic integrated circuits.

Citation Download Citation

Chunhua Tan and Xuguang Huang "Two-dimensional photonic crystal polarizer modulated by silicon resin", Proc. SPIE 6782, Optoelectronic Materials and Devices II, 67822K (19 November 2007); https://doi.org/10.1117/12.746417

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KEYWORDS

Silicon

Photonic crystals

Waveguides

Polarizers

Dielectrics

Light wave propagation

Modulation

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