Nonlinear reflection from polymer surfaces during femtosecond ultraviolet photoablation

D. Xenakis, C. Kalpouzos, C. Fotakis, Z. Bor, Bela Racz, Gabor Szabo

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

The sub-picosecond response of the surface reflectivity of different polymers during ablation was measured using a pump-and-probe technique. Ablation was generated by a 0.5 ps duration KrF excimer laser. The time-dependent reflectivity of the surfaces was measured by a 496 nm, 0.5 ps long, low power laser. It showed an up to 4-fold increase from the unirradiated sample to a maximum of 94% within less than a picosecond and with a few picoseconds falltime. The spectrum of the ultraviolet light reflected from the spot is blue-shifted and exhibits more than three times the bandwidth of the incident radiation.

Original languageEnglish
Title of host publicationProceedings of SPIE - The International Society for Optical Engineering
EditorsWilly L. Bohn, Helmut Huegel
PublisherSociety of Photo-Optical Instrumentation Engineers
Pages682-686
Number of pages5
Volume2502
ISBN (Print)0819418609
Publication statusPublished - 1995
EventGas Flow and Chemical Lasers: Tenth Int. Symposium - Friedrichshafen, Ger
Duration: Sep 5 1994Sep 5 1994

Other

OtherGas Flow and Chemical Lasers: Tenth Int. Symposium
CityFriedrichshafen, Ger
Period9/5/949/5/94

Fingerprint

Ablation
ablation
reflectance
incident radiation
polymers
Excimer lasers
Polymers
ultraviolet radiation
excimer lasers
Pumps
pumps
bandwidth
Bandwidth
Radiation
Lasers
probes
lasers
Ultraviolet Rays

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Condensed Matter Physics

Cite this

Xenakis, D., Kalpouzos, C., Fotakis, C., Bor, Z., Racz, B., & Szabo, G. (1995). Nonlinear reflection from polymer surfaces during femtosecond ultraviolet photoablation. In W. L. Bohn, & H. Huegel (Eds.), Proceedings of SPIE - The International Society for Optical Engineering (Vol. 2502, pp. 682-686). Society of Photo-Optical Instrumentation Engineers.

Nonlinear reflection from polymer surfaces during femtosecond ultraviolet photoablation. / Xenakis, D.; Kalpouzos, C.; Fotakis, C.; Bor, Z.; Racz, Bela; Szabo, Gabor.

Proceedings of SPIE - The International Society for Optical Engineering. ed. / Willy L. Bohn; Helmut Huegel. Vol. 2502 Society of Photo-Optical Instrumentation Engineers, 1995. p. 682-686.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Xenakis, D, Kalpouzos, C, Fotakis, C, Bor, Z, Racz, B & Szabo, G 1995, Nonlinear reflection from polymer surfaces during femtosecond ultraviolet photoablation. in WL Bohn & H Huegel (eds), Proceedings of SPIE - The International Society for Optical Engineering. vol. 2502, Society of Photo-Optical Instrumentation Engineers, pp. 682-686, Gas Flow and Chemical Lasers: Tenth Int. Symposium, Friedrichshafen, Ger, 9/5/94.
Xenakis D, Kalpouzos C, Fotakis C, Bor Z, Racz B, Szabo G. Nonlinear reflection from polymer surfaces during femtosecond ultraviolet photoablation. In Bohn WL, Huegel H, editors, Proceedings of SPIE - The International Society for Optical Engineering. Vol. 2502. Society of Photo-Optical Instrumentation Engineers. 1995. p. 682-686
Xenakis, D. ; Kalpouzos, C. ; Fotakis, C. ; Bor, Z. ; Racz, Bela ; Szabo, Gabor. / Nonlinear reflection from polymer surfaces during femtosecond ultraviolet photoablation. Proceedings of SPIE - The International Society for Optical Engineering. editor / Willy L. Bohn ; Helmut Huegel. Vol. 2502 Society of Photo-Optical Instrumentation Engineers, 1995. pp. 682-686
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