Abstract

Poly(indenofluorene) shows a strong degenerate four-wave mixing (DFWM) response when it is excited with 100-fs pulses at 800 nm. The DFWM signal scales with the 1.5 power of the input intensity, which we interpret as being due to absorption saturation phenomena. The saturation was studied by open-aperture Z scan in dilute solutions of poly(indenofluorene) in chloroform. The changes in the absorption coefficient α are described by the formula α=α0/1+I/Isat1/2, where Isat is the saturation intensity, which is found to be of the order of 100 MW/cm2.

© 1998 Optical Society of America

Full Article  |  PDF Article
Related Articles
Dispersion of the fifth-order nonlinear optical susceptibility χ113333(5)(ω; ω, 0, 0, 0, 0) of a polydiacetylene film

Ke Yang, Jayant Kumar, Woohong Kim, and Sukant Tripathy
J. Opt. Soc. Am. B 17(2) 247-255 (2000)

Fourier analysis of the femtosecond hyper-Rayleigh scattering signal from ionic fluorescent hemicyanine dyes

Koen Clays, Kurt Wostyn, Geert Olbrechts, André Persoons, Akira Watanabe, Kyoko Nogi, Xuan-Ming Duan, Shuji Okada, Hidetoshi Oikawa, Hachiro Nakanishi, Henryk Vogel, David Beljonne, and Jean-Luc Brédas
J. Opt. Soc. Am. B 17(2) 256-265 (2000)

Relaxation dynamics of photoexcitations in polydiacetylenes and polythiophene

Takayoshi Kobayashi, Masayuki Yoshizawa, Uwe Stamm, Makoto Taiji, and Masamitsu Hasegawa
J. Opt. Soc. Am. B 7(8) 1558-1578 (1990)

References

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Figures (5)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Equations (5)

You do not have subscription access to this journal. Equations are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Metrics

You do not have subscription access to this journal. Article level metrics are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription