Ray, Debdas ; Nag, Amit ; Goswami, Debabrata ; Bharadwaj, Parimal K. (2009) Acyclic donor-acceptor-donor chromophores for large enhancement of two-photon absorption cross-section in the presence of Mg(II), Ca(II) or Zn(II) ions Journal of Luminescence, 129 (3). pp. 256-262. ISSN 0022-2313
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Official URL: http://www.sciencedirect.com/science/article/pii/S...
Related URL: http://dx.doi.org/10.1016/j.jlumin.2008.10.005
Abstract
Two new chromophores in the format, donor-acceptor-donor, have been synthesized in high yields from easily available starting materials. These compounds do not show any two-photon absorption (TPA) cross-section in the wavelength range, 780-900 nm when probed by the Z-scan technique with a femtosecond laser. However, in presence of Zn(II), Ca(II) or Mg(II) ion, each compound gives exceptionally large TPA cross-section in the same wavelength range.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to Elsevier Science. |
| Keywords: | Two-photon Absorption; Optical Nonlinearity; Alkaline Earth Metals; Transition Metals |
| ID Code: | 78696 |
| Deposited On: | 23 Jan 2012 03:57 |
| Last Modified: | 23 Jan 2012 03:57 |
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