Gratings optically-induced

Rochon, R, Batalla, E., Natansohn, A. (1995). Optically induced surface gratings on azo polymer films. AppL Phys. Lett. 66,136-138. 

Clien, J. P., Labarthet, F. L., Natansohn, A., Rochon, P. Highly stable optically induced birefringence and holographic surface gratings on a new azocarbazole-based polyimide. Macromolecules 1999, 32, pp. 8572-8579. 

Kim, D. Y., Kumar, J., and Tripathy, S. K. Liquid crystal alignment using optically induced surface relief gratings on azo polymer films. Polymer Preprints 1998, 319, pp. 1107-1108. 

Rochon P, Batalla E, Natansohn A. 1995. Optically induced surface gratings on azoaro matic pol5mer films. Appl Phys Lett 66(2) 136 138. 

Leblond, H., Barille, R., Ahamadi-kandjani, S., Nunzi, J.-M., Ortyl, E., Kucharski, S. Spontaneous formation of optically induced surface relief gratings. J. Phys. B Atom. Mol. Opt Phys. 42(20), 205401 (2009)... 

If the optically induced species alter the refractive index or absorbance of the sample, a phase or amplitude diffraction grating is produced. If a (non-perturbing) light beam is directed through the sample, a diffracted beam will be produced for each spatial frequency present. The intensity of each diffracted beam will be proportional to the amplitude of its particular Fourier component in the pattern, and each beam will decay exponentially with time. 

This hydrogen band at 3 = 0.2 was also studied with a diffraction grating spectrometer, and its optical density was found to be 0.1 and its half-width to be 21 cm.- (Fig. 10). Condon (134) showed that infrared spectra were expected to be induced by high electric ffelds and that the selection rules... 

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