The third- and fifth-order optical nonlinear properties of a new stilbazolium derivative, trans-1-[p-(p-dimethylaminobenzyl-azo)-benzyl]-2-(N-methyl-4-pyridinium)-ethene iodide (DABAZO-PEI), were investigated with a Q-switched and mode-locked pulse laser with a duration of 35 ps at 1064 nm. Its linear optical properties were also discussed. DABAZO-PEI exhibits two-photon absorption and strong excited-state absorption induced by two-photon absorption. A positive third-order nonlinear refraction caused by bound electrons and negative excited-state refraction caused by the two-photon absorption-generated excited states were also observed. The magnitude and the sign of the real (refractive) and the imaginary (two-photon absorption) parts of the molecular third-order polarizability, and the excited-state absorption and refraction cross sections, were measured. A feature worth noting is the values of excited-state absorption and refraction cross sections. They are all as high as 10⁻¹⁷ cm². Based on the excited-state absorption induced by the two-photon-absorption mechanism, a highly efficient optical-limiting behavior for incident fluence in the range of 0–10 J/cm² was demonstrated in a 1-cm-path quartz cell containing DABAZO-PEI solution in dimethyl sulfoxide. The optical-limiting threshold was estimated to be as low as 5 mJ/cm².

© 2002 Optical Society of America

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
Log in to access OSA Member Subscription

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
Log in to access OSA Member Subscription

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
Log in to access OSA Member Subscription

Related Journal Articles

• Nonlinear absorption and optical limiting of laser pulses in a liquid-cored fiber array (JOSAB)
• Bragg solitons in the nonlinear Schrödinger limit: experiment and theory (JOSAB)
• Experimental demonstration of a Raman effectbased optical transistor (OL)
• All-optical control of Bragg grating in semiconductor-coated D-shaped fiber (OL)
• Enhanced all-optical switching by use of a nonlinear fiber ring resonator (OL)

Related Conference Papers

• Nonlinear 1D photonic polymer optical limiter materials
• Nonlinear switching in a symmetrical Sagnac interferometer including a quarter-wave plate
• Sub-40-fs pulses with 18-W average power from a passively mode-locked thin disk Yb:YAG laser with nonlinear fiber compression
• Sub-40-fs pulses with 18-W average power from a passively mode-locked thin disk Yb:YAG laser with nonlinear fiber compression
• Cross Talk in a Fibre Parametric Wavelength Converter
• A 104GHz 328fs soliton pulse train generation through a comb-like dispersion profiled fiber using short high nonlinearity dispersion shifted fibers
• A 104GHz 328fs soliton pulse train generation through a comb-like dispersion profiled fiber using short high nonlinearity dispersion shifted fibers