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Genetic algorithm designed silicon integrated photonic lens operating at 1550 nm
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10.1063/1.3479046
/content/aip/journal/apl/97/7/10.1063/1.3479046
http://aip.metastore.ingenta.com/content/aip/journal/apl/97/7/10.1063/1.3479046
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

(a) SEM image of the fabricated device. (b) 2D-Multiple scattering calculated at . The field values inside the holes have been set to zero for clarity. (d) 3D-FDTD calculated at .

Image of FIG. 2.
FIG. 2.

(a) Scheme of the experimental set-up for SNOM record. Insert: SNOM probe. (b) Trumpetlike coupler to produce a quasiplanewave front. (c) Topography of the device recorded with the SNOM. (d) Optical image recorded at 1550 nm wavelength with the SNOM 4 nm above the Si surface. (e) FFT corresponding to Fig. 1(d). The light cone has been represented with a circle of radius . (f) obtained from the signals outside the light cone which corresponds to the evanescent waves. (g) obtained from the signals inside the light cone which corresponds to out-of-plane diffracted waves. (h) Optical image recorded at 500 nm above the silicon interface showing only diffracted waves.

Image of FIG. 3.
FIG. 3.

(a) FDTD calculated 4 nm above the Si surface. (b) The same as (a) with the superimposed homogeneous background field. (c) Experimental intensity pattern. (d) Comparison between the calculated and measured longitudinal intensity profiles along . The dashed line represents the location of the transversal intensity profile shown in the next figure. (e) Comparison between the calculated and measured transversal intensity profiles along .

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/content/aip/journal/apl/97/7/10.1063/1.3479046
2010-08-19
2014-04-23
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Genetic algorithm designed silicon integrated photonic lens operating at 1550 nm
http://aip.metastore.ingenta.com/content/aip/journal/apl/97/7/10.1063/1.3479046
10.1063/1.3479046
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