China launches first-ever deep UV laser device
Beijing: The Chinese Academy of Sciences (CAS) has launched a deep ultraviolet (DUV) solid-state laser device, making the country first-ever in the world to possess such technology.
CAS President Bai Chunli said that the successful testing of the device suggests the academy`s dedication to major innovation and breakthrough in seeking development.
The use of potassium beryllium fluoroborate (KBBF) once stalled the project and Chen Chuangtian, a CAS member along with Xu Zuyuan, a member of the Chinese Academy of Engineering turned to the Hong Kong University of Science and Technology for help.
Xu said that they were allowed to use their labs because Chinese mainland research institutes did not have similar ones at that time, adding that they eventually, after many strenuous efforts, invented a KBBF prism coupling device.
The device marks the world`s first-ever output of 1,064-nanometer`s 6-harmonic frequency multiplication, shortening the diode-pumped solid-state laser (DPL)`s wavelength to 177.3nm.
Based on the achievement, the pair later managed to develop an applicable D UV-DPL.
A KBBF prism coupling device-based DPL source features a smaller size, higher energy resolution and higher photon influx density.
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