Tunable sinusoidal Phase Gratings and sinusoidal Phase Zone Plates
نویسندگان
چکیده
منابع مشابه
Nonparaxial scalar treatment of sinusoidal phase gratings.
Scalar diffraction theory is frequently considered inadequate for predicting diffraction efficiencies for grating applications where lambda/d>0.1. It has also been stated that scalar theory imposes energy upon the evanescent diffracted orders. These notions, as well as several other common misconceptions, are driven more by an unnecessary paraxial approximation in the traditional Fourier treatm...
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When a sinusoidal (test) grating is displaced horizontally by a phase angle of 180 deg in a two-frame apparent motion display, the perceived direction of motion is ambiguous; the test grating appears to move either to the left or to the right (or to both directions). On the other hand, when the test grating is displaced by 180 deg synchronously with the inducing gratings which, presented above ...
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ژورنال
عنوان ژورنال: Photonics Letters of Poland
سال: 2017
ISSN: 2080-2242
DOI: 10.4302/plp.v9i2.729