An automated damage diagnostic system for collecting plasma flash is developed to diagnose damage in a laser-induced damage threshold (LIDT) test system. Experiment is done to verify the accuracy of this system and analyze the relationship between the pla
Starting directly from the nonlinear propagation equation including saturable nonlinearity, the first- and the second-order nonlinear dispersions, the dispersion relation, instable condition, gain spectra, and the dimensionless cut-off frequency and gain
The dysphotopia that is connected to the reflection of light from the intraocular lens (IOL) edge is analyzed. A new IOL with 'Sigma' edge is investigated, and other three IOLs are also studied for comparison. The interaction of rays as a function of ed
A terahertz bandpass filter with the sandwich structure consisting of thermally tunable vanadium dioxide (VO2) thin film, silica substrate and subwavelength rectangular Cu hole arrays is designed and theoretically analyzed. The results show tha
提出一种引入直接数字频率合成算法(DDS:Direct Digital Frequency Synthesis)的旋转LED高精度空间成像方法。巧妙地将三维物体的旋转LED空间成像问题转化为阵列信号的生成问题,并通过引入DDS算法输出高精度阵列信号,实现了旋转LED长时间稳定的高精度空间成像。经仿真实验和线阵列旋转LED成像平台实验的结果表明,与现有方法相比,本文方法简单、可靠,空间成像稳定。