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Chinese Optics Letters

Chinese Optics Letters

| PUBLISHED MONTHLY BY CHINESE LASER PRESS AND DISTRIBUTED BY OSA

  • Vol. 3, Iss. S1 — Aug. 28, 2005
  • pp: S128–S130

First hyperpolarizabilities of several azobenzene derivatives studied by hyper-Rayleigh scattering (HRS)

Jing Zhu, Xin Wang, Changgui Lv, Yiping Cui, Chaozhi Zhang, and Guoyuan Lu  »View Author Affiliations


Chinese Optics Letters, Vol. 3, Issue S1, pp. S128-S130 (2005)


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Abstract

The first hyperpolarizabilities ('beta') of four azobenzene derivatives are measured via hyper-Rayleigh scattering (HRS) technique at 1064 nm. These compounds show weak absorbance at 532 nm and neglectable two-photon fluorescence (TPF). Their static first hyperpolarizabilities ('beta0') are estimated by the classical two-level model. The effects of varying the variety and number of the acceptors from chloro to nitro substituents are studied. It is concluded that the first hyperpolarizabilities will be enhanced with increasing polarity or number of the acceptors, attributed to improved transferability of their 'pi'-conjugated electron clouds.

© 2005 Chinese Optics Letters

OCIS Codes
(160.4330) Materials : Nonlinear optical materials
(160.4890) Materials : Organic materials
(190.4410) Nonlinear optics : Nonlinear optics, parametric processes
(190.4710) Nonlinear optics : Optical nonlinearities in organic materials
(300.6410) Spectroscopy : Spectroscopy, multiphoton

Citation
Jing Zhu, Xin Wang, Changgui Lv, Yiping Cui, Chaozhi Zhang, and Guoyuan Lu, "First hyperpolarizabilities of several azobenzene derivatives studied by hyper-Rayleigh scattering (HRS)," Chin. Opt. Lett. 3, S128-S130 (2005)
http://www.opticsinfobase.org/col/abstract.cfm?URI=col-3-S1-S128


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