Polymer like response of muscovite upon 515 nm femtosecond laser pulse processing

Awasthi, Saurabh; Little, Douglas; Fuerbach, Alexander; Kane, D. M.

doi:10.1016/j.optlastec.2020.106641

Cited by 11 publications

(2 citation statements)

References 23 publications

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“…The nonlinear ionization effect of laser causes the elimination of surface atoms in the treated area. This results in alternations of polymer properties [13]. Similarly, the alternations in chemical properties of the polymeric matter are practically appropriate procedures for the manufacture of nanomaterials, 3D photopolymerization and laser lithography [14].…”

Section: Introductionmentioning

confidence: 99%

Effect of GaAs pulsed laser on the structure and optical characterization of Makrofol VLG 7-1

Bahareth

2022

Arab Journal of Nuclear Sciences and Applications

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Samples ofMakrofol films were exposed to different laser fluences (2-18 J/cm 2 ). X-ray diffraction (XRD) and ultraviolet spectroscopy (UVs) techniques were used to explore the resultant effect of laser radiation on the structure and optical characteristics of the Makrofol polymer. The change of refractive index (n) and the optical band gap (Eg) with the laser fluence was interpreted. A reduction in the Eg values (3.08-2.54 electron volt) was observed when raising the laser fluence up to 18 J/cm 2 . This was accompanied by an increase in refractive index from 2.376 to 2.533. This was attributed to the prevalence of crosslinking that damaged the crystalline portion in the Makrofol polymer. The crosslinking created color centers that induced differences in color between the exposed films and the uncolored pristine Makrofol film. The color difference was significant as the values of E were greater than 5. This optimized the Makrofol polymer to be used in dosimetric applications.

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Section: Introductionmentioning

confidence: 99%

Effect of GaAs pulsed laser on the structure and optical characterization of Makrofol VLG 7-1

Bahareth

2022

Arab Journal of Nuclear Sciences and Applications

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“…The nonlinear ionization effect of laser causes the elimination of surface atoms in the treated area. This results in alternations of polymer properties [5]. Likewise, the changes in chemical properties of polymeric matter are almost appropriate processes for the production of nanomaterials, 3D photo-polymerization and laser lithography [6].…”

Section: Introductionmentioning

confidence: 99%

Radiation Induced Changes in Makrofol PCVM Polycarbonate

Bahareth¹

2022

J Miner Sci Materials

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Makrofol PCVM is a sort of Makrofol polycarbonate solid state nuclear track detector. It is worth mentioning that this paper is almost the first one that deals with the modification of the optical properties of this type of Makrofol under the effect of laser radiation. Samples from Makrofol PCVM were exposed to infrared pulsed laser with different fluences ranging from 15 to 125 J/cm2 . UV spectroscopic technique was used to obtain knowledge about the optical parameters that describe the samples under study. The changes of Urbach energy (Eu ), optical band gap (Eg ) and refractive index (n) with the laser fluence were investigated. Both Eu and n increased with increasing the fluence up to 125 J/cm2 , associated with a decrease of Eg values. These trends were assigned to the predominance of chain crosslinking that damaged the crystalline portion in the Makrofol polymer. Additionally, we used the CIE technique to calculate the color differences between the noncoloured pristine and the irradiated samples. The crosslinking created color centers that produced color difference between the exposed films and the uncolored pristine Makrofol film. The color difference was significant as the values of ΔE were greater than 5. This optimized the Makrofol polymer to be used in dosimetric applications.

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Micro-groove manufacturing via a femtosecond laser on optically clear adhesive films

Duan

Zhou

Duan

2022

Applied Surface Science

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Polymer like response of muscovite upon 515 nm femtosecond laser pulse processing

Cited by 11 publications

References 23 publications

Effect of GaAs pulsed laser on the structure and optical characterization of Makrofol VLG 7-1

Effect of GaAs pulsed laser on the structure and optical characterization of Makrofol VLG 7-1

Radiation Induced Changes in Makrofol PCVM Polycarbonate

Micro-groove manufacturing via a femtosecond laser on optically clear adhesive films

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