Investigating the created microstructures and the induced changes in optical properties of PMMA by irradiation of a CO2 laser

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SOHRABI S.; VESAL M.; PAZOKIAN H.; MOLLABASHI M.; Rashidian Vaziri M.R.

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Paper Information

Journal: JOURNAL OF NUCLEAR SCIENCE AND TECHNOLOGY Year:2021 | Volume:42 | Issue:2 (96) Page(s): 62-70

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Title

Investigating the created microstructures and the induced changes in optical properties of PMMA by irradiation of a CO2 laser

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Keywords

MicrostructuresQ1

PMMA polymerQ1

Laser ablationQ1

Pulsed CO2 laserQ1

Abstract

Laser irradiation of polymers leads to the change of structural and optical properties. Because of its favorable features like cheapness and biocompatibility, poly (methyl methacrylate) (PMMA) is one of those polymers that is in widespread use in different areas such as manufacturing medial microfluidic devices. The aim of the present study is to investigate the effects of the pulse number and the abovethreshold fluences of the CO2 laser in the creation of Microstructures on the surface of PMMA polymer and variation of its optical properties, like absorption coefficient, refractive index, and bandgap energy. The obtained results indicate the formation of Microstructures on the PMMA surface at the abovethreshold fluences of the CO2 laser. At a fixed fluence, the density and width of the Microstructures increase and decrease by increasing the number of incident pulses, respectively. By increasing the fluence at a fixed number of incident pulses the same trend forms in the Microstructures. In the range of investigated fluences in this study, between 10-50 J/cm2, the width of the Microstructures is measured to be between 10-15 micrometers. Consistent with previous experimental results, the results of this study indicate the enhancement of absorption coefficient, bandgap, and refractive index of the PMMA polymer after interaction with the CO2 laser.

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APA: Copy

SOHRABI, S., VESAL, M., PAZOKIAN, H., MOLLABASHI, M., & Rashidian Vaziri, M.R.. (2021). Investigating the created microstructures and the induced changes in optical properties of PMMA by irradiation of a CO2 laser. JOURNAL OF NUCLEAR SCIENCE AND TECHNOLOGY, 42(2 (96) ), 62-70. SID. https://sid.ir/paper/396814/en

Vancouver: Copy

SOHRABI S., VESAL M., PAZOKIAN H., MOLLABASHI M., Rashidian Vaziri M.R.. Investigating the created microstructures and the induced changes in optical properties of PMMA by irradiation of a CO2 laser. JOURNAL OF NUCLEAR SCIENCE AND TECHNOLOGY[Internet]. 2021;42(2 (96) ):62-70. Available from: https://sid.ir/paper/396814/en

IEEE: Copy

S. SOHRABI, M. VESAL, H. PAZOKIAN, M. MOLLABASHI, and M.R. Rashidian Vaziri, “Investigating the created microstructures and the induced changes in optical properties of PMMA by irradiation of a CO2 laser,” JOURNAL OF NUCLEAR SCIENCE AND TECHNOLOGY, vol. 42, no. 2 (96) , pp. 62–70, 2021, [Online]. Available: https://sid.ir/paper/396814/en

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