Negative Refraction at Infrared Wavelengths in a Two-Dimensional Photonic Crystal
2004 (English)In: Physical Review Letters, ISSN 0031-9007, Vol. 93, no 073902Article in journal (Refereed) Published
We report on the first experimental evidence of negative refraction at telecommunication wavelengths by a two-dimensional photonic crystal field. Samples were fabricated by chemically assisted ion beam etching in the InP-based low-index constrast system. Experiments of beam imaging and light collection show light focusing by the photonic crystal field. Finite-difference time-domain simulations confirm that the observed focusing is due to negative refraction in the photonic crystal area.
Place, publisher, year, edition, pages
2004. Vol. 93, no 073902
BAND-GAP; INDEX; PROPAGATION; LENS
IdentifiersURN: urn:nbn:se:kth:diva-8381DOI: 10.1103/PhysRevLett.93.073902ISI: 000223273300023ScopusID: 2-s2.0-19444373513OAI: oai:DiVA.org:kth-8381DiVA: diva2:13686
QC 20100707 QC 201109232008-05-082008-05-082011-09-23Bibliographically approved