Amir Muhammad Noh, Amin Abdul Rahman and Hazizan, Md Akil and Mohd Kamil, Abd Rahman and Noorlisa, Harun and Zulkifli, Ahmad (2024) Refractive index tuning and birefringence effect in crosslinked siloxane-acrylate copolymers for optical waveguide applications. Materials Chemistry and Physics, 321 (129433). pp. 1-8. ISSN 0254-0584. (Published)
|
Pdf
Refractive index tuning and birefringence effect in crosslinked_ABST.pdf Download (248kB) | Preview |
|
![[img]](http://umpir.ump.edu.my/style/images/fileicons/other.png) |
Pdf
Refractive index tuning and birefringence effect in crosslinked.pdf Restricted to Repository staff only Download (3MB) | Request a copy |
Abstract
Tunability of refractive index of polymeric waveguide material could be made by controlling free volume as well as polarizability of constituent materials. Two acrylate-co-polysiloxane series of different crosslinking network were synthesised by utilizing different crosslinker and monomer feeding ratio. Using Claussius-Mossotti/Lorentz-Lorentz (CM/LL) model, fractional free volumes were calculated showing a decrease in the experimental (nexp) compared to theoretical (ni) refractive indices. Curing agent with asymmetrical configuration induce a crosslink network of higher birefringence. They were respectively fabricated into multimode channel waveguide whose core-clad refractive index differences (Δn) show values in the range 0.0049–0.0408.
| Item Type: | Article |
|---|---|
| Additional Information: | Indexed by Scopus |
| Uncontrolled Keywords: | Refractive index; Free volume; Polarizability; Acrylate-siloxane copolymer; Waveguide |
| Subjects: | T Technology > TP Chemical technology |
| Faculty/Division: | Faculty of Chemical and Process Engineering Technology |
| Depositing User: | Mrs Norsaini Abdul Samat |
| Date Deposited: | 12 Jul 2024 08:20 |
| Last Modified: | 12 Jul 2024 08:20 |
| URI: | http://umpir.ump.edu.my/id/eprint/41919 |
| Download Statistic: | View Download Statistics |
Actions (login required)
 |
View Item |