CAJ | 학술논문

波前功率谱密度(PSD)被用于评价惯性约束聚变激光驱动器光学元件在中频区域的波前误差。高功率固体激光装置对大口径光学元件波前质量的要求有别于传统光学系统，要求对波前误差进行较高空间频率的测量。探讨了大口径光学元件波前的高空间分辨率检测技术，采用大口径相移干涉仪作为波前检测仪器，通过傅里叶变换获得波前一维功率谱密度分布。对惯性约束聚变激光驱动器的典型光学元件进行了波前功率谱密度的检测和分析。
파전공솔보밀도(PSD)피용우평개관성약속취변격광구동기광학원건재중빈구역적파전오차。고공솔고체격광장치대대구경광학원건파전질량적요구유별우전통광학계통，요구대파전오차진행교고공간빈솔적측량。탐토료대구경광학원건파전적고공간분변솔검측기술，채용대구경상이간섭의작위파전검측의기，통과부리협변환획득파전일유공솔보밀도분포。대관성약속취변격광구동기적전형광학원건진행료파전공솔보밀도적검측화분석。
The optical components employed in high power density solid-statelaser for inertial confinement fusion (ICF) must be measured at full aperture to provide the higher resolution measurements necessary to detect mid-spatial-frequency errors in the wavefront. The use of Fourier analysis techniques to measure the wavefront power spectral density (PSD) in mid-frequency domain is discussed. A large phase-shifting Fizeau interferometer is used for the measurement. The phase wavefront detected by the interferometer is digitally processed to create one dimension wavefront PSD. The PSD of several optical components are shown.