Ultrahigh-contrast and wideband nanoscale photonic crystal all-optical diode

Cuicui Lu; Xiaoyong Hu; Hong Yang; Qihuang Gong

doi:10.1364/OL.36.004668

Ultrahigh-contrast and wideband nanoscale photonic crystal all-optical diode

Cuicui Lu, Xiaoyong Hu^*, Hong Yang, Qihuang Gong

^*Corresponding author for this work

Peking University

Research output: Contribution to journal › Article › peer-review

53 Citations (Scopus)

Abstract

We experimentally realize a nanoscale all-optical diode in a photonic crystal heterostructure with broken spatial inversion symmetry, performing independent of optical nonlinearity. The physical mechanism lies in unique dispersion relations of the photonic crystal and the transition of incident light between different electromagnetic Bloch modes. An ultrahigh transmission contrast of 10³ order, a large operating bandwidth of over 50 nm, and an ultralow photon intensity of less than 10kW/cm² are reached simultaneously.

Original language	English
Pages (from-to)	4668-4670
Number of pages	3
Journal	Optics Letters
Volume	36
Issue number	23
DOIs	https://doi.org/10.1364/OL.36.004668
Publication status	Published - 1 Dec 2011
Externally published	Yes

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abstract = "We experimentally realize a nanoscale all-optical diode in a photonic crystal heterostructure with broken spatial inversion symmetry, performing independent of optical nonlinearity. The physical mechanism lies in unique dispersion relations of the photonic crystal and the transition of incident light between different electromagnetic Bloch modes. An ultrahigh transmission contrast of 103 order, a large operating bandwidth of over 50 nm, and an ultralow photon intensity of less than 10kW/cm2 are reached simultaneously.",

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AU - Gong, Qihuang

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AB - We experimentally realize a nanoscale all-optical diode in a photonic crystal heterostructure with broken spatial inversion symmetry, performing independent of optical nonlinearity. The physical mechanism lies in unique dispersion relations of the photonic crystal and the transition of incident light between different electromagnetic Bloch modes. An ultrahigh transmission contrast of 103 order, a large operating bandwidth of over 50 nm, and an ultralow photon intensity of less than 10kW/cm2 are reached simultaneously.

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Ultrahigh-contrast and wideband nanoscale photonic crystal all-optical diode

Abstract

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