High effiency small-size planar hyperbolical lenses

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Hamnes, P.C.A. and Krijnen, G.J.M. and Driessen, A. (1990) High effiency small-size planar hyperbolical lenses. Electronics Letters, 26 (14). pp. 1064-1066. ISSN 0013-5194

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Abstract:Planar hyperbolical lenses with an average efficiency of 85% for coupling a 40 μm wide beam into a 4 μm wide waveguide are realised. The total length required for the beam compression is 600 μm, with a lateral index contrast of 0.01. Good agreement is found between the BPM predicted and the measured lens efficiencies.
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Electrical Engineering, Mathematics and Computer Science (EEMCS)
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Link to this item:http://purl.utwente.nl/publications/65139
Official URL:http://dx.doi.org/10.1049/el:19900689
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