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Density grating

Pietsch, U., Rochon, P., Natansohn, A. (2000). Formation of a buried lateral density grating in azobenzene polymer films. Adv. Mater. 12, 1129-1132. [Pg.426]

Geue et al. investigated the thermal erasure of SRGs obtained via light-driven mass transport, at various temperatures, which allowed them to estimate the activation energy for erasure to be 2.6 eV. For erasing at T < Tg, the SRG was erased by flow of polymer material perpendicular to the initial surface, accompanied by the formation of an intrinsic density grating, as commented on in the work of reference 95. At T > Tg, the lateral density modulation was equalized by a lateral flow of material. [Pg.471]

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