Dielectric breakdown of rubber materials by femtosecond irradiation

K. Yamasaki, S. Juodkazis, T. Lippert, M. Watanabe, Shigeki Matsuo, H. Misawa

研究成果: Article

21 引用 (Scopus)

抄録

We report the reversible micro-structuring of a synthetic rubber polymer (cis1,4-polybutadiene (PB)) by femtosecond laser illumination. Visco-elastic relaxation of the optically damaged region was observed. The recovery time, typically 102-104 ms, can be varied by changing the irradiation pulse energy. Multi-shot-induced damage recovers on the much longer scale of 101-102 s. It was found that the doping of PB by 4 wt. % of pentazadiene ([4-NO2]-phenyl-N=N-N(C3 H7)-N=N-phenyl-[4-NO2]) reduces the threshold of light-induced photo-modification by 20%. This is explained by photo-induced (homolytic) cleavage of the pentazadiene bonds and formation of gaseous N2, which facilitates material failure at the irradiated spot. The recovery of optical transmission can be applied to optical memory, optical and micro-mechanical applications. The underlying mechanism of the phenomenon is discussed in terms of anelastic α and β-relaxation (polymer backbone and chains/coils relaxation, respectively).

元の言語English
ページ(範囲)325-329
ページ数5
ジャーナルApplied Physics A: Materials Science and Processing
76
発行部数3
DOI
出版物ステータスPublished - 2003 3
外部発表Yes

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Polybutadienes
Rubber
Electric breakdown
rubber
polybutadiene
Polymers
breakdown
Irradiation
Elastomers
Synthetic rubber
Recovery
Optical data storage
irradiation
synthetic rubbers
Light transmission
Ultrashort pulses
recovery
Lighting
Doping (additives)
polymers

ASJC Scopus subject areas

  • Materials Science(all)
  • Physics and Astronomy (miscellaneous)

これを引用

Dielectric breakdown of rubber materials by femtosecond irradiation. / Yamasaki, K.; Juodkazis, S.; Lippert, T.; Watanabe, M.; Matsuo, Shigeki; Misawa, H.

:: Applied Physics A: Materials Science and Processing, 巻 76, 番号 3, 03.2003, p. 325-329.

研究成果: Article

Yamasaki, K. ; Juodkazis, S. ; Lippert, T. ; Watanabe, M. ; Matsuo, Shigeki ; Misawa, H. / Dielectric breakdown of rubber materials by femtosecond irradiation. :: Applied Physics A: Materials Science and Processing. 2003 ; 巻 76, 番号 3. pp. 325-329.
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