Optical microscopy via spectral modifications of a nano-antenna

Details Optical microscopy via spectral modifications of a nano-antenna Optical microscopy via spectral modifications of a nano-antenna

2005-09-26

arxiv.org/abs/physics/0509218v1

Phys. Rev. Lett. 95, 200801 (2005)

Physics

Optics

6 pages, 4 figures (color)

Scientific paper

10.1103/PhysRevLett.95.200801

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.

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