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Metalloporphyrin polymer with temporally agile, broadband nonlinear absorption for optical limiting in the near infrared.

Abstract:
A lead bis(ethynyl)porphyrin polymer possesses strong nonlinear absorption with unprecedented spectral/temporal coverage as a result of broad, overlapping two-photon and excited-state absorption bands with favorable excited-state dynamics. Consequently, this material exhibits effective optical limiting over a range of about 500 nm in the near infrared (ca. 1050 - 1600 nm) and for laser pulsewidths spanning from 75 fs to 40 ns. Introduction of the material in a waveguide device geometry results in a strong optical limiting response.
Publication status:
Published

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Publisher copy:
10.1364/oe.17.018478

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Institution:
University of Oxford
Division:
MPLS
Department:
Chemistry
Sub department:
Organic Chemistry
Role:
Author
Publisher:
Optical Society of American (OSA)
Journal:
Optics express
Volume:
17
Issue:
21
Pages:
18478-18488
Publication date:
2009-10-01
DOI:
EISSN:
1094-4087
ISSN:
1094-4087
Source identifiers:
51858
Language:
English
Keywords:
Pubs id:
pubs:51858
UUID:
uuid:a70f4bbc-d518-485a-be0e-46e04d196f30
Local pid:
pubs:51858
Deposit date:
2012-12-19

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