发明申请
US20130126751A1 OPTICAL DEVICE, LASER APPARATUS, AND EXTREME ULTRAVIOLET LIGHT GENERATION SYSTEM 审中-公开
光学装置,激光装置和超极紫外光发生系统

OPTICAL DEVICE, LASER APPARATUS, AND EXTREME ULTRAVIOLET LIGHT GENERATION SYSTEM
摘要:
An optical device may include: a first beam shaping unit configured to transform a first laser beam incident thereon into a second laser beam having an annular cross section; and a first focusing optical element for focusing the second laser beam in a first predetermined location so as to generate a Bessel beam.
信息查询
0/0