fresnel zone plate - Axtarish в Google
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A zone plate consists of a set of concentric rings, known as Fresnel zones, which alternate between being opaque and transparent. Light hitting the zone plate ...
Зонная пластинка Френеля Зонная пластинка Френеля
Зонная пластинка — приспособление для фокусировки света или других явлений с волновой природой. В отличие от линзы, преломляющей свет за счёт рефракции, действие зонной пластинки основано на дифракции. Википедия
A suitable circular absorbing or phase grating is called Fresnel zone plate (FZP) [Fre 1866]. A FZP focuses the incoming beam to a point focus (fig. 1).
Fresnel zone plates focus light using diffraction. They are used in extreme spectral regions.
A zone plate is a circular diffraction grating. In its simplest form, a transmission Fresnel zone plate lens consists of alternate transparent and opaque rings.
According to Fresnel's principle, interference of waves diffracted by obstacles may be treated simply by splitting the primary wave front into so called zones.
A zone plate consists of a set of radially symmetric rings, known as Fresnel zones, which alternate between opaque and transparent. Light hitting the zone plate ...
The fresnel zone plates (FZPs) are widely used as focusing devices in different spectral ranges. As illustrated in Figure 5c, the working principle is based on ...
Experiment Objective: explore the principle of the Fresnel phase zone plate and determine it spectral characteristics. To calculate the diffraction patterns ...
We shall express the Fresnel diffraction patterns of a Fresnel zone plate, sometimes called a Soret zone plate, as a function of the diffracted amplitudes at ...
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