Observing the positronium beam as a quantum matter wave for the first time

One of the discoveries that fundamentally distinguished the emerging field of quantum physics from classical physics was the ...

Imaging technique captures ultrafast electron and atom dynamics in chemical reactions

During chemical reactions, atoms in the reacting substances break their bonds and re-arrange, forming different chemical ...
IEEE

Applicability of Physical Optics for Predicting the Diffraction Pattern of Binary Metasurfaces

Abstract: In this paper, we outline the domain of adequacy for the well-known approximation of physical optics (PO) for binary metasurfaces (MSs). First, we show that beyond the approximation of ...
IEEE

Reflective Metagratings with Reconfigurable Array Period for Controlling Diffraction Patterns

Abstract: The concept of metagratings has been proposed as an efficient method of controlling the diffraction field of electromagnetic waves. In this paper, a reflective metagrating with ...