| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 5402999 | Journal of Luminescence | 2009 | 7 Pages |
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, 780-900Â 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.
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Authors
Debdas Ray, Amit Nag, Debabrata Goswami, Parimal K. Bharadwaj,