Title

Nonlinear Spectrometer For Characterization Of Organic And Polymeric Molecules

Abstract

We have developed a femtosecond continuum spectrometer to measure nonlinear absorption spectra from 300 nm in the UV to 1.7 μm 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.

Publication Date

12-1-1999

Publication Title

Proceedings of SPIE - The International Society for Optical Engineering

Volume

3796

Number of Pages

88-97

Document Type

Article; Proceedings Paper

Personal Identifier

scopus

Socpus ID

0033325477 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/0033325477

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