Resolution Aspects for Near-Field Projections

Resolution and Denoising in Near-Field Imaging

We consider the inverse problem of reconstructing surface displacements from noisy acoustic measurements collected at a distance from the surface that is comparable to the wavelength. As the detectors move closer to the surface and information from evanescent waves is recorded, the resolution of the image improves up to a level that is limited by the signal to noise ratio (SNR). We review this ...

Resonantly loaded apertures for high-resolution near field surface imaging

A novel type of microwave probes based on the loaded aperture geometry has been proposed and experimentally evaluated for dielectrics characterization and high-resolution near field imaging. Experimental results demonstrate the possibility of very accurate microwave spectroscopic characterization of thin lossy dielectric samples and biological materials containing water. High resolution images ...

Near-field nanopatterning Imprinting the Optical Near Field of Microstructures with Nanometer Resolution**

Apertureless scanning near field optical microscope with sub-10nm resolution

Enhanced resolution in subsurface near-field optical microscopy.

We report an experimental analysis of the capabilities of scattering-type scanning near-field optical microscopy for mapping sub-surface features at varying depths. For the first time, we demonstrate experimentally that both the spatial resolution and depth contrast can be improved in subsurface microscopy by demodulating the measured near-field signal at higher harmonics of the probe's tapping...