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Dual-color plasmonic probes for improvement of scanning near-field optical microscopy

Heydarian, H ; Sharif University of Technology | 2018

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  1. Type of Document: Article
  2. DOI: 10.1364/JOSAB.35.000627
  3. Publisher: OSA - The Optical Society , 2018
  4. Abstract:
  5. Design and modeling of a class of scanning near-field optical microscope (SNOM) probe for improving performance are reported. The basic idea is to generate more than one hot spot with well-known spatial distribution. This not only enables one to calibrate out many sorts of errors in conventional SNOM but also results in the increase in the speed of imaging. We utilize plasmonic nanocolor sorter structures to design aperture probes that create two spatially distinct hot spots. The method of moment analysis technique is employed to tune the probe for operation at standard Ar-ion laser wavelengths (457.9 and 514.5 nm). © 2018 Optical Society of America
  6. Keywords:
  7. Argon lasers ; Method of moments ; Optical microscopy ; Plasmonics ; Plasmons ; Probes ; Aperture probes ; Design and modeling ; Dual color ; Hot spot ; Improving performance ; Ion lasers ; Moment analysis ; Near field scanning optical microscopy
  8. Source: Journal of the Optical Society of America B: Optical Physics ; Volume 35, Issue 3 , 2018 , Pages 627-635 ; 07403224 (ISSN)
  9. URL: https://www.osapublishing.org/viewmedia.cfm?r=1&rwjcode=josab&uri=josab-35-3-627&seq=0