On the Cover: Polarization-independent highly efficient generation of Airy optical beams with dielectric metasurfaces
The image on the cover of Photonics Research Volume 8, Issue 7, indicates that Airy optical beams have come out to stir up enormous research interests due to their extraordinary characteristics of self-accelerating, self-healing, and being nearly diffraction free. There are various schemes to generate Airy beams, for instance, using spatial light modulators (SLMs). However, they significantly condense the quality of the generated Airy beams due to the poor phase discretization, as Airy beams possessing specific characteristics need phase profiles with large phase slope. Provided by B. Yu et al., researchers from University of Shanghai for Science and Technology, City University of Hong Kong and Tongji University, the image is based on the research presented in their article, "Polarization-independent highly efficient generation of Airy optical beams with dielectric metasurfaces", Photonics Research 8(7) 07001148, doi 10.1364/PRJ.390202.