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Add-drop filters in three-dimensional layer-by-layer photonic crystals using waveguides and resonant cavities
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10.1063/1.2400398
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    Affiliations:
    1 Department of Electrical and Computer Engineering, Iowa State University, Ames, Iowa 50011 and Microelectronics Research Center, Iowa State University, Ames, Iowa 50011
    2 Departments of Electrical and Computer Engineering, Iowa State University, Ames, Iowa 50011; Department of Physics and Astronomy, Iowa State University, Ames, Iowa 50011; Microelectronics Research Center, Iowa State University, Ames, Iowa 50011; and Ames Laboratory, Iowa State University, Ames, Iowa 50011
    3 Department of Electrical and Computer Engineering, Iowa State University, Ames, Iowa 50011; Ames Laboratory, Iowa State University, Ames, Iowa 50011; and Microelectronics Research Center, Iowa State University, Ames, Iowa 50011
    4 Ames Laboratory, Iowa State University, Ames, Iowa 50011 and Department of Physics and Astronomy, Iowa State University, Ames, Iowa 50011
    a) Electronic mail: biswasr@iastate.edu
    Appl. Phys. Lett. 89, 231103 (2006); http://dx.doi.org/10.1063/1.2400398
/content/aip/journal/apl/89/23/10.1063/1.2400398
http://aip.metastore.ingenta.com/content/aip/journal/apl/89/23/10.1063/1.2400398
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

Configuration of the PC with separation between the waveguides and cavity of length , shown in an cross section.

Image of FIG. 2.
FIG. 2.

Measured transmission for the straight waveguide (solid) compared to transmission for waveguides separated by , with (dotted) and without a cavity of (dashed). The cavity-induced resonance is below the straight guide.

Image of FIG. 3.
FIG. 3.

Measured transmission for a cavity of length (dashed) displaying three resonant frequencies, compared to the straight waveguide and no cavity .

Image of FIG. 4.
FIG. 4.

Effect of reducing cavity confinement on the resonant mode at . The PC size is decreased from 12 layers to 4 layers above the cavity, corresponding to the geometry of Fig. 3.

Image of FIG. 5.
FIG. 5.

FDTD simulations of the transmission through the waveguides separated by and coupled by a cavity (length ), four layers above the waveguides. The input guide was excited by a pulsed source to obtain the transmission in the output waveguide.

Image of FIG. 6.
FIG. 6.

-field intensities in the plane containing the input waveguide, exit waveguide, and the cavity. Simulations are for the resonant frequency of at 1000, 3000, 5000, and 9000 time steps. The intensity scale is logarithmic.

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/content/aip/journal/apl/89/23/10.1063/1.2400398
2006-12-04
2014-04-20
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Add-drop filters in three-dimensional layer-by-layer photonic crystals using waveguides and resonant cavities
http://aip.metastore.ingenta.com/content/aip/journal/apl/89/23/10.1063/1.2400398
10.1063/1.2400398
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