Holographic gratings recorded in poly(lactic acid)/azo-dye films

Cambiasso, Javier; Goyanes, Silvia; Ledesma, Salvador

doi:10.1016/j.optmat.2015.06.002

Cited by 8 publications

(4 citation statements)

References 32 publications

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“…As we have reported in previous papers [10,24] a standard Lloyd's mirror interferometer was used to generate an interference fringe pattern over the sample. A sinusoidal interference pattern is produced by the superposition of two half of the beam: one half that impinges on the sample after being reflected in the mirror and the other that impinges straight on the sample.…”

Section: Srg Recordingmentioning

confidence: 99%

Functional surfaces through the creation of adhesion and charged patterns on azopolymer surface relief gratings

et al. 2019

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We show that an azopolymer can be used to create a supramolecular architecture in a parallel process with patterned surface properties. By illuminating with an interference pattern, we created adhesion and charge patterns that reflect the molecular ordering. We studied the recording process in two limit situations. When birefringence dominates over mass transport, an adhesion pattern was recorded even in absence of a surface relief grating (SRG). When mass transport dominates, we measured a higher frequency adhesion and relief patterns on top of the SRG. We measured an increased negative charge in the regions where molecules are expected to be parallel aligned in trans conformational state.

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Section: Srg Recordingmentioning

confidence: 99%

Functional surfaces through the creation of adhesion and charged patterns on azopolymer surface relief gratings

et al. 2019

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“…It was observed that the addition of a small amount of 0.05 wt% of CNTs leads to a new phenomenon consisting of an enhancement of the optical anisotropy [14]. Moreover, diffraction gratings were recorded on the nanocomposites, and it was shown that the CNTs addition lead to increases in the maximum diffraction efficiency as well as the remanent efficiency by 20% [15].…”

Section: Introductionmentioning

confidence: 98%

Improving PLA ductility using only 0.05% of CNTs and 0.25% of an azo-dye

Ribba

Goyanes

2016

Materials Letters

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“…The Lloyd's mirror interferometer scheme used in this experi-ment was previously employed to study photo-induced properties in azopolymer films [10,25] in our group. In this wavefront division interferometer, part of a beam impinged on the mirror at grazing incidence angle (q) and was reflected to interfere with the remaining undeflected portion of the beam.…”

Section: Srg Recordingmentioning

confidence: 99%