Ultralow power all-optical diode in photonic crystal heterostructures with broken spatial inversion symmetry

Cuicui Lu; Xiaoyong Hu; Yingbo Zhang; Zhiqiang Li; Xin'An Xu; Hong Yang; Qihuang Gong

doi:10.1063/1.3617433

Ultralow power all-optical diode in photonic crystal heterostructures with broken spatial inversion symmetry

Cuicui Lu
, Xiaoyong Hu^*
, Yingbo Zhang
, Zhiqiang Li
, Xin'An Xu
, Hong Yang
, Qihuang Gong

^*Corresponding author for this work

Peking University

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

69 Citations (Scopus)

Abstract

We experimentally realize an all-optical diode in a photonic crystal heterostructure with broken spatial inversion symmetry. The physical mechanism is attributed to bandgaps only for certain wavevectors and the transition between different electromagnetic Bloch modes, without any nonlinearity and high power requirement. An ultralow photon intensity of 50 kW/cm² and an ultrahigh transmission contrast of over 10³ are reached simultaneously. Compared with previous reported all-optical diodes, the operating power is reduced by seven orders of magnitude, while the transmission contrast is enlarged by two orders of magnitude. This approach may open a way for the study of integrated photonic devices.

Original language	English
Article number	051107
Journal	Applied Physics Letters
Volume	99
Issue number	5
DOIs	https://doi.org/10.1063/1.3617433
Publication status	Published - 1 Aug 2011
Externally published	Yes

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abstract = "We experimentally realize an all-optical diode in a photonic crystal heterostructure with broken spatial inversion symmetry. The physical mechanism is attributed to bandgaps only for certain wavevectors and the transition between different electromagnetic Bloch modes, without any nonlinearity and high power requirement. An ultralow photon intensity of 50 kW/cm2 and an ultrahigh transmission contrast of over 103 are reached simultaneously. Compared with previous reported all-optical diodes, the operating power is reduced by seven orders of magnitude, while the transmission contrast is enlarged by two orders of magnitude. This approach may open a way for the study of integrated photonic devices.",

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AU - Lu, Cuicui

AU - Hu, Xiaoyong

AU - Zhang, Yingbo

AU - Li, Zhiqiang

AU - Xu, Xin'An

AU - Yang, Hong

AU - Gong, Qihuang

PY - 2011/8/1

Y1 - 2011/8/1

N2 - We experimentally realize an all-optical diode in a photonic crystal heterostructure with broken spatial inversion symmetry. The physical mechanism is attributed to bandgaps only for certain wavevectors and the transition between different electromagnetic Bloch modes, without any nonlinearity and high power requirement. An ultralow photon intensity of 50 kW/cm2 and an ultrahigh transmission contrast of over 103 are reached simultaneously. Compared with previous reported all-optical diodes, the operating power is reduced by seven orders of magnitude, while the transmission contrast is enlarged by two orders of magnitude. This approach may open a way for the study of integrated photonic devices.

AB - We experimentally realize an all-optical diode in a photonic crystal heterostructure with broken spatial inversion symmetry. The physical mechanism is attributed to bandgaps only for certain wavevectors and the transition between different electromagnetic Bloch modes, without any nonlinearity and high power requirement. An ultralow photon intensity of 50 kW/cm2 and an ultrahigh transmission contrast of over 103 are reached simultaneously. Compared with previous reported all-optical diodes, the operating power is reduced by seven orders of magnitude, while the transmission contrast is enlarged by two orders of magnitude. This approach may open a way for the study of integrated photonic devices.

UR - https://www.scopus.com/pages/publications/80051581744

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VL - 99

JO - Applied Physics Letters

JF - Applied Physics Letters

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Ultralow power all-optical diode in photonic crystal heterostructures with broken spatial inversion symmetry

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