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Optics Express

Optics Express

  • Editor: Michael Duncan
  • Vol. 13, Iss. 26 — Dec. 26, 2005
  • pp: 10873–10881

Single-photon pumping and two-photon probing spectroscopy for the determination of absorption cross-sections in an organic semiconductor

Xinping Zhang, Yajun Xia, and Richard H. Friend  »View Author Affiliations

Optics Express, Vol. 13, Issue 26, pp. 10873-10881 (2005)

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We investigate the bleaching of two-photon absorption by single-photon excitation using femtosecond transient absorption measurements on the prototypical polyfluorene (F8), and thus introduce single-photon pumping and two-photon probing spectroscopy for the determination of absorption cross-sections in an organic semiconductor. Single-photon excitation at 3.1 eV rearranges the population distributions on the singlet excited state (1Bu ) and on the ground state (1Ag ), and probe pulses at 1.55 eV will thus be absorbed both by the singlet excited state through a single-photon process and by the partially depopulated ground state for two-photon transition from 1Ag to mAg . As a result, the two-photon absorption will be partially bleached, introducing a modulation to the total transient absorption. Probe intensity dependence of the transient absorption enables simultaneous determination of the two-photon absorption (mAg1Ag ) and exciton absorption (kAg1Bu ) cross-sections at 1.55 eV.

© 2005 Optical Society of America

OCIS Codes
(190.4180) Nonlinear optics : Multiphoton processes
(300.6500) Spectroscopy : Spectroscopy, time-resolved
(320.7150) Ultrafast optics : Ultrafast spectroscopy

ToC Category:
Research Papers

Xinping Zhang, Yajun Xia, and Richard H. Friend, "Single-photon pumping and two-photon probing spectroscopy for the determination of absorption cross-sections in an organic semiconductor," Opt. Express 13, 10873-10881 (2005)

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  1. A. J. Bain, R. J. Marsh, D. A. Armoogum, O. Mongint, L. Porrest, and M. Blanchard-Descet, "Time-resolved stimulated emission depletion in two-photon excited states," Biochem. Soc. Trans.: Intermolecular Associations in 2D and 3D 31, 1047 (2003). [CrossRef]
  2. Saulius Juodkazis, Vygantas Mizeikis, Kock Khuen Seet, Masafumi Miwa, and Hiroaki Misawa, "Two-photon lithography of nanorods in SU-8 photoresist," Nanotechnology 16, 846 (2005). [CrossRef]
  3. G. J. Brakenhoff, J. Squier, T. Norris, A. C. Bliton, M. H. Wade, and B. Athey, "Real-time two-photon confocal microscopy using a femtosecond, amplified, Ti:Sapphire system," J. Microscopy 181, 253 (1995). [CrossRef]
  4. T. Sun, Bosco K. K. Fung, I. K. Sou, G. K. L. Wong, K. S. Wong, and G. Lanzani, "Two-photon absorption autocorrelation of visible to ultraviolet femtosecond laser pulses using ZnS-based photodetectors," IEEE Photonics Technol. Lett. 14, 86 (2002). [CrossRef]
  5. A. Gambetta, T. Virgili, and G. Lanzani, "Ultrafast excitation cross-correlation photoconductivity in polyfluorene photodiodes," Appl. Phys. Lett. 86, 253509 (2005). [CrossRef]
  6. W. Blau and A. Penzkofer, "Intensity detection of picosecond ruby laser pulses by two photon absorption," Opt. Commun. 36, 419 (1981). [CrossRef]
  7. Guang S. He, Tzu-Chau Lin, and Paras N. Prasad, "New technique for degenerate two-photon absorption spectral measurements using femtosecond continuum generation," Opt. Express 10, 566 (2002). <a href="http://www.opticsexpress.org/abstract.cfm?URI=OPEX-10-13-566">http://www.opticsexpress.org/abstract.cfm?URI=OPEX-10-13-566</a> [PubMed]
  8. N. Mukherjee, A. Mukherjee, B. A. Reinhardt, "Measurement of two-photon absorption cross sections of dye molecules doped in thin films of polymethylmethacrylate," Appl. Phys. Lett. 70, 1524 (1997). [CrossRef]
  9. R. A. Negres, J. M. Hales, A. Kobyakov, D. J. Hagan, E. W. Van Stryland, "Two-photon spectroscopy and analysis with a white-light continuum probe," Opt. Lett. 27, 270 (2002). [CrossRef]
  10. Guang S. He, Gen C. Xu, and Paras N. Prasad, "Two-photon absorption and optical limiting properties of novel organic compounds," Opt. Lett. 20, 435 (1994). [CrossRef]
  11. Mikhail Drobizhev, Yuriy Stepanenko, Yuliya Dzenis, Aliaksandr Karotki, Aleksander Rebane, Peter N. Taylor, and Harry L. Anderson, "Understanding Strong Two-Photon Absorption in -Conjugated Porphyrin Dimers via Double-Resonance Enhancement in a Three-Level Model," J. Am. Chem. Soc. 126, 15352(2004). [CrossRef] [PubMed]
  12. L. M. Herz and R. T. Phillips, "Effects of interchain interactions, polarization anisotropy, and photooxidation on the ultrafast photoluminescence decay from a polyfluorene," Phys. Rev. B 61, 13691 (2000). [CrossRef]
  13. Amena L. T. Khan, Paiboon Sreearunothai, Laura M. Herz, Michael J. Banach, and Anna Köhler, "Morphology-dependent energy transfer within polyfluorene thin films," Phys. Rev. B 69, 085201 (2004). [CrossRef]
  14. M. G. Harrison, G. Urbasch, R. F. Mahrt, H. Giessen, H. Bässler, and U. Scherf, "Two-photon fluorescence and femtosecond two-photon absorption studies of MeLPPP, a ladder-type poly(phenylene) with low intrachain disorder," Chem. Phys. Lett. 313, 755 (1999). [CrossRef]
  15. S. V. Frolov, Z. Bao, M. Wohlgenannt, and Z. V. Vardeny, "Ultrafast Spectroscopy of Even-Parity States in pi -Conjugated Polymers," Phys. Rev. Lett. 85, 2196 (2000). [CrossRef] [PubMed]
  16. Mark A. Stevens, Carlos Silva, David M. Russell, and Richard H. Friend, "Exciton dissociation mechanisms in the polymeric semiconductors poly(9,9-dioctylfluorene) and poly(9,9-dioctylfluorene-cobenzothiadiazole)," Phys. Rev. B 63, 165213 (2001). [CrossRef]

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