Optical Limiting and Dynamical Two-Photon Absorption for Femtosecond Laser Pulses in BDBAS

Authors

  • Yu-Jin Zhang College of Physics and Electronics, Shandong Normal University, Jinan 250014, China
  • Yong Zhou
  • Jun-Yang Ma
  • Yao Chen College of Physics and Electronics, Shandong Normal University, Jinan 250014, China
  • Chuan-Kui Wang College of Physics and Electronics, Shandong Normal University, Jinan 250014, China

DOI:

https://doi.org/10.4208/jams.032714.062614a

Keywords:

optical limiting, two-photon absorption, organic molecule.

Abstract

By numerically solving the Maxwell-Bloch equations using an iterative predictor-corrector finite-difference time-domain (FDTD) technique, the optical limiting (OL) and two-photon absorption (TPA) properties for femtosecond laser pulses in a strong TPA organic molecular (4,4'-bis (di-n-butylamino) stilbene (BDBAS))medium are studied. The medium has obvious OL behavior in a certain intensity region which is dependent on the propagation distance, sample concentration, input pulse width and effect of optical ionization. Moreover, dynamical TPA cross sections are obtained, showing an increasing trend with the broadening of the pulse width and the propagation distance in the femtosecond time domain.

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Published

2014-05-01

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Issue

Vol. 5 No. 3 (2014)

Section

Articles

How to Cite

Optical Limiting and Dynamical Two-Photon Absorption for Femtosecond Laser Pulses in BDBAS. (2014). Journal of Atomic and Molecular Sciences, 5(3), 254-262. https://doi.org/10.4208/jams.032714.062614a