Title :
A study of Photonic Crystals bending waveguide laser tip for dental treatments
Author :
Khongsombut, E. ; Silapunt, Rardchawadee ; Watcharakitchakorn, O.
Author_Institution :
Dept. of Electron. & Telecommun. Eng., King Mongkut´s Univ. of Technol. Thonburi, Bangkok, Thailand
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 90° and 120° 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 120° structure with W2 defect.
Keywords :
crystal defects; crystal structure; dentistry; laser applications in medicine; patient treatment; photonic crystals; power transmission; silicon; substrates; waveguide discontinuities; 2Dsimulation; PhC slab waveguide laser tip; Si; W2 defect; air holes; band diagram; bending degree; bending structure; defect size; dental treatments; photonic crystals bending waveguide laser tip; power transmission efficiencies; silicon substrate; straight waveguide; transverse electric mode; triangular lattices; Dentistry; Fiber lasers; Laser applications; Lattices; Photonic crystals; Slabs; Waveguide lasers; Photonic Crystals slab waveguide; bending structure; laser tip; triangular lattices;
Conference_Titel :
Electron Devices and Solid State Circuit (EDSSC), 2012 IEEE International Conference on
Conference_Location :
Bangkok
Print_ISBN :
978-1-4673-5694-7
DOI :
10.1109/EDSSC.2012.6482853
