Presentation
20 August 2020 A planar scanning probe microscope for near-field microscopy
Author Affiliations +
Abstract
Scanning probe microscopy (SPM) traditionally employs a sharp tip as a sensor. This geometry is a problem for many modern near-field probes, such as NV centers in diamond, which cannot easily be placed on a tip. Here we present a novel, tipless approach - a technique to scan a planar probe parallel to a planar sample at a distance of few tens of nanometers. The core of our scheme are optical far-field techniques to measure both distance and tilt between the probe and the sample with sub-nm and sub-mrad precision. These measurements are employed as a feedback signal for positioning. Using this scheme, we demonstrate scanning near-field optical microscopy (SNOM) of plasmonic modes in silver nanowires using shallow NV centers in a bulk diamond. We will equally present ongoing experiments to implement a scanning nanogap cavity. S. Ernst et al., ACS Photonics 6, 327 (2019)
Conference Presentation
© (2020) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Paul Weinbrenner, Stefan Ernst, Dominik M. Irber, and Friedemann Reinhard "A planar scanning probe microscope for near-field microscopy", Proc. SPIE 11471, Quantum Nanophotonic Materials, Devices, and Systems 2020, 114710M (20 August 2020); https://doi.org/10.1117/12.2568029
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KEYWORDS
Near field scanning optical microscopy

Microscopy

Scanning probe microscopes

Diamond

Distance measurement

Scanning probe microscopy

Atomic force microscopy

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