Pulsed holographic gratings in azo-polymethacrylates with different molecular architectures

Patricia Forcén; Carlos Sánchez; Francisco J. Rodríguez; Rafael Alcalá; Luis T. Oriol; Soeren Hvilsted; Katja Jankova; Joachim Loos

doi:10.1117/12.699913

20 February 2007 Pulsed holographic gratings in azo-polymethacrylates with different molecular architectures

Patricia Forcén, Carlos Sánchez, Francisco J. Rodríguez, Rafael Alcalá, Luis T. Oriol, Soeren Hvilsted, Katja Jankova, Joachim Loos

Author Affiliations +

Proceedings Volume 6488, Practical Holography XXI: Materials and Applications; 648807 (2007) https://doi.org/10.1117/12.699913
Event: Integrated Optoelectronic Devices 2007, 2007, San Jose, California, United States

Abstract

Holographic pulsed light induced recording in azobenzene polymers is being extensively studied due to its potential use in optical storage applications. In this communication we show our studies in the formation of holographic grating recording in different azobenzene side chain polymethacrylates irradiating with a single 4 ns light pulse at 532 nm. Holographic gratings have been registered using intensity and polarization patterns. The time response and stability of this diffraction efficiency have been studied as a function of the recording energy. Stable values of the diffraction efficiency have been obtained in some of the polymers after one single pulse of several tenths of mJ/cm². We have also estimated the relevance of surface and phase contributions at different recording energy regimes. Polarization holographic gratings with efficiencies of about 0.8% (measured at 632.8 nm) have been registered with no measurable relief contribution.

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Patricia Forcén, Carlos Sánchez, Francisco J. Rodríguez, Rafael Alcalá, Luis T. Oriol, Soeren Hvilsted, Katja Jankova, and Joachim Loos "Pulsed holographic gratings in azo-polymethacrylates with different molecular architectures", Proc. SPIE 6488, Practical Holography XXI: Materials and Applications, 648807 (20 February 2007); https://doi.org/10.1117/12.699913

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