A new technique is presented to detect targets under sea background. Focused on interested areas, the spatial and frequency distributions are first studied, then analytic expression of targets is set up by least square method (LSM). According to the shape
Resonant cavity enhancement (RCE) typed optical detector and modulator which operating at wavelength band of 1.06 μm is reported. The peak quantum efficiency of detector is reasonably high as 50% without bias, and the photocurrent contrast ratio of modula
We present here experimental results on the optimization of the mega-electronvolt ion source from the target front surface by using relativistic (1018 W/cm2) interactions with ultra-short laser pulses (50 fs). The source perturbation