Bloch-mode extraction from near-field data in periodic waveguides

Sangwoo Ha; Andrey A. Sukhorukov; Kokou B. Dossou; Lindsay C. Botten; C. Martijn De Sterke; Yuri S. Kivshar

doi:10.1364/OL.34.003776

Bloch-mode extraction from near-field data in periodic waveguides

Sangwoo Ha, Andrey A. Sukhorukov, Kokou B. Dossou, Lindsay C. Botten, C. Martijn De Sterke, Yuri S. Kivshar

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20 Citations (Scopus)

Abstract

We demonstrate that the spatial profiles of both propagating and evanescent Bloch modes in a periodic structure can be extracted from a single measurement of an electric field at the specified optical wavelength. We develop a systematic extraction procedure by extending the concepts of high-resolution spectral methods previously developed for temporal data series to take into account the symmetry properties of Bloch modes simultaneously at all spatial locations. We illustrate the application of our method to a photonic crystal waveguide interface and confirm its robustness in the presence of noise.

Original language	English
Pages (from-to)	3776-3778
Number of pages	3
Journal	Optics Letters
Volume	34
Issue number	24
DOIs	https://doi.org/10.1364/OL.34.003776
Publication status	Published - 15 Dec 2009

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abstract = "We demonstrate that the spatial profiles of both propagating and evanescent Bloch modes in a periodic structure can be extracted from a single measurement of an electric field at the specified optical wavelength. We develop a systematic extraction procedure by extending the concepts of high-resolution spectral methods previously developed for temporal data series to take into account the symmetry properties of Bloch modes simultaneously at all spatial locations. We illustrate the application of our method to a photonic crystal waveguide interface and confirm its robustness in the presence of noise.",

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AU - Ha, Sangwoo

AU - Sukhorukov, Andrey A.

AU - Dossou, Kokou B.

AU - Botten, Lindsay C.

AU - De Sterke, C. Martijn

AU - Kivshar, Yuri S.

PY - 2009/12/15

Y1 - 2009/12/15

N2 - We demonstrate that the spatial profiles of both propagating and evanescent Bloch modes in a periodic structure can be extracted from a single measurement of an electric field at the specified optical wavelength. We develop a systematic extraction procedure by extending the concepts of high-resolution spectral methods previously developed for temporal data series to take into account the symmetry properties of Bloch modes simultaneously at all spatial locations. We illustrate the application of our method to a photonic crystal waveguide interface and confirm its robustness in the presence of noise.

AB - We demonstrate that the spatial profiles of both propagating and evanescent Bloch modes in a periodic structure can be extracted from a single measurement of an electric field at the specified optical wavelength. We develop a systematic extraction procedure by extending the concepts of high-resolution spectral methods previously developed for temporal data series to take into account the symmetry properties of Bloch modes simultaneously at all spatial locations. We illustrate the application of our method to a photonic crystal waveguide interface and confirm its robustness in the presence of noise.

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U2 - 10.1364/OL.34.003776

DO - 10.1364/OL.34.003776

M3 - Article

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EP - 3778

JO - Optics Letters

JF - Optics Letters

IS - 24

ER -

Bloch-mode extraction from near-field data in periodic waveguides

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