Polarization Dependence of Polymer Surface Relief Gratings

We report the polarization dependence of surface relief grating (SRGs) based on azo dye-poly(methyl methacylate). The S-polarized and P-polarized writing beams were introduced into the sample and fabricated the surface relief gratings (SRGs). The He-Ne laser with S-polarization or P-polarization was served as a probe beam and measured the first order diffraction of SRGs. The results showed that the diffraction efficiency was highly correlated with the polarization of writng beams. The atomic force microscopy was employed to observe the morphology of SRGs, and the depths of SRGs can be obtained a relative high value for the P-polarization of writing beams.[Ying-Chuan Wang. Polarization Dependence of Polymer Surface Relief Gratings. Life Sci J. 2012; 9(3): 1255-1257] (ISSN: 1097-8135). http://www.lifesciencesite.com.