Two-Photon Absorption in Quadrupolar Bis(acceptor)-Terminated Chromophores with Electron-Rich Bis(heterocycle)vinylene Bridges
Source abstract
Abstract
Two-photon absorption spectra for a range of bis(acceptor)-substituted bis(dibutoxythienyl)ethene and bis( N -hexylpyrrolyl)ethene chromophores have been recorded using Z-scan and white-light-continuum pump−probe techniques. All the chromophores studied show strong near-infrared two-photon absorption with cross sections in the range of 2400−5900 GM (1 GM = 1 × 10 - 50 cm 4 s/photon) at photon wavelengths between 1.0 and 1.3 μm; cross sections as high as 10000 GM can be accessed close to the one-photon absorption edge. Quantum-chemical calculations reproduce the experimentally observed variations of the two-photon properties with the chemical structure.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Nonlinear Optical Materials Studies · Nonlinear Optical Materials Research · Luminescence and Fluorescent Materials
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
School of Chemistry and Biochemistry, Georgia Institute of Technology, Atlanta, Georgia 30332-0400, CREOL, The College of Optics and Photonics, University of Central Florida, Orlando, Florida 32816-2700, Institute of Solid-State Physics, Graz University of Technology, Petergasse 16, A-8010 Graz, Austria, Materials Science and Engineering Department, University of Washington, Seattle, Washington 98195, and Key Laboratory of Organic Solids, Institute of Chemistry, The Chinese Academy of Sciences, 100080...
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