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Wavelength and loss splitting in directly coupled photonic-crystal defect microcavities
Linköping University, The Institute of Technology. Linköping University, Department of Physics, Chemistry and Biology, Materials Science .ORCID iD: 0000-0002-4547-6673
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2008 (English)In: Optics Express, ISSN 1094-4087, Vol. 16, no 20, 16255-16264 p.Article in journal (Refereed) Published
Abstract [en]

Coupling between photonic-crystal defect microcavities is observed to result in a splitting not only of the mode wavelength but also of the modal loss. It is discussed that the characteristics of the loss splitting may have an important impact on the optical energy transfer between the coupled resonators. The loss splitting - given by the imaginary part of the coupling strength - is found to arise from the difference in diffractive outof-plane radiation losses of the symmetric and the antisymmetric modes of the coupled system. An approach to control the splitting via coupling barrier engineering is presented. © 2008 Optical Society of America.

Place, publisher, year, edition, pages
2008. Vol. 16, no 20, 16255-16264 p.
National Category
Natural Sciences
URN: urn:nbn:se:liu:diva-44052DOI: 10.1364/OE.16.016255Local ID: 75487OAI: diva2:264913
Available from: 2009-10-10 Created: 2009-10-10 Last updated: 2015-01-23

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