Optical microscopy via spectral modifications of a nano-antenna

Abstract

The existing optical microscopes form an image by collecting photons emitted from an object. Here we report on the experimental realization of microscopy without the need for direct optical communication with the sample. To achieve this, we have scanned a single gold nanoparticle acting as a nano-antenna in the near field of a sample and have studied the modification of its intrinsic radiative properties by monitoring its plasmon spectrum.

6 pages, 4 figures (color)

References in corpus (2)

• Measuring the quantum efficiency of single radiating dipoles using a scanning mirror
• Single-molecule spectroscopy near structured dielectrics

Cited by in corpus (9)

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• Plasmonic Antennas as Design Elements for Coherent Ultrafast Nanophotonics
• Superemitters in Hybrid Photonic Systems: A Simple Lumping Rule for the Local Density of Optical States and its Break-Down at the Unitary Limit
• Coupling of plasmonic nanoparticles to their environments in the context of van der Waals-Casimir interactions
• Spontaneous decay rate and Casimir-Polder potential of an atom near a lithographed surface
• Metal nanoparticles in strongly confined beams: transmission, reflection and absorption
• Finite Element simulation of radiation losses in photonic crystal fibers
• Hydrodynamic effects on the energy transfer from dipoles to metal slab