Their design has three segments that, collectively, efficiently align and transform a conventional Gaussian beam into an annular beam and then, finally, a Bessel beam of the desired order and OAM ...

Jess Thomson is a Newsweek Science Reporter based in London UK. Her focus is reporting on science, technology and healthcare. She has covered weird animal behavior, space news and the impacts of ...

A “ring of fire” annular solar eclipse will put on a show from Oregon to Texas this Saturday – as long as clouds don’t spoil the fun. The moon doesn’t cover 100% of the sun in an annular ...

For some, this will be an annular solar eclipse. That occurs when the moon is at or near the furthest point its orbit and appears small in the sky, and its transit in front of the sun will look ...

Such annular eclipses, also known as a “ring of fire” solar eclipse, are fairly rare, and another one won’t occur over the U.S. again until 2046. All types of solar eclipses occur when the ...