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cholesteric1.jpg

Texture commonly observed for cholesteric (twisted nematic/chiral nematic) phases.

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This cholesteric phase has very clear stripes, which are associated with the pitch of the helical suprastructure formed in this type of phase.

nematic1.jpg

Textures of liquid crystals in the nematic phase (orientational order, but no positional order). This is the characteristic "droplet" texture that is observed when the nematic phase begins to form upon cooling from the isotropic (completely disordered liquid) phase.

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Characteristic "threading" observed in nematic textures ­ the dark threads that are observed through out the colored regions correspond to molecular domains which are aligned with one of the optical polarizers.

nematic3.jpg

Characteristic "threading" observed in nematic textures ­ the dark threads that are observed through out the colored regions correspond to molecular domains which are aligned with one of the optical polarizers.

nematic4.jpg

Characteristic "threading" observed in nematic textures ­ the dark threads that are observed through out the colored regions correspond to molecular domains which are aligned with one of the optical polarizers.

smectic1.jpg

Typical "focal conic" textures observed for smectic phases (the phases in which the molecules are arranged into "layers" in addition to being oriented along a particular axis).

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Typical "focal conic" textures observed for smectic phases (the phases in which the molecules are arranged into "layers" in addition to being oriented along a particular axis).