High spatial and temporal resolution synthetic aperture phase microscopy

High Resolution Synthetic Aperture Radar

This manuscript first introduces the fundamentals of Synthetic Aperture radar (SAR), there including the principle of the high resolution imaging capability, the processing required to focus the images, with its constraints and the different acquisition modes. Thereafter, it shows the potential ways to increase the imaging capabilities based on the concept of distributed SAR. Specifically both ...

High spatial resolution subsurface microscopy

We present a high-spatial-resolution subsurface microscopy technique that significantly increases the numerical aperture of a microscope without introducing an additional spherical aberration. Consequently, the diffraction-limited spatial resolution is improved beyond the limit of standard subsurface microscopy. By realizing a numerical aperture of 3.4, we experimentally demonstrate a lateral s...

(ct)Interferometric Synthetic Aperture Microscopy

Multifocal interferometric synthetic aperture microscopy.

There is an inherent trade-off between transverse resolution and depth of field (DOF) in optical coherence tomography (OCT) which becomes a limiting factor for certain applications. Multifocal OCT and interferometric synthetic aperture microscopy (ISAM) each provide a distinct solution to the trade-off through modification to the experiment or via post-processing, respectively. In this paper, w...

High-resolution synthetic-aperture digital holography with digital phase and pupil correction.

A 218 mega-pixel synthetic aperture was collected by raster scanning a CCD detector in a digital holography imaging experiment. Frames were mosaicked together using a two-step cross-correlation registration. Phase correction using sharpness metrics were utilized to achieve diffraction-limited resolution.