A study of Photonic Crystals bending waveguide laser tip for dental treatments

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Publication Details

Author list: Khongsombut E., Silapunt R., Watcharakitchakorn O.

Publisher: Hindawi

Publication year: 2012

ISBN: 9781467356961

ISSN: 0146-9428

eISSN: 1745-4557

URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84875757823&doi=10.1109%2fEDSSC.2012.6482853&partnerID=40&md5=d68532f35a5ecd452b9b1513cc7088be

Languages: English-Great Britain (EN-GB)

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Abstract

We propose a design and two dimensional (2D) simulation of a Photonic Crystals (PhC) slab waveguide laser tip with triangular lattices for dental treatments. The band diagram is computed in the transverse electric (TE) mode for triangular lattices of air holes in silicon substrate. The power transmission efficiencies of 90ฐ and 120ฐ bending structure with different sizes of defects are measured and compared with the straight waveguide. The result shows that for the bending structure, the efficiency depends relatively on both bending degree and defect size and for this particular design, the highest efficiency is achieved using the 120ฐ structure with W2 defect. ฉ 2012 IEEE.

Keywords

bending structure, laser tip, Photonic Crystals slab waveguide, triangular lattices