The numerical calculation shows the variation process of output laser beam of unstable resonator from annular pattern on near field, with gradual transition of laser energy in the annular region to the beam's center, to Airy disk pattern on far field. 理论计算结果表明,非稳腔输出端环状光束在中场区域激光能量逐渐向轴心方向转移,而在远场变为爱里型圆盘状光束的过程。
Superresolution is a technology that can enhance the fabrication resolution of optical system by compressing the focal spot smaller than Airy disk. 超分辨技术是一种使聚焦光斑小于艾利斑,提高光学加工分辨率的技术。