Abstract
We have synthesized new glassy methacrylate polymers containing a molecular-ionic (N-methylpyridinium) nonlinear optical chromophore in the side chain. A bulky tetraphenylborate (TPB) counterion was substituted at the salt unit in order to reduce the migration of the counterion during the process of poling. It was found that the poling-induced chromophore alignment of the TPB-containing polymer is significantly improved compared to that of the iodide or bromide containing polymers. The second-order nonlinear optical susceptibility, χ(2)(-2ω;ω,ω), of the poled TPB-containing polymer is approximately 5 times larger than that of the corresponding iodide analogue. Also, the temporal stability of the poled structure of the TPB-containing polymer is found to be considerably improved over that of the analogous iodide containing polymer.
| Original language | English |
|---|---|
| Pages (from-to) | 234-238 |
| Number of pages | 5 |
| Journal | Chemistry of Materials |
| Volume | 6 |
| Issue number | 2 |
| Publication status | Published - 1994 Dec 1 |
| Externally published | Yes |
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ASJC Scopus subject areas
- Materials Chemistry
- Materials Science(all)
Cite this
Second-order nonlinear optical effects in novel polymethacrylates containing a molecular-ionic chromophore in the side chain. / Choi, Dong Hoon; Wijekoon, W. M K P; Kim, H. M.; Prasad, P. N.
In: Chemistry of Materials, Vol. 6, No. 2, 01.12.1994, p. 234-238.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Second-order nonlinear optical effects in novel polymethacrylates containing a molecular-ionic chromophore in the side chain
AU - Choi, Dong Hoon
AU - Wijekoon, W. M K P
AU - Kim, H. M.
AU - Prasad, P. N.
PY - 1994/12/1
Y1 - 1994/12/1
N2 - We have synthesized new glassy methacrylate polymers containing a molecular-ionic (N-methylpyridinium) nonlinear optical chromophore in the side chain. A bulky tetraphenylborate (TPB) counterion was substituted at the salt unit in order to reduce the migration of the counterion during the process of poling. It was found that the poling-induced chromophore alignment of the TPB-containing polymer is significantly improved compared to that of the iodide or bromide containing polymers. The second-order nonlinear optical susceptibility, χ(2)(-2ω;ω,ω), of the poled TPB-containing polymer is approximately 5 times larger than that of the corresponding iodide analogue. Also, the temporal stability of the poled structure of the TPB-containing polymer is found to be considerably improved over that of the analogous iodide containing polymer.
AB - We have synthesized new glassy methacrylate polymers containing a molecular-ionic (N-methylpyridinium) nonlinear optical chromophore in the side chain. A bulky tetraphenylborate (TPB) counterion was substituted at the salt unit in order to reduce the migration of the counterion during the process of poling. It was found that the poling-induced chromophore alignment of the TPB-containing polymer is significantly improved compared to that of the iodide or bromide containing polymers. The second-order nonlinear optical susceptibility, χ(2)(-2ω;ω,ω), of the poled TPB-containing polymer is approximately 5 times larger than that of the corresponding iodide analogue. Also, the temporal stability of the poled structure of the TPB-containing polymer is found to be considerably improved over that of the analogous iodide containing polymer.
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M3 - Article
AN - SCOPUS:0002260810
VL - 6
SP - 234
EP - 238
JO - Chemistry of Materials
JF - Chemistry of Materials
SN - 0897-4756
IS - 2
ER -