In their article “Visualizing the bidirectional optical transfer function for near-field enhancement in waveguide coupled plasmonic transducers” Lauren M. Otto, D. Frank Ogletree, Shaul Aloni, Matteo Staffaroni, Barry C. Stipe and Aeron T. Hammack describe how visualizations of the near-field modes in the region of a plasmonic device were created using scattering scanning near-field optical microscopy and scanning electron microscopy cathodoluminescence with both showing a strong correspondence to multiphysical numerical modeling of the devices under interrogation.
The sSNOM measurements shown in this article were performed with NANOSENSORS™ AdvancedTEC™ ATEC-NC tip-view AFM probes.
Scattering scanning near-field optical microscopy images of HAMR heads as a function of wavelength and polarization. Near-field maps for the 1ω0 and 6ω0 with both (a) 830 nm and (b) 633 nm wavelengths as well as polarizations ranging from −90° deg (perp, TE) to 0° (para TM) to +90° (perp, TE). All maps are 400 nm × 400 nm. The intensity maxima from all maps were extracted and plotted against the expected cos2(θ) intensity decay curve for both (c) 830 nm light and (d) 633 nm light. The full data set ranged from −100° to 100° in increments of 10° and covered six harmonics for both wavelengths. The AFM color scale ranges from −3.8 to +1.6 nm, and the map is 400 nm × 400 nm. Additional images can be found in the Supporting Information in the online version of the original article.
Lauren M. Otto, D. Frank Ogletree, Shaul Aloni, Matteo Staffaroni, Barry C. Stipe and Aeron T. Hammack
Visualizing the bidirectional optical transfer function for near-field enhancement in waveguide coupled plasmonic transducers
Nature Scientific Reports volume 8, Article number: 5761 (2018)
DOI: https://doi.org/10.1038/s41598-018-24061-3
Please follow this external link to read the full article: https://rdcu.be/bU4co
Open Access: The article “Visualizing the bidirectional optical transfer function for near-field enhancement in waveguide coupled plasmonic transducers” by Lauren M. Otto, D. Frank Ogletree, Shaul Aloni, Matteo Staffaroni, Barry C. Stipe and Aeron T. Hammack which is cited above is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.