NDLI: Two-photon absorption spectra of fluorene derivatives

Content Provider	IEEE Xplore Digital Library
Author	Hales, J. Schafer, K.J. Morales, A.M. Belfield, K.D. Hagan, D.J. Van Stryland, E.W.
Copyright Year	2002
Description	Author affiliation: Sch. of Opt., Central Florida Univ., Orlando, FL, USA (Hales, J.; Schafer, K.J.; Morales, A.M.; Belfield, K.D.; Hagan, D.J.; Van Stryland, E.W.)
Abstract	Summary form only given. Two-photon absorption (2PA) has achieved appreciable interest in a wide array of fields including all-optical switching, two-photon fluorescence microscopy, and optical power limiting. Consequently, it is a goal to find materials that exhibit large 2PA cross-sections. Organic materials are strong candidates for these applications because their material properties can be tailored through molecular engineering. This not only allows organics to be utilized in a wide variety of applications, but also provides a means to analyze structure-property relationships for a class of samples. We present a method for rapid characterization of 2PA materials using a femtosecond white-light continuum (WLC) pump-probe nonlinear spectrometer. In this experimental instrument, a strong pump beam induces a nonlinear response in the system under investigation and a weak, broad-band WLC beam probes the induced nonlinearity. The 2PA process requires simultaneous absorption of one photon from both the pump and probe beams and the outcome is the nondegenerate 2PA spectrum of the sample. We have synthesized a group of fluorene derivatives in order to investigate the structure-property relationships of these dyes.
Sponsorship	IEEE/Lasers & Electro-Opt. Soc. OSA-Opt. Soc. America Quantum Electron. Div. Eur. Phys. Soc. Opt. Soc. Japanese Quantum Electron. Joint Group
File Size	138823
File Format	PDF
ISBN	1557527067
DOI	10.1109/CLEO.2002.1033871
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2002-05-24
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Optical Soc. of America
Subject Keyword	Optical microscopy Absorption Fluorescence Laser excitation Optical pumping Optical materials Ultrafast optics Probes Nonlinear optics Optical arrays
Content Type	Text
Resource Type	Article

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