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dark reference  dark  digital holography  digital  holographic  holography  images  imaging  light  noise  reference images  reference 
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Preview: Journal of Electron Microscopy - Advance Access

Microscopy Advance Access

Published: Sat, 17 Feb 2018 00:00:00 GMT

Last Build Date: Sat, 17 Feb 2018 02:49:59 GMT


Digital holography and its multidimensional imaging applications: a review

Sat, 17 Feb 2018 00:00:00 GMT

In this review, we introduce digital holographic techniques and recent progress in multidimensional sensing by using digital holography. Digital holography is an interferometric imaging technique that does not require an imaging lens and can be used to perform simultaneous imaging of multidimensional information, such as three-dimensional structure, dynamics, quantitative phase, multiple wavelengths and polarization state of light. The technique can also obtain a holographic image of nonlinear light and a three-dimensional image of incoherent light with a single-shot exposure. The holographic recording ability of this technique has enabled a variety of applications.

Noise reduction in CCD measurements by improving the quality of dark-reference images

Tue, 13 Feb 2018 00:00:00 GMT

This publication is a systematic investigation of the effect the improvement of dark-reference images has on the resulting bright-field images. For this, data were acquired with three different charge-coupled device cameras attached to two different transmission electron microscopes. Multi-frame acquisitions and methods to correct x-ray noise are introduced and quantified as options to improve the dark-reference images. Furthermore, the influence of x-ray noise on transmission electron microscopy measurements is discussed and observations on its composition are shared.