Two-photon absorption spectra of luminescent conducting polymers measured over a wide spectral range

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Publication Type Journal Article
School or College College of Science
Department Physics
Creator Vardeny, Zeev Valentine; Gellermann, Werner
Other Author Meyer, R. K.; Liess, M.; Benner, R. E.; Ozaki, M.; Yoshino, K. ; Ding, Y.; Barton, T.
Title Two-photon absorption spectra of luminescent conducting polymers measured over a wide spectral range
Date 1997
Description We report the two-photon absorption (TPA) spectra of poly(2,5-dibutoxy-p-phenylene acetylene) (PPADBO), poly(2,5-dioctyloxy-p-phenylene vinylene) (PPV-DOO), and poly(3-hexylthiophene) (PAT6) in the spectral range extending from 576 nm to 846 nm. Using the Z-scan technique on the polymers in solution, we measured a strong two-photon allowed transition in ail three materials which we attribute to the mAg essential state. In the case of PPA-DBO and PPV-DOO, TPA peaks were coincident with dispersion in the nonlinear refractive indices as detected by reduced aperture Z scan. In all three polymers this peak occurs at approximately 1.3 the bandgap energy (Eg^). The excitonic nature of the excited electronic states in PPA-DBO is indicated by the lack of a TPA band at or near the 1 Bu exciton position. Saturation was observed in the nonlinear index of refraction near spectral peaks, as well as an apparent reverse Kramers-Kronig effect.
Type Text
Publisher International Society for Optical Engineering (SPIE)
Volume 3145
First Page 219
Last Page 228
DOI 10.1117/12.279279
citatation_issn 0277786X
Subject Two-photon absorption; Two-photon saturation; Luminescent polymers; Dispersion; Polymer solution; PPA-DBO
Subject LCSH Conducting polymers -- Optical properties; Acetylene compounds -- Optical properties
Language eng
Conference Title Optical Probes of Conjugated Polymers; Monday 28 July 1997; San Diego, CA, USA
Bibliographic Citation Meyer, R. K., Liess, M., Benner, R. E., Gellermann, W., Vardeny, Z. V., Ozaki, M., Yoshino, K. , Ding, Y., & Barton, T. (1997). Two-photon absorption spectra of luminescent conducting polymers measured over a wide spectral range. SPIE 3145, 219-28.
Rights Management (c)Society of Photo-Optical Instrumentation Engineers. One print or electronic copy may be made for personal use only. Systematic electronic or print reproduction and distribution, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper are prohibited. http://dx.doi.org/10.1117/12.279279
Format Medium application/pdf
Format Extent 1,412,452 bytes
Identifier ir-main,9864
ARK ark:/87278/s6bg36fw
Setname ir_uspace
Date Created 2012-06-13
Date Modified 2021-05-06
ID 705286
Reference URL https://collections.lib.utah.edu/ark:/87278/s6bg36fw
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