Diode Lasers Jump to the Deep Ultraviolet | 合法醫療器材資訊網

2020年1月9日—Laserdiodesconcentratetheirbeamoveralongerdistance,deliveringhigherpowertosmallspots,andtheirlightisconcentratedinabandof ...

The first electrically powered semiconductor laser emitting in the deep ultraviolet marks a big step into a new field, says Ramón Collazo[1], a materials science professor at North Carolina State University who collaborates with Adroit Materials[2] in Cary, NC.

Researchers had thought “there was a hard wall” blocking diode lasers from emitting ultraviolet light shorter than 315 nm even in laboratory lasers, Collazo says. Now a team including Hiroshi Amano of Nagoya University, who shared the 2014 Nobel Physics Prize[3] for inventing efficient blue light-emitting diodes, has scored another breakthrough by demonstrating a 271.8-nm diode laser, more than 40 nm deeper into the ultraviolet.

“Bio-sensing and sterilization are expected to be the first key applications” of deep ultraviolet diode lasers, says Ziyi Zhang of the Asahi Kasei Corporate Research Center[4] in...