ABSTRACT This paper demonstrates for fabricating the biopolymric optical planar waveguide. Gelatin and chitosan were mixed with ratio of 9 to 1 and stirred at 70°C with 1300 rpm. The blended biopolymer was spincoated on silicon substrate with 500 rpm and then dried in the oven at 50°C. The refractive indices of the prepared biopolymer clad and core layers of the waveguide were measured by the ellipsometry. The measured refractive indices of the two layers were obtained to be 1.516 and 1.52, respectively. The nanograting was successfully imprinted on surface of the biopolymeric waveguide.
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nullS. Yoon, W. Jeong, K. Kim, K. Kim, M. Oh and S. Lee, "Development of the Biopolymeric Optical Planar Waveguide with Nanopattern," Journal of Surface Engineered Materials and Advanced Technology, Vol. 1 No. 2, 2011, pp. 56-61. doi: 10.4236/jsemat.2011.12009.
 K. C. Basavaraju, T. Damappa and S. K. Rai, “Preparation of Chitosan and Its Miscibility Studies with Gelatin Using Viscosity, Ultrasonic And Refractive Index,” Carbohydrate Polymers, Vol. 66, No. 3, 2006, pp. 357-362. doi:10.1016/j.carbpol.2006.03.020
 W. Ding, Q. Lian, R. J. Samuels and M. B. Polk, “Synthesis and Characterization of a Novel Derivative of Chitosan,” Polymer, Vol. 44, No. 3, 2003, pp. 547-556. doi:10.1016/S0032-3861(02)00834-0
 J. C. Martinez-Anton and E. Bernabeu, “Spectrogoniometry and the WANTED Method for Thickness and Refractive Index Determination,” Thin Solid Film, Vol. 313, 1998, pp. 85-89. doi:10.1016/S0040-6090(97)00775-X
 H. Jiang, W. Su, S. Caracci, T. I. Bunning, T. Cooper, and W. W. Adams, “Optical Waveguiding and Morphology of Chitosan Thin Films,” Journal of Applied Polymer Science, Vol. 61, No. 7, 1996, pp. 1163-1171. doi:10.1002/(SICI)1097-4628(19960815)61:7<1163::AID-APP12>3.0.CO;2-Z
 K.C. Basavaraju, T. Damappa and S. K. Rai,; “Preparation of Chitosan and Its Miscibility Studies with Gelatin Using Viscosity, Ultrasonic and Refractive Index,” Carbohydrate Polymers, Vol. 66, No. 3, 2006, pp. 357-362. doi:10.1016/j.carbpol.2006.03.020
 A. Yariv, “Coupled-Mode Theory for Guided-Wave Optics,” IEEE Journal of Quantum Electronics, Vol. 9, No. 9, 1973, pp. 919-933. doi:10.1109/JQE.1973.1077767