Drastic influence of the half-bowtie resonances on the focusing and collimating capabilities of 2-D extended hemielliptical and hemispherical dielectric lenses
The interplay between the optical focusing and wavelength-scale resonant features of extended hemielliptical (EHE) and extended hemispherical (EHS) lenses is studied in the two-dimensional (2-D) formulation using highly accurate in-house software based on the Muller boundary integral equations. The...
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| Published in | Journal of the Optical Society of America. A, Optics, image science, and vision Vol. 27; no. 11; p. 2442 |
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| Main Authors | , |
| Format | Journal Article |
| Language | English |
| Published |
United States
01.11.2010
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| Online Access | Get more information |
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| Summary: | The interplay between the optical focusing and wavelength-scale resonant features of extended hemielliptical (EHE) and extended hemispherical (EHS) lenses is studied in the two-dimensional (2-D) formulation using highly accurate in-house software based on the Muller boundary integral equations. The influence of the half-bowtie (HBT) resonances on the focusing and collimating capabilities of medium-size EHE and EHS lenses made of silicon is characterized as a function of lens parameters and excitation conditions. As a result, factors determining the parasitic impacts of the HBT resonances on the performance of integrated lens antennas are highlighted. |
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| ISSN: | 1520-8532 |
| DOI: | 10.1364/JOSAA.27.002442 |