Effect of structural modifications on the switching
                    voltage of a holographic polymer-dispersed liquid crystal
                    lattice

Milavec, Jerneja; Devetak, Miha; Rupp, R. A.; Drevenšek‐Olenik, Irena

doi:10.1088/2040-8978/12/1/015106

Cited by 2 publications

(2 citation statements)

References 39 publications

(44 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This pattern induces a one-dimensional modulation of the optical properties of the sample with a periodicity of Λ = π/k ⊥ along the x axis. In the four-beam configuration, the intensity pattern is given as [25]:…”

Section: Resultsmentioning

confidence: 99%

Mechanical Manipulation of Diffractive Properties of Optical Holographic Gratings from Liquid Crystalline Elastomers

Bošnjaković

Gregorc

et al. 2018

Applied Sciences

View full text Add to dashboard Cite

An appealing property of optical diffractive structures from elastomeric materials is a possibility to regulate their optical patterns and consequently also their diffractive features with mechanical straining. We investigated the effect of strain on diffraction characteristics of holographic gratings recorded in a monodomain side-chain liquid crystalline elastomer. The strain was imposed either parallel or perpendicular to the initial alignment direction of the material. At temperatures far below the nematic-paranematic phase transition, straining along the initial alignment affects mainly the diffraction pattern, while the diffraction efficiency remains almost constant. In contrast, at temperatures close to the nematic-paranematic phase transition, the diffraction efficiency is also significantly affected. Straining in the direction perpendicular to the initial alignment strongly and diversely influences both the diffraction pattern and the diffraction efficiency. The difference between the two cases is attributed to shear-stripe domains, which form only during straining perpendicular to the initial alignment and cause optical diffraction that competes with the diffraction from the holographic grating structure.

show abstract

Section: Resultsmentioning

confidence: 99%

Mechanical Manipulation of Diffractive Properties of Optical Holographic Gratings from Liquid Crystalline Elastomers

Bošnjaković

Gregorc

et al. 2018

Applied Sciences

View full text Add to dashboard Cite

show abstract

“…POLICRYPS exhibit a hysteresis behavior under high‐frequency field switching, but the original responsiveness is restored if the grating is let idle for tens of hours. Another systematic study was performed on the LC–polymer interface using 2D and 3D POLYCRIP gratings to better understand the cause of this change in switching voltage . The inherent mixed interface phase caused a premelting of the nematic phase at the boundary of the LC domain, whose effects become more prominent to responsiveness from an electric field at higher temperatures.…”

Section: Holographically Patterned Soft Mattermentioning

confidence: 99%

Light‐directed mesoscale phase separation via holographic polymerization

Smith

Bunning

2013

J Polym Sci B Polym Phys

View full text Add to dashboard Cite

Holographic polymerization (HP) is a simple, fast, and attractive technique to fabricate one-, two-and threedimensional complex and functional nanostructures. Not only does the coupling of photopolymerization and light-directed phase separation HP process render rich polymer physics to the latter, it also leads to profound morphology-sensitive properties of HP structures, ranging from nano-to mesoscales. The past two decades witnessed tremendous progress in the field and in this review, we will probe the fundamental characteristics and parameters of HP, exemplify the versatility of this nanofabrication technique by presenting a diverse selection of HP patterned soft materials, and discuss some unique applications of such HP structures.

show abstract

Effect of structural modifications on the switching voltage of a holographic polymer-dispersed liquid crystal lattice

Cited by 2 publications

References 39 publications

Mechanical Manipulation of Diffractive Properties of Optical Holographic Gratings from Liquid Crystalline Elastomers

Mechanical Manipulation of Diffractive Properties of Optical Holographic Gratings from Liquid Crystalline Elastomers

Light‐directed mesoscale phase separation via holographic polymerization

Contact Info

Product

Resources

About