Resonance enhancement of two-photon absorption of phthalocyanines for 3D optical storage in the presence of hot-band absorption

Nikolay Makarov; Mikhail Drobizhev; Aleksander Rebane; Desiree Peone; Heinz Wolleb; Heinz Spahni; Elena A. Makarova; Evgeny A. Lukyanets

doi:10.1117/12.696970

8 February 2007 Resonance enhancement of two-photon absorption of phthalocyanines for 3D optical storage in the presence of hot-band absorption

Nikolay Makarov, Mikhail Drobizhev, Aleksander Rebane, Desiree Peone, Heinz Wolleb, Heinz Spahni, Elena A. Makarova, Evgeny A. Lukyanets

Author Affiliations +

Proceedings Volume 6470, Organic Photonic Materials and Devices IX; 64700R (2007) https://doi.org/10.1117/12.696970
Event: Integrated Optoelectronic Devices 2007, 2007, San Jose, California, United States

Abstract

We study a new series of asymmetrical phthalocyanines with promising properties for two-photon 3D optical memory. The chromophores have a strong and narrow one-photon absorption (1PA) S₀ -> S₁ band at 730-760 nm, with a 200-400 cm^-1 width. Tuning the laser frequency 500-1000 cm^-1 below the S₀ -> S₁ band allows for very high values of two-photon absorption (2PA) cross-section &sgr;2 > 10⁴ GM. At temperatures T < 110K the molecules can be switched between two tautomer forms by 2PA. We measure 2PA spectra as a function of frequency and sample temperature. We provide an analysis of changes in 2PA spectra and cross sections due to different substituent groups. As a result, we found that among the set of studied molecules, there is one which is the most promising for rewritable 3D optical memory.

Citation Download Citation

Nikolay Makarov, Mikhail Drobizhev, Aleksander Rebane, Desiree Peone, Heinz Wolleb, Heinz Spahni, Elena A. Makarova, and Evgeny A. Lukyanets "Resonance enhancement of two-photon absorption of phthalocyanines for 3D optical storage in the presence of hot-band absorption", Proc. SPIE 6470, Organic Photonic Materials and Devices IX, 64700R (8 February 2007); https://doi.org/10.1117/12.696970

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