期刊
OPTICS LETTERS
卷 39, 期 9, 页码 2802-2805出版社
OPTICAL SOC AMER
DOI: 10.1364/OL.39.002802
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资金
- Foundation for Fundamental Research on Matter (FOM)
- Netherlands Organisation for Scientific Research (NWO)
- NanoNextNL of the Dutch ministry EL I
- EU FET project SPANGL4Q.
We use symmetry considerations to understand and unravel near-field measurements, ultimately showing that we can spatially map three distinct fields using only two detectors. As an example, we create 2D field maps of the outof-plane magnetic field and two in-plane fields for a silicon ridge waveguide. Furthermore, we are able to identify and remove polarization mixing of less than 1/30 of our experimental signals. Since symmetries are prevalent in nanophotonic structures and their near-fields, our method can have an impact on many future near-field measurements. (C) 2014 Optical Society of America
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