Dielectric anisotropy, and diffraction efficiency properties of a doped nematic liquid crystal

Yakuphanoğlu, F.; Okutan, Mustafa; Köysal, Oğuz; Ahn, Su-Mi; Keum, Sam‐Rok

doi:10.1016/j.dyepig.2007.01.017

Cited by 17 publications

(7 citation statements)

References 12 publications

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“…By stepwise increasing the frequency of the ac field, we notice that the response becomes lower again at 100 kHz (not shown). In fact, the dielectric anisotropy As of pure E7 is almost constant in the frequency range 100 Hz-100 kHz [13], while we believe BaTiOs nanoparticles are not able to follow the field at high frequencies. For low frequencies, we consider two cases.…”

Section: Device Characterization and Resultsmentioning

confidence: 98%

Nanoparticles Doped Liquid Crystal Filled Photonic Bandgap Fibers

Scolari¹,

Gauza²,

Xianyu³

et al. 2008

AIP Conference Proceedings

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Section: Device Characterization and Resultsmentioning

confidence: 98%

Nanoparticles Doped Liquid Crystal Filled Photonic Bandgap Fibers

Scolari¹,

Gauza²,

Xianyu³

et al. 2008

AIP Conference Proceedings

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“…It is noteworthy that LCs with ∆ε > 0 have a dominant application in liquid crystal display (LCD) manufacturing. LCs with ∆ε < 0 are used to improve performance of LCDs, which in addition is highly regarded in optoelectronic applications 33 – 35 .…”

Section: Methodsmentioning

confidence: 99%

Temperature-dependent optical properties of some mixtures nematic liquid crystal

Alipanah

Zakerhamidi

Ranjkesh

2022

Sci Rep

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The presence of optical anisotropy in liquid crystals (LCs) has caused these materials to have dual refractive indices: ordinary (no) and extra-ordinary (ne). Many fundamental information about LCs can be found by looking at these refractive indices. In this work, the refractive indices of four mixtures nematic liquid crystal (NLC) have been studied as a function of temperature, and the relevant functions were then calculated. Subsequently, the order parameter of mentioned LCs was determined using three methods: Vuks, Haller, and the effective geometry parameter method. It was concluded that the obtained values are not significantly different and exhibit the same temperature dependence. The obtained results were evaluated in relation to the approach utilized.

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“…From Fig. 4, at applied voltages lower than the threshold voltage, the measured dielectric constant is 'e \ ' and at applied voltages much higher than the threshold voltage, the measured dielectric constants are 'e k ' [25]. The dielectric anisotropy 'De' = e k -e \ were then obtained.…”

Section: Electro-optic and Dielectric Anisotropy Studiesmentioning

confidence: 99%