Nonlinear spectrometer for characterization of organic and polymeric molecules

Raluca A. Negres; Eric W. Van Stryland; David J. Hagan; Kevin D. Belfield; Katherine J. Schafer; Olga V. Przhonska; Bruce A. Reinhardt

doi:10.1117/12.368263

11 October 1999 Nonlinear spectrometer for characterization of organic and polymeric molecules

Raluca A. Negres, Eric W. Van Stryland, David J. Hagan, Kevin D. Belfield, Katherine J. Schafer, Olga V. Przhonska, Bruce A. Reinhardt

Author Affiliations +

Proceedings Volume 3796, Organic Nonlinear Optical Materials; (1999) https://doi.org/10.1117/12.368263
Event: SPIE's International Symposium on Optical Science, Engineering, and Instrumentation, 1999, Denver, CO, United States

Abstract

We have developed a femtosecond continuum spectrometer to measure nonlinear absorption spectra from 300 nm in the UV to 1.7 micrometers in the IR. This method is applied for measuring NLA spectra of semiconductor, organic and polymeric materials. The pump-probe nature of the experiment also allows the temporal response to be determined, thus helping in the determining of the underlying physical mechanisms for the nonlinearity. We describe studies of two-photon absorption in a series of alkyl fluorenes and excited state absorption dynamics in a series of polymethines using this spectrometer.

Citation Download Citation

Raluca A. Negres, Eric W. Van Stryland, David J. Hagan, Kevin D. Belfield, Katherine J. Schafer, Olga V. Przhonska, and Bruce A. Reinhardt "Nonlinear spectrometer for characterization of organic and polymeric molecules", Proc. SPIE 3796, Organic Nonlinear Optical Materials, (11 October 1999); https://doi.org/10.1117/12.368263

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