US Patent Issued on Aug. 5 for "Method and device for generating airy light needle with long depth of focus and high aspect ratio" (Chinese Inventors)

ALEXANDRIA, Va., Aug. 6 -- United States Patent no. 12,379,589, issued on Aug. 5.

"Method and device for generating airy light needle with long depth of focus and high aspect ratio" was invented by Ligang Wang (Hangzhou, China) and Lai Chen (Hangzhou, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present application discloses a method and device for generating an Airy light needle with a long depth of focus and high aspect ratio. A linearly polarized light emitted from the laser passes through the collimated beam expanding system, and then is incident to the spatial light modulator loaded with a specific phase distribution for complex amplitude modulation. The first-order diffraction light passes ...