期刊
OPTICS LETTERS
卷 37, 期 9, 页码 1454-1456出版社
OPTICAL SOC AMER
DOI: 10.1364/OL.37.001454
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- DARPA Microsystems Technology Office (MTO) [DE-AC04-94AL85000]
Herein we propose, theoretically investigate, and numerically demonstrate a compact design for a vertical emitter at a wavelength of 1.5 mu m based on nanophotonic aperture antennas coupled to a dielectric waveguide. The structure utilizes a plasmonic antenna placed above a Si3N4 waveguide with a ground plane for breaking the up-down symmetry and increasing the emission efficiency. Three-dimensional (3-D) finite-difference time-domain (FDTD) simulations reveal that up to 60% vertical emission efficiency is possible in a structure only four wavelengths long with a 3 dB bandwidth of over 300 nm. (C) 2012 Optical Society of America
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