Title :
Diffraction analysis of extraction efficiency for photonic crystal based white light emitting diodes
Author :
Khoshnegar, Milad ; Sodagar, Majid ; Eftekharian, A. ; Khorasani, Sina
Author_Institution :
Sch. of Electr. Eng., Sharif Univ. of Technol., Tehran, Iran
Abstract :
In this paper, we have proposed a diffraction analysis for calculating extraction efficiency of photonic crystal based light emitting diodes. Diffraction patterns have been obtained for the three RGB wavelengths. It has been observed that extraction efficiency is higher for lattices bearing more symmetry lines in reciprocal domain in the visible range. Besides, the extraction efficiency is optimized with respect to several photonic crystal geometrical parameters such as thickness, filling factor and lattice type.
Keywords :
light diffraction; light emitting diodes; photonic crystals; diffraction analysis; extraction efficiency; photonic crystal; white light emitting diodes; Diffraction; Etching; Filling; Lattices; Light emitting diodes; Optical arrays; Personal communication networks; Photoluminescence; Photonic crystals; Slabs;
Conference_Titel :
Lasers and Electro-Optics 2009 and the European Quantum Electronics Conference. CLEO Europe - EQEC 2009. European Conference on
Conference_Location :
Munich
Print_ISBN :
978-1-4244-4079-5
Electronic_ISBN :
978-1-4244-4080-1
DOI :
10.1109/CLEOE-EQEC.2009.5191503
