Chiral-racemic phase diagrams of blue-phase liquid crystals

Yang, Deng‐Ke; Crooker, P. P.

doi:10.1103/physreva.35.4419

Cited by 90 publications

(53 citation statements)

References 14 publications

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“…The 0; was found to be similar to the previously calculated 0' (now termed 0;) from the symmetry point of view, 0: being quite different from the first two. The seven-structure theoretical phase diagram is shown in figure 20(a) and compared with its experimental counterpart ( figure 20( b ) ) taken from the results of Yang and Crooker (1987). Based upon the augmented theory, one was now led to identifying 0; with BPI, retaining the identification of 0' with BPII. With the new results at hand, a much more detailed comparison of theory with experiment was possible (see figure 20( b ) ) .…”

Section: Theory Versus Experiment: Higher Harmonicsmentioning

confidence: 99%

“…The experimental observation of multiwave scattering (Marcus 1982b) indicates its practical significance for the study of BPS. Moreover, a number of the most puzzling findings in the experimental study of BPS (Tanimoto and Crooker 1984, Keyes 1987, Yang and Crooker 1987, Jerome et a1 1988 have been offered an explanation in terms of a multiple scattering event. Possible experimental effects include rotation of the plane of polarisation of light, Pendellosung beats, linear birefringence and dichroism (contrary to expectation for cubic space groups) and frequency dependence of the polarisation of diffracted beams.…”

Section: Multiwave Scatteringmentioning

confidence: 99%

“…(See also Yang and Crooker (1987) regarding the detailed interpretation of the experimental diagram.) The alternative two-dimensional hexagonal phase, first suggested by Brazovskii and Dmitriev (1979, was reconsidered in detail by Grebel et a1 ( 1 9 8 3~) and later by Wright and Mermin (1985).…”

Section: The Landau Theory Of the Blue Phasesmentioning

confidence: 99%

“…This is primarily due to the experimental resolution, which is, as yet, hampered by the difficulty in obtaining large enough B P I I I crystals (Demikhov et a1 1985). More recently the phase diagrams of compounds that exhibit all three blue phases were measured by Yang and Crooker (1987).…”

Section: Light Reflection (Jigure 8)mentioning

confidence: 99%

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The liquid-crystalline blue phases

Seideman

1990

Rep. Prog. Phys.

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Section: Theory Versus Experiment: Higher Harmonicsmentioning

confidence: 99%

Section: Multiwave Scatteringmentioning

confidence: 99%

Section: The Landau Theory Of the Blue Phasesmentioning

confidence: 99%

Section: Light Reflection (Jigure 8)mentioning

confidence: 99%

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The liquid-crystalline blue phases

Seideman

1990

Rep. Prog. Phys.

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“…Recently, a critical point has been discovered between the BPIII and isotropic phases [5], establishing with certainty that BPIII has the same symmetry as the isotropic liquid. The overall shape of this phase diagram so far seems to be universal, and does not seem to depend on the specificity of the chemical interactions [14]. …”

Section: Figure 1 Various "Artistic" Shots Of the First Two Blue Phamentioning

confidence: 99%

Liquid crystal supermolecules stabilizing an optically isotropic phase with frustrated molecular organization

Yoshizawa

2012

Polym J

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In 1888, while cooling liquid cholesteric benzoate, Reinitzer [8] reported a very brief bright blue-violet reflection right below the clearing point, which typically defines the transition between the clear isotropic phase and the more turbid liquid-crystalline phase. It wasn't until the mid 1970s that this sighting, as well as many others, was identified to be a new thermodynamically stable phase of certain liquid crystals, aptly named the blue phase ( Figure 1). Liquid crystals encompass a whole class of substances that exhibit a slew of interesting mesophases, intermediate between the isotropic liquid and the solid crystal. Typically, they are compounds that have very elongated (or more generally anisotropic) molecules that favor strong molecular ordering at low temperatures. The liquid crystalline phases are "liquid" in the sense that the translational symmetry of the centers of mass of their constituent molecules is (mostly) continuous, but they exhibit some crystal-like properties, such as long-range orientational ordering, and in the case of the smectic phase, translational positional ordering in one of the three dimensions. Traditionally, liquid crystals are most readily associated with the smectic and nematic phases, the latter ones becoming the "helical phase" for the case of cholesteric liquid crystals (which have chiral molecules of which a either the left-or right-handed species is predominant over the other). Since the discovery of the blue phases, however, it has become apparent that

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Blue Phases of Chiral Liquid Crystals

2014

Fundamentals of Liquid Crystal Devices

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Chiral-racemic phase diagrams of blue-phase liquid crystals

Cited by 90 publications

References 14 publications

The liquid-crystalline blue phases

The liquid-crystalline blue phases

Liquid crystal supermolecules stabilizing an optically isotropic phase with frustrated molecular organization

Blue Phases of Chiral Liquid Crystals

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