Photonic crystal cavity embedded in electromagnetically induced transparency media
2010 (English)In: Journal of Optics, ISSN 2040-8978, Vol. 12, no 3, 035105- p.Article in journal (Refereed) Published
Photonic crystal cavities are known for their high quality factor and small modal volume. Electromagnetically induced transparency (EIT) is known for its dramatic dispersion. We study the fundamental cavity mode of a two-dimensional photonic crystal embedded in an EIT medium. Comparison of finite-difference time-domain simulations with an analytical intracavity-EIT model yields similar results: the modal density of the photonic crystal cavity increases and the cavity resonance is pulled from the empty cavity resonance to the two-photon resonance of the EIT medium. As a consequence, the quality factor may be enhanced by more than two orders of magnitude. For a miniature sized 2.5 lambda x 2.5 lambda photonic crystal cavity based on a 5 x 5 high index rod structure with a missing centre rod, the quality factor can be increased from 200 to 40 000.
Place, publisher, year, edition, pages
2010. Vol. 12, no 3, 035105- p.
photonic crystal cavity, electromagnetically induced transparency, quality factor, mode pulling
IdentifiersURN: urn:nbn:se:kth:diva-29490DOI: 10.1088/2040-8978/12/3/035105ISI: 000279943100011ScopusID: 2-s2.0-77951831328OAI: oai:DiVA.org:kth-29490DiVA: diva2:394700
FunderSwedish Research Council
QC 20110203. Previous title " Photonic crystal microcavity made of electromagnetically induced transparency material ".2011-02-032011-02-022012-03-27Bibliographically approved