Chandra, Manabendra ; Indi, S. S. ; Das, Puspendu K. (2006) First hyperpolarizabilities of unprotected and polymer protected copper nanoparticles prepared by laser ablation Chemical Physics Letters, 422 (1-3). pp. 262-266. ISSN 0009-2614
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Official URL: http://linkinghub.elsevier.com/retrieve/pii/S00092...
Related URL: http://dx.doi.org/10.1016/j.cplett.2006.02.072
Abstract
In this Letter, we report the first hyperpolarizability of Cu nanoparticles in organic media with and without any stabilizer. Copper nanoparticles of ~9 nm size were prepared by laser ablation of a Cu-metal target immersed in isopropanol both in the presence and absence of polyvinyl pyrrolidone (PVP, a stabilizer and a surface modification agent). The first hyperpolarizability of the nanoparticles was measured by the hyper-Rayleigh scattering (HRS) technique. Both types of nanoparticles show large second harmonic response and the ß values are (414 ± 19) × 10-30 esu/atom½ for the unprotected and (808 ± 12) × 10-30 esu/atom½ for the PVP protected Cu-nanoparticles.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to Elsevier Science. |
| ID Code: | 10053 |
| Deposited On: | 02 Nov 2010 09:59 |
| Last Modified: | 30 May 2011 10:08 |
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