1. Karim, M. R., K. T. Lim, C. J. Lee, and M. S. Lee, "A facile synthesis of polythiophene nanowires," Synthetic Metals, Vol. 157, 1008-1012, 2007.
doi:10.1016/j.synthmet.2007.10.010        Google Scholar

2. Ahn, S. H., M. Z. Czae, E. R. Kim, and H. Lee, "Synthesis andcharacterization of soluble polythiophene derivatives containing electron-transporting moiety," Macromolecules, Vol. 34, 2522-2527, 2001.
doi:10.1021/ma000503p        Google Scholar

3. Daik, R. and S. Maniam, "UV-visible absorption of alkyl-substituted poly (thiophene) solutions upon exposure to oxygen gas," Malaysian Journal of Chemistry, Vol. 9, 16-21, 2007.        Google Scholar

4. Jahia, M., Journal of Nonlinear Optical Physics & Maerialst, Vol. 19, 269-280, 2010.

5. Fichou, D., "Structural order in conjugated oligothiophenes and its implications on opto-electronic devices," Journal of Material Chemistry, Vol. 10, 571-588, 2000.
doi:10.1039/a908312j        Google Scholar

6. Bloisi, F., A. Cassinese, R. Papa, L. Vicari, and V. Califano, "Matrix-assisted pulsed laser evaporation of polythiophene films," Thin Solid Films, Vol. 516, 1594-1598, 2008.
doi:10.1016/j.tsf.2007.03.159        Google Scholar

7. Ma, X., G. Li, H. Xu, M. Wang, and H. Chen, "Preparation of polythiophene composite film by in situ polymerization at room temperature and its gas response studies," Thin Solid Films, Vol. 515, 2700-2704, 2006.
doi:10.1016/j.tsf.2006.07.081        Google Scholar

8. Zhao, X., "Synthesis characterization and structure dependence of thermochromism of polythiophene derivatives," Journal of Material Science, Vol. 40, 3423-3428, 2005.
doi:10.1007/s10853-005-2849-z        Google Scholar

9. Mazur, M., "Preparation of poly (3-methylthiophene) thin films by in situ polymerization," Thin Solid Films, Vol. 472, 1-4, 2005.
doi:10.1016/j.tsf.2004.05.094        Google Scholar

10. Yu Posudievskii, O., N. V. Konoshchuk, A. L. Kukla, A. S. Pavlyuchenko, G. V. Linyuchev, and V. D. Pokhodenko, "The effect of the nature of the dopant on the sensor response of poly (3-methylthiophene) films," Theoretical & Experimental Chemistry, Vol. 42, 339-345, 2006.
doi:10.1007/s11237-006-0063-y        Google Scholar

11. Stern, M. S., "Finite different analysis of planar optical waveguides," Progress In Electromagnetis Research, Vol. 10, 123-186, 1995.        Google Scholar

12. Watanabe, K. and K. Kuto, "Numerical analysis of optical waveguides based on periodic fourier transform," Progress In Electromagnetis Research, Vol. 64, 1-21, 2006.
doi:10.2528/PIER06060802        Google Scholar

13. Al-Hetar, A. M., A. B. Mohammad, A. S. M. Supa'at, Z. A. Shamsan, and I. Yulianti, "A new structure of MMI polymer thermo optic switch with a high refractive index contrast," Progress In Electromagnetics Research B, Vol. 24, 103-120, 2010.
doi:10.2528/PIERB10062202        Google Scholar

14. Patil, R. B., R. K. Puri, and V. Puri, "Effect of chopping on the properties of bismuth oxide thin films," Material Letters, Vol. 62, 198-201, 2008.
doi:10.1016/j.matlet.2007.04.102        Google Scholar

15. Abeles, F., "Note on the influence of the dispersion in the thin dielectric layer system," Journal of Physics of Radium, Vol. 19, 327-331, 1958.
doi:10.1051/jphysrad:01958001903032700        Google Scholar

16. Tamboli, S. H., R. B. Patil, S. V. Kamat, V. Puri, and R. K. Puri, "Modification of optical properties of MgO thin films by vapour chopping," Journal of Alloys and Compounds, Vol. 477, 855-859, 2009.
doi:10.1016/j.jallcom.2008.11.011        Google Scholar

17. Marani, A. D. and A. A. Entezami, "New synthesis method of polythiophenes," Iranian Journal of Polymer Science and Technology, Vol. 3, 2-12, 1994.        Google Scholar

18. Yadav, J. B., R. K. Puri, and V. Puri, "Improvement in mechanical and optical properties of vapour chopped vacuum evaporated PANI/PMMA composite thin films," Applied Surface Science, Vol. 254, 1382-1388, 2007.
doi:10.1016/j.apsusc.2007.06.052        Google Scholar

19. Gok, A., M. Omastova, and A. G. Yavuz, "Synthesis and characterization of polythiophenes prepared in presence of surfactants," Synthetic Metals, Vol. 157, 23-29, 2007.
doi:10.1016/j.synthmet.2006.11.012        Google Scholar

20. Bascarini, F., P. Samorf, A. Lauria, P. Ostoja, R. Zamboni, C. Taliani, P. Viville, R. Lazzaroni, and J. L. Bredas, "Morphology and roughness of high-vacuum sublimed oligomer thin films," Thin Solid Films, Vol. 284, 439-443, 1996.
doi:10.1016/S0040-6090(95)08361-8        Google Scholar

21. Nicho, M. E., H. Hu, C. Lopez Mata, and J. Escalante, "Synthesis of derivatives of polythiophene and their applications in an electromic device," Solar Energy Materials & Solar Cells, Vol. 82, 105-118, 2004.
doi:10.1016/j.solmat.2004.01.009        Google Scholar

22. Yadav, J. B., R. B Patil, R. K. Puri, and V. Puri, "Optical properties of the chopped and non-chopped vacuum evaporated polyaniline thin film," Journal of Non-Crystalline Solids, Vol. 353, 4691-4696, 2007.
doi:10.1016/j.jnoncrysol.2007.06.060        Google Scholar

23. Patil, P. V., R. K. Puri, and V. Puri, "Transmission loss decrease in thin film optical waveguide due to use of chopping technique and mixing by co-deposition," Journal of Optics, 27-33, 1998.        Google Scholar