All-angle negative refraction without negative effective index
Abstract
We describe an all-angle negative refraction effect that does not employ a negative effective index of refraction and involves photonic crystals. A few simple criteria sufficient to achieve this behavior are presented. To illustrate this phenomenon, a microsuperlens is designed and numerically demonstrated.
- Publication:
-
Physical Review B
- Pub Date:
- May 2002
- DOI:
- Bibcode:
- 2002PhRvB..65t1104L
- Keywords:
-
- 78.20.Ci;
- 42.70.Qs;
- 42.30.Wb;
- Optical constants;
- Photonic bandgap materials;
- Image reconstruction;
- tomography