Acta Phys. -Chim. Sin. ›› 2000, Vol. 16 ›› Issue (06): 563-567.doi: 10.3866/PKU.WHXB20000617

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Optical Properties of Melamine Formaldehyde Resin

Liu Hai-Bo, Hou Zhan-Jia, Liu Li-Ying, Xu Zhi-Ling, Xu Lei, Wang Wen-Cheng, Li Fu-Ming, Ye Ming-Xin   

  1. State Key Joint Laboratory for Materials Modification by Laser,Ion and Electron beams,Department of Physics|Department of Material Science,Fudan University,Shanghai 200433;Department of Material Science,Fudan University,Shanghai 200433
  • Received:1999-10-26 Revised:2000-01-11 Published:2000-06-15
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Abstract:

The synthesis process and the waveguide fabrication conditions of melamine formaldehyde resin (MF) were investigated. We found that melamine formaldehyde resin forms optical transparent films and possesses optical transparency easily under certain conditions. The transmission losses of waveguides fabricated were about 0.50 dB•cm-1 at 632.8 nm. The nonlinear optical properties of the melamine formaldehyde resin doped with disperse red 1(DR1) were also studied. The Melamine formaldehyde resin showed good resolvability with nonlinear molecules. The optimum precuring temperature was about 100℃and the optimum poling temperature was about 140℃for Dr1 doped formaldehyde resin. The second order nonlinear coefficient d33 was about 39 pm•V-1 for samples doped with DR1 for weight ratio about 5%.The sample also showed good thermal stability.

Key words: Melamine formaldehyde resin, Waveguides, Nonlinear, Thermal stability