Subwavelength imaging of a point source based on two-dimensional photonic crystals

Hongliang Ma; Binming Liang; Songlin Zhuang; Jiabi Chen; Qiang Jiang; Junwei Ding

doi:10.1364/OL.41.003833

Subwavelength imaging of a point source based on two-dimensional photonic crystals

Hongliang Ma, Binming Liang^*, Songlin Zhuang, Jiabi Chen, Qiang Jiang, Junwei Ding

^*Corresponding author for this work

University of Shanghai for Science and Technology

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

16 Citations (Scopus)

Abstract

A new two-dimensional (2D) photonic crystal (PC) structure with effective refractive index approaching -1, consisting of periodic array air holes in silicon, is proposed. The light radiated from a point source can form an image through a single wedge PC. Numerical results show that the half-width of the image reaches 0.44λ, which is lower than half of the incident wavelength. In addition, the light through the combination of two of the same PCs can also form subwavelength imaging of which the half-width reaches 0.67λ, and the image almost flipped 180° compared with a point source.

Original language	English
Pages (from-to)	3833-3835
Number of pages	3
Journal	Optics Letters
Volume	41
Issue number	16
DOIs	https://doi.org/10.1364/OL.41.003833
Publication status	Published - 15 Aug 2016
Externally published	Yes

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title = "Subwavelength imaging of a point source based on two-dimensional photonic crystals",

abstract = "A new two-dimensional (2D) photonic crystal (PC) structure with effective refractive index approaching -1, consisting of periodic array air holes in silicon, is proposed. The light radiated from a point source can form an image through a single wedge PC. Numerical results show that the half-width of the image reaches 0.44λ, which is lower than half of the incident wavelength. In addition, the light through the combination of two of the same PCs can also form subwavelength imaging of which the half-width reaches 0.67λ, and the image almost flipped 180° compared with a point source.",

author = "Hongliang Ma and Binming Liang and Songlin Zhuang and Jiabi Chen and Qiang Jiang and Junwei Ding",

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T1 - Subwavelength imaging of a point source based on two-dimensional photonic crystals

AU - Ma, Hongliang

AU - Liang, Binming

AU - Zhuang, Songlin

AU - Chen, Jiabi

AU - Jiang, Qiang

AU - Ding, Junwei

PY - 2016/8/15

Y1 - 2016/8/15

N2 - A new two-dimensional (2D) photonic crystal (PC) structure with effective refractive index approaching -1, consisting of periodic array air holes in silicon, is proposed. The light radiated from a point source can form an image through a single wedge PC. Numerical results show that the half-width of the image reaches 0.44λ, which is lower than half of the incident wavelength. In addition, the light through the combination of two of the same PCs can also form subwavelength imaging of which the half-width reaches 0.67λ, and the image almost flipped 180° compared with a point source.

AB - A new two-dimensional (2D) photonic crystal (PC) structure with effective refractive index approaching -1, consisting of periodic array air holes in silicon, is proposed. The light radiated from a point source can form an image through a single wedge PC. Numerical results show that the half-width of the image reaches 0.44λ, which is lower than half of the incident wavelength. In addition, the light through the combination of two of the same PCs can also form subwavelength imaging of which the half-width reaches 0.67λ, and the image almost flipped 180° compared with a point source.

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VL - 41

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JO - Optics Letters

JF - Optics Letters

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ER -

Subwavelength imaging of a point source based on two-dimensional photonic crystals

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