Optical limiting properties of a zinc porphyrin polymer and its dimer and monomer model compounds

F. M. Qureshi, S. J. Martin, X. Long, D. D C Bradley, F. Z. Henari, W. J. Blau, E. C. Smith, C. H. Wang, A. K. Kar, H. L. Anderson

Research output: Contribution to journalArticle

Abstract

We report on the strong decrease in laser light transmission with increasing excitation intensity observed in thin films of a zinc porphyrin polymer and its dimer and monomer model compounds. Nonlinear transmission measurements performed at 532 nm using 500 ps laser pulses show decreases of 40%, 60% and 65% at input fluences of 0.01 J/cm2 for the monomer, dimer and polymer thin films, respectively. Its application as an optical limiting device for the protection of the eyes and optical sensors from high-fluence laser pulses is assessed. Additional pump-probe measurements performed at 595 nm using 0.8 ps excitation allow us to discuss the strong response in terms of a six-level model of the electronic structure.

Original languageEnglish
Pages (from-to)87-94
Number of pages8
JournalChemical Physics
Volume231
Issue number1
Publication statusPublished - 15 May 1998

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porphyrins
monomers
zinc
dimers
optical properties
fluence
polymers
lasers
light transmission
optical measuring instruments
thin films
pulses
excitation
pumps
electronic structure
probes
sensors

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Qureshi, F. M., Martin, S. J., Long, X., Bradley, D. D. C., Henari, F. Z., Blau, W. J., ... Anderson, H. L. (1998). Optical limiting properties of a zinc porphyrin polymer and its dimer and monomer model compounds. Chemical Physics, 231(1), 87-94.
Qureshi, F. M. ; Martin, S. J. ; Long, X. ; Bradley, D. D C ; Henari, F. Z. ; Blau, W. J. ; Smith, E. C. ; Wang, C. H. ; Kar, A. K. ; Anderson, H. L. / Optical limiting properties of a zinc porphyrin polymer and its dimer and monomer model compounds. In: Chemical Physics. 1998 ; Vol. 231, No. 1. pp. 87-94.
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Qureshi, FM, Martin, SJ, Long, X, Bradley, DDC, Henari, FZ, Blau, WJ, Smith, EC, Wang, CH, Kar, AK & Anderson, HL 1998, 'Optical limiting properties of a zinc porphyrin polymer and its dimer and monomer model compounds', Chemical Physics, vol. 231, no. 1, pp. 87-94.

Optical limiting properties of a zinc porphyrin polymer and its dimer and monomer model compounds. / Qureshi, F. M.; Martin, S. J.; Long, X.; Bradley, D. D C; Henari, F. Z.; Blau, W. J.; Smith, E. C.; Wang, C. H.; Kar, A. K.; Anderson, H. L.

In: Chemical Physics, Vol. 231, No. 1, 15.05.1998, p. 87-94.

Research output: Contribution to journalArticle

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T1 - Optical limiting properties of a zinc porphyrin polymer and its dimer and monomer model compounds

AU - Qureshi, F. M.

AU - Martin, S. J.

AU - Long, X.

AU - Bradley, D. D C

AU - Henari, F. Z.

AU - Blau, W. J.

AU - Smith, E. C.

AU - Wang, C. H.

AU - Kar, A. K.

AU - Anderson, H. L.

PY - 1998/5/15

Y1 - 1998/5/15

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AB - We report on the strong decrease in laser light transmission with increasing excitation intensity observed in thin films of a zinc porphyrin polymer and its dimer and monomer model compounds. Nonlinear transmission measurements performed at 532 nm using 500 ps laser pulses show decreases of 40%, 60% and 65% at input fluences of 0.01 J/cm2 for the monomer, dimer and polymer thin films, respectively. Its application as an optical limiting device for the protection of the eyes and optical sensors from high-fluence laser pulses is assessed. Additional pump-probe measurements performed at 595 nm using 0.8 ps excitation allow us to discuss the strong response in terms of a six-level model of the electronic structure.

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Qureshi FM, Martin SJ, Long X, Bradley DDC, Henari FZ, Blau WJ et al. Optical limiting properties of a zinc porphyrin polymer and its dimer and monomer model compounds. Chemical Physics. 1998 May 15;231(1):87-94.