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Electrically switchable, polarization-independent diffraction grating based on negative dielectric anisotropy liquid crystal
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10.1063/1.2216429
/content/aip/journal/apl/88/25/10.1063/1.2216429
http://aip.metastore.ingenta.com/content/aip/journal/apl/88/25/10.1063/1.2216429
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

(a) Front view: schematic diagram of rubbing pattern on one substrate. Each pixel is wide and represents the azimuthal rubbing direction (0° or 90°). (b) Side view: (cross section) of cell. represents the electric field coherence length, such that the director in the bulk is approximately for distances from the substrates . Note that figure does not show the azimuthal homogenization of the director away from the rubbed substrate.

Image of FIG. 2.
FIG. 2.

(a) Intensity vs angle for . Only the central peak is present. (b)–(d) Intensity vs angle for three different orientations of the polarizer. Temperature and applied voltage rms. Efficiency is indepedent of . Note the decrease of the central peak intensity from the field-off case (a) due to diffraction, especially into the peaks.

Image of FIG. 3.
FIG. 3.

Intensity vs applied voltage for diffraction peak at .

Image of FIG. 4.
FIG. 4.

(a) Diffracted light for two-dimensional checkerboard pattern ( central peak is blocked out). Notice the presence of weak higher order peaks. (b) Diffracted light for the one-dimensional pattern [see Fig. 1(a)], with central peak blocked out.

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/content/aip/journal/apl/88/25/10.1063/1.2216429
2006-06-20
2014-04-21
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Electrically switchable, polarization-independent diffraction grating based on negative dielectric anisotropy liquid crystal
http://aip.metastore.ingenta.com/content/aip/journal/apl/88/25/10.1063/1.2216429
10.1063/1.2216429
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