负折射平板透镜景深特性仿真分析

Simulation analysis of the depth of field characteristic of negative refraction flat lens

根据波前编码理论,通过计算机仿真分析的形式,对负折射平板透镜景深延拓特性进行了探讨在折射率为-1时,实现了8.5333倍的景深延拓;在折射率有微小偏移的情况下,以-0.99为例,引入校正透镜后,实现了6.5862倍的景深延拓.

In virtue of wave-front coding theory, a computer simulation analysis of the depth of field extension of negative refraction flat lens is carried out. The depth of field extension can be achieved by 6.7 times in the slab, when its index is？1, through computer simulation. When the refractive index of the tablet is slightly offset, taking？0.99 for example, 6.9 times of the depth of field extension can be achieved after the introduction of the calibration lens.