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The possibility of replacing metamaterials in transformation media by lossless dielectric photonic crystals is investigated. It is shown that such crystals are capable of both accelerating waves to superluminal phase velocities and bending wave paths around the objects thus providing initial wave front reconstruction beyond the objects. To realize transformation optics prescriptions for the cloak medium, we propose to use crystals with rectangular unit cells. We show that these crystals can provide prescribed anisotropy of directional indices along crystallographic directions.
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From microwaves to optics: all-dielectric solutions for coordinate transformation-based devices
Realization of the full potential of transformation optics depends on access to the media, in which prescribed by the theory spatial dispersion of material parameters, such as permittivity, permeability and/or refractive index, could be implemented. As an alternative to conventional metamaterials, this work presents transformation media composed of all-dielectric metamaterials and photonic crystals.
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- Award ID(s):
- 1709991
- PAR ID:
- 10059903
- Date Published:
- Journal Name:
- International Symposium NGC2017 (Nano and Giga Challenges in Electronics, Photonics and Renewable Energy), Tomsk, Russia
- Format(s):
- Medium: X
- Sponsoring Org:
- National Science Foundation
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Accepted Manuscript1.0
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- The DOI is not currently available.
