Optical confinement using a doughnut waveguide

Ya Lun Tsai, Kuei Chu Hsu, Chii Chang Chen, Ching Yi Chen, Jenq Yang Chang

Research output: Contribution to journalArticlepeer-review

3 Scopus citations


This paper examines the photonic band gap of periodically arranged doughnuts (torus). Using the proposed structure as a hollow waveguide, it is possible to obtain the complete bandgap and optical confinement. The diameter of the outputted beam from the waveguide can be the same order of magnitude as the wavelength.

Original languageEnglish
Article number245103
JournalJournal of Physics D: Applied Physics
Issue number24
StatePublished - 2010


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