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Bulk - Generated Speckle Patterns
Contributed by Alex Lempicki   

The present report is a continuation of the description of our work on the transparency and light scattering in polycrystalline ceramics.  The first report dealt primarily with the concept of transparency and examined ways of quantifying this property.  The driving force for continuing this investigation was therefore greatly influenced by interest in optical properties of ceramics (this time truly single phase, polycrystalline materials) because of their application as windows, armor, scintillators or lasers, making the subject of light scattering in these media of immediate importance.  While ceramics made from isotropic materials are reasonably easy to produce with a high degree of transparency, the anisotropic ceramics represent the real challenge, often requir­ing consideration of nanograined materials and development of new consolidation technologies. ...

 

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ALEM at SCINT'07
Written by Jarek Glodo   

A SCINT conference is dedicated to scintillators and their applications.  ALEM authored or co-authored 6 presentations....

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Transparency Revised
Contributed by Alex Lempicki   

How often do we see that the same type of question pops out in very different and seemingly unrelated fields of Physics?  This only attests to the unity and universality of the discipline in which there are no observations or facts that stand alone.  Everything is connected to everything.
We will deal with the concept of transparency, whose meaning is clearer, let’s say even more transparent, in everyday language than in science.  Witness the optics terminology invading language with terms such as “transparent policy”, “opaque statement”, “obscure statement”,  ... 

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