Green aurora can be seen dancing in Earth 's upper atmosphere as the zodiacal light fades, shimmering between the profiles of ...
Abstract: Angular momenta of electromagnetic waves are important both in concepts and applications. In this work, we systematically discuss two types of angular momenta, i.e., spin angular momentum ...
Abstract: The vortex electromagnetic (EM) wave, which carries orbital angular momentum (OAM), may provide extra rotational degree of freedom and can potentially be exploited in microwave staring ...
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