论文信息 - Photophysical properties and TPA optical limiting of two new organic compounds

Photophysical properties and TPA optical limiting of two new organic compounds

The emission and optical limiting properties of two new organic compounds have been experimentally investigated. Pumping by picosecond and nanosecond lasers, respectively, these two compounds possess strong two-photon absorption and optical limiting effects. The results of time-resolved fluorescence of them in DMF solvent at the different concentrations and small quantum yields indicate that the non-radiation process and reabsorption result in the low emission efficiency of these new molecules with large two-photon absorption (TPA) cross-sections.

[1] T. F. Boggess,et al. A review of optical limiting mechanisms and devices using organics, fullerenes, semiconductors and other materials , 1993 .

[2] Paras N. Prasad,et al. New Class of Two-Photon-Absorbing Chromophores Based on Dithienothiophene , 2000 .

[3] Paras N. Prasad,et al. ERRATUM: Nonlinear multiphoton processes in organic and polymeric materials , 1996 .

[4] Hugh J. Byrne,et al. Reverse saturable absorption in tetraphenylporphyrins , 1985 .

[5] J. Perry,et al. Two-photon absorption and broadband optical limiting with bis-donor stilbenes. , 1997, Optics letters.

[6] C. Spangler. Recent development in the design of organic materials for optical power limiting , 1999 .

[7] W. Webb,et al. Design of organic molecules with large two-photon absorption cross sections. , 1998, Science.

[8] N. Xu,et al. Spectral properties and effective upconverted lasing of new organic molecules , 2000 .

[9] P. Prasad,et al. Two-photon absorption and optical-limiting properties of novel organic compounds. , 1995, Optics letters.

[10] Paras N. Prasad,et al. Studies of two-photon pumped frequency-upconverted lasing properties of a new dye material , 1997 .

[11] Paras N. Prasad,et al. Newly synthesized dyes and their polymer/glass composites for one- and two-photon pumped solid-state cavity lasing , 1995 .