Fractal independently tunable multichannel filters

A simple fractal rule has been presented in this letter for the construction of one-dimensional photonic crystals with orthogonal defect states, which can be used as independently tunable multichannel filters. Each channel of the filters can be tuned independently. It overcomes the difficulty and provides an easy way for the design of multichannel filter with specific channels. In order to prove the validity of such a fractal rule, a series of two-channel filters have been fabricated by using a low frequency magnetron sputtering system. The experimental results agree with theoretical ones very well.

[1]  Wei Lu,et al.  Concept of a high-resolution miniature spectrometer using an integrated filter array. , 2007, Optics letters.

[2]  Dong Chen,et al.  Microstrip filter with H-shaped fractal , 2006 .

[3]  Wei Lu,et al.  Integrated optical filter arrays fabricated by using the combinatorial etching technique. , 2006, Optics letters.

[4]  Yousong Jiang,et al.  Substrate temperature effect on the refractive index and a two-step film method to detect small inhomogeneities in optical films. , 2005, Applied optics.

[5]  W. Furlan,et al.  Cantor-like fractal photonic crystal waveguides , 2004, physics/0412093.

[6]  W. Lu,et al.  Multiple channeled phenomena in heterostructures with defects mode , 2004 .

[7]  Takemura Kenichi,et al.  Modulated structure of solid iodine during its molecular dissociation under high pressure , 2003, Nature.

[8]  Hong Lu,et al.  Resonance transmission modes in dual-periodical dielectric multilayer films , 2003 .

[9]  A. Lavrinenko,et al.  Propagation of classical waves in nonperiodic media: scaling properties of an optical Cantor filter. , 2002, Physical review. E, Statistical, nonlinear, and soft matter physics.

[10]  M Bertolotti,et al.  Spectral transmission properties of a self-similar optical Fabry-Perot resonator. , 1994, Optics letters.

[11]  Jun Uozumi,et al.  Fresnel diffraction by one-dimensional regular fractals , 1992 .

[12]  D. Jaggard,et al.  Reflection from fractal multilayers. , 1990, Optics letters.

[13]  Beasley,et al.  Fractal multilayered superconductors. , 1987, Physical review. B, Condensed matter.

[14]  Benoit B. Mandelbrot,et al.  Fractal Geometry of Nature , 1984 .