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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 16, Iss. 7 — Mar. 31, 2008
  • pp: 4739–4746

Large irradiance limiting induced by three-photon absorption of a symmetrical fluorene-based molecule

Junhui Liu, Yanli Mao, Yuzong Gu, Mingju Huang, Weifeng Zhang, Lijun Guo, and Wenbo Ma  »View Author Affiliations

Optics Express, Vol. 16, Issue 7, pp. 4739-4746 (2008)

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Herein, three-photon absorption (3PA) effect of a symmetrical fluorene-based molecule, pumped with 38 ps Q-switched 1064 nm laser pulses, is reported. An accurate Gaussian fitting method is used to obtain the three-photon absorption cross-section. The obtained three-photon absorption cross-section, 8.54×10-76 cm6 s2, is very high. The irradiance limiting nonlinear transmittance is as low as 2% when the incident irradiance is 120 GW/cm2. The geometry and electronic transition of the molecule are systematically studied by AM1 and TD SCF/DFT methods.

© 2008 Optical Society of America

OCIS Codes
(190.4400) Nonlinear optics : Nonlinear optics, materials
(190.4710) Nonlinear optics : Optical nonlinearities in organic materials
(270.4180) Quantum optics : Multiphoton processes

ToC Category:
Nonlinear Optics

Original Manuscript: January 9, 2008
Revised Manuscript: February 15, 2008
Manuscript Accepted: March 10, 2008
Published: March 24, 2008

Junhui Liu, Yanli Mao, Yuzong Gu, Mingju Huang, Weifeng Zhang, Lijun Guo, and Wenbo Ma, "Large irradiance limiting induced by three-photon absorption of a symmetrical fluorene-based molecule," Opt. Express 16, 4739-4746 (2008)

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