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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Chia-Chen Hsu Tzer-Hsiang Huang Fen-Fen Yeh Sean Liu Ming-Hsiung Chia-Yi Tien-Yau Luh Sattigeri, J.A. Chung-Wai Shiau |
| Copyright Year | 1998 |
| Description | Author affiliation: Dept. of Phys., Nat. Chung Cheng Univ., Chia-Yi, Taiwan (Chia-Chen Hsu) |
| Abstract | Conjugated organic chromophores capped with electron donor and acceptor groups are known to have good electro-optical (E-O) properties such as large second order susceptibility. Much research activity has been focused on these molecules to search for possible applications in second harmonic generation, frequency conversion, and E-O modulation. Organic chromophores used in second order nonlinear devices must be noncentrosymmetric such that their first hyperpolarizabilities (/spl beta/) are nonvanishing. Furthermore, in macroscopic scale organic chromophores should be arranged into a noncentrosymmetric distribution with a nonzero second order susceptibility. This is usually achieved by poling organic chromophores with a static electric field Recently, Kauranen et al. (1995) have shown that organic chromophores can be organized as orientationally correlated side groups of the polymers with a rigid backbone. In such organization, each chromophore contributes coherently to both /spl mu/ (permanent dipole moment) and /spl beta/ of the polymers and hence the second order nonlinear responses of the polymers are enhanced. In the paper, the hyperpolarizabilities of the push-pull chromophores and the polynorbornenes that contain the push-pull chromophores as side groups are measured and compared using the long wavelength hyper-Rayleigh scattering (HRS) technique. |
| Starting Page | 81 |
| Ending Page | 83 |
| File Size | 215721 |
| Page Count | 3 |
| File Format | |
| ISBN | 0780349504 |
| DOI | 10.1109/NLO.1998.710188 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 1998-08-10 |
| Publisher Place | USA |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Polymers Fluorescence Interference Band pass filters Frequency conversion Spine Wavelength measurement Optical scattering Optical harmonic generation Absorption |
| Content Type | Text |
| Resource Type | Article |
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