Optical properties of disperse dyes doped poly(methyl methacrylate)

Derkowska-Zielinska, Beata; Krupka, Oksana; Smokal, Vitaliy; Grabowski, A.; Naparty, M.K.; Skowroński, Łukasz

doi:10.1080/15421406.2016.1254585

Cited by 25 publications

(20 citation statements)

References 15 publications

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“…The optical radiation force of a circularly polarised Gaussian beam is expressed by the following formula for the cylindrical coordinate system 9 : where ε 0 is the dielectric constant, χ = χ r + iχ i is the electric susceptibility and s = ± 1 denotes the right- or left-handed circular polarisation. In the simulation, χ r = 1.156 and χ r = 0.202 were used according to the experiment, where an azo-polymer poly- Disperse Red 1 methacrylate (pDR1M) thin film target was used 25 . The target is thought to be isotropic and homogeneous.…”

Section: Theorymentioning

confidence: 99%

Parallel fabrication of spiral surface structures by interference pattern of circularly polarized beams

Nakata

Yoshida

Miyanaga

2018

Sci Rep

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Mass migration of photo-isomeric azo-polymers occurs according to the light intensity gradient, and the morphological surface structure can be fabricated by the artificial distribution of light by applying the interference properties of coherent laser light. Recently, the optical radiation force has played an important role in the morphology for dielectric targets, and chiral structures have been fabricated according to the spirally gathering force distribution that arises due to the electric susceptibility. On the contrary, interference laser processing has been applied to process the surface or interior of the material, and nano- or micro-structures in the lattice have been fabricated in a single exposure to the interference pattern. The unit structures are mostly axisymmetric nanowhiskers, nanodrops and nanobumps, among others. In this experiment, interference laser processing of an azo-polymer dielectric target using a circularly polarised continuous-wave (CW) laser was examined, and a spiral structure was successfully fabricated. From the viewpoint of laser processing method, an optical spiral radiation force was introduced in interference laser processing for the first time.

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Section: Theorymentioning

confidence: 99%

Parallel fabrication of spiral surface structures by interference pattern of circularly polarized beams

Nakata

Yoshida

Miyanaga

2018

Sci Rep

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“…Its derivatives are extensively studied because of their spectroscopic, photochromic, nonlinear optical properties and photostability (Sekkat and Knoll 2002;Bandara and Burdette 2012;Wang 2017;Natansohn and Rochon 2002). These properties make azobenzenes attractive candidates for applications, such as optical switches, optical limiters, optical data storage, nonlinear optical devices, and holography (Sekkat and Knoll 2002; Bandara and Burdette 2012; Natansohn and Rochon 2002;Halabieh et al 2004;Ho et al 1995;Kawata and Kawata 2000;Xie et al 1994;Zidan and Ajji 2011;Derkowska-Zielinska et al 2016, 2017a. Azobenzene can exist in two isomeric forms (stable trans and metastable cis) and reversible trans-cis isomerization is one of its key features (Sekkat and Knoll 2002;Bandara and Burdette 2012;Derkowska-Zielinska et al 2017a).…”

Section: Introductionmentioning

confidence: 99%

Influence of methyl group in a quinoline moiety on optical and light-induced properties of side-chain azo-polymers

et al. 2021

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We present the optical and photochromic properties as well as surface quality of thin films of the methacrylic copolymers containing 2-methylquinoline and quinoline azo-dyes in side chain. The extinction coefficient and refractive index were determined using spectroscopic ellipsometry combined with transmittance measurements. Photo-responsive behavior was investigated by determination of trans–cis photoisomerization rates under irradiation with unpolarized 365 nm light. We found that optical properties as well as photoisomerization rates of investigated polymers are dependent on the presence of a methyl substituent in the 2nd position of the quinoline moiety. The quality of the thin films was examined using Atomic Force Microscopy measurements.

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“…Polymers containing chromophore molecules have been extensively studied by many research groups due to their promising photonic applications to the optical data storage, surface-relief holography, optical switching, etc. [1][2][3][4][5][6][7][8]. The desirable properties of azobenzene materials are attributed to the highly efficient photo-reversable trans-cis isomerization of azobenzene moieties [9][10][11].…”

Section: Introductionmentioning

confidence: 99%

Changes in Optical Properties of Azopolymers in an Electric Field

Smokal¹,

Kharchenko²,

Krupka³

et al. 2020

Ukr. J. Phys.

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We report the preliminary results obtained for polymers incorporating the azobenzene side-group as an optically active molecule. The reversible change of the thin film absorption is observed when illuminating it with monochromatic linearly polarized light under the applied external DC field. The magnotude of a change depends on the angle between the light polarization and the DC electric field direction.

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Optical properties of disperse dyes doped poly(methyl methacrylate)

Cited by 25 publications

References 15 publications

Parallel fabrication of spiral surface structures by interference pattern of circularly polarized beams

Parallel fabrication of spiral surface structures by interference pattern of circularly polarized beams

Influence of methyl group in a quinoline moiety on optical and light-induced properties of side-chain azo-polymers

Changes in Optical Properties of Azopolymers in an Electric Field

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