In the realm of general relativity, black holes are well-known for their ability to trap light and matter by bending ...

Offers new possibilities to control light across the spectrum and insight into light–matter interactions. The device, reported in Advanced Photonics, functions as an optical black hole or optical ...

In this paper, we propose a novel optical design based on multiple-lens structure to couple free-space narrow beams to the receiving aperture, achieving larger FoVs. We also derive an average optical ...

Certain profile variations were eliminated, singly and/or collectively, and the resultant changes in modal structure analyzed. The most important factor in the deterioration of the bandwidth is the ...