Molecular orientation by two-photon absorption

H. Ishitobi; M. Maeda; Z. Sekkat; S. Kawata

doi:10.1117/12.611185

18 August 2005 Molecular orientation by two-photon absorption

H. Ishitobi, M. Maeda, Z. Sekkat, S. Kawata

Proceedings Volume 5935, Linear and Nonlinear Optics of Organic Materials V; 59350F (2005) https://doi.org/10.1117/12.611185
Event: Optics and Photonics 2005, 2005, San Diego, California, United States

Abstract

We demonstrate that two-photon induced molecular orientation of diarylethene (DE) in thin films of poly-methyl-methacrylate (PMMA) and multi-photon induced anisotropic bleaching of disperse red one (DR1). We confirmed that two-photon absorption was induced in DE by measuring the quadratic dependence of isomerization rate on excitation light power, and we observed two-photon photo-orientation of DE in dichroic absorbance. Disperse red one (DR1) was orientationally bleached in PMMA by polarized multi-photon excitation. Anisotropic refractive index changes result from the nonlinear photobleaching of DR1 was detected by a polarization confocal microscope, and bit-oriented data storage was demonstrated.

Citation Download Citation

H. Ishitobi, M. Maeda, Z. Sekkat, and S. Kawata "Molecular orientation by two-photon absorption", Proc. SPIE 5935, Linear and Nonlinear Optics of Organic Materials V, 59350F (18 August 2005); https://doi.org/10.1117/12.611185

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