![](https://ailistline.com/wp-content/uploads/2024/02/15164040/SEI_191604492.jpg)
[ad_1]
![Schematic image of GaN hollow nanowires on a sapphire substrate.](https://images.newscientist.com/wp-content/uploads/2024/02/15164040/SEI_191604492.jpg?width=1200)
An artist’s impression of a donut-shaped laser light-emitting hollow nanowire
Masato Takiguchi et al./ACS Photonics/American Chemical Society 2024
Small, hollow wires can create a donut shape. Laser beam which can be used to extract small objects or transmit information.
Conventional lasers typically create beams that appear as a small point of light when they hit a surface. But for some new communication technologies that use light to transmit information, it may be better to use lasers that create a hollow beam like a drinking straw, which emits light when it hits a surface. appear as circles.
Such a hollow laser…
[ad_2]