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Subwavelength Resolution in a Two-Dimensional Photonic-Crystal-Based Superlens
Abstract
We experimentally and theoretically demonstrate single-beam negative refraction and superlensing in the valence band of a two-dimensional photonic crystal operating in the microwave regime. By measuring the refracted electromagnetic waves from a slab shaped photonic crystal, we find a refractive index of -1.94 that is very close to the theoretical value of -2.06. A scanning transmission measurement technique is used to measure the spatial power distribution of the focused electromagnetic waves that radiate from a point source. The full width at half maximum of the focused beam is measured to be 0.21 lambda, which is in good agreement with the finite difference time domain method simulations. We also report a subwavelength resolution for the image of two incoherent point sources, which are separated by a distance of lambda/3.
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Citations
Cites
Negative Refraction Makes a Perfect Lens
Pendry, J. B. (2000) · Physical Review Letters · doi:10.1103/physrevlett.85.3966 · Cited by 12,159
Metadata
- Authors
- Cubukcu, E., Aydin, K., Ozbay, E., Foteinopoulou, S., & Soukoulis, C. M.
- Venue
- Physical Review Letters
- Publisher
- American Physical Society (APS)
- Published
- 2003-11-11
- Volume
- 91
- Issue
- 20
- Pages
- 207401-207401
- ISSN
- 0031-9007 (ISSN-L)
- 1079-7114
- OpenAlex
- W1994358516
- Cited by
- 382
- References
- 1
- FWCI
- 24.48
- Type
- journal article
- Language
- en
- Open access
- closed
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- Cubukcu, E., Aydin, K., Ozbay, E., Foteinopoulou, S., & Soukoulis, C. M. (2003). Subwavelength Resolution in a Two-Dimensional Photonic-Crystal-Based Superlens. Physical Review Letters. https://doi.org/10.1103/physrevlett.91.207401
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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
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