Ren, Fang-FangYu, M. B.Ye, J. D.Chen, Q.Tan, S. T.Lo, G. Q.Kwong, D. L.2015-09-182015-09-180003-6951http://hdl.handle.net/1885/15551Three-dimensional-confined structures with triangular-lattice air-hole photonic crystal patterns were fabricated to enhance the light output from silicon rich oxide/SiO₂multilayer stack. The intensity and profile of spontaneous emission were found to be efficiently modulated by controlling the optical modes of the periodic arrays via varying their structural parameters. With lattice constant/radius of 700nm∕280nm, the photoluminescence intensity was found to be enhanced by nearly nine times in the vertical direction. The mechanisms for different enhancement features have been theoretically analyzed based on coherent scattering and quantum electrodynamic effects, well supporting the experimental observation.4 pageshttp://www.sherpa.ac.uk/romeo/issn/0003-6951..."Publishers version/PDF may be used on author's personal website, institutional website or institutional repository" from SHERPA/RoMEO site (as at 18/09/15). Copyright 2008 American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics. The following article appeared in Applied Physics Letters and may be found at https://dx.doi.org/10.1063/1.2976330Keywords: Crystal atomic structure; Electrodynamics; Electromagnetic waves; Modulation; Photonic crystals; Powders; Quantum electronics; Three dimensional; Light output; Silicon rich; Silicon2008-09-0210.1063/1.29763302015-12-11