Nonpoled polymeric films doped with blue-window pyrylium salt dyes for second-harmonic-generation devices

Hideki Nakayama; Okihiro Sugihara; Naomichi Okamoto; Hirohisa Saito; Atsushi Mizuno; Ryoka Matsushima

doi:10.1364/OTF.2001.OTuA3

Organic Thin Films
OSA Trends in Optics and Photonics (Optica Publishing Group, 2001),
paper OTuA3
•https://doi.org/10.1364/OTF.2001.OTuA3

Nonpoled polymeric films doped with blue-window pyrylium salt dyes for second-harmonic-generation devices

Hideki Nakayama, Okihiro Sugihara, Naomichi Okamoto, Hirohisa Saito, Atsushi Mizuno, and Ryoka Matsushima

Organic Thin Films 2001

Long Beach, California United States
ISBN: 1-55752-685-0

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Microfabrication and Waveguides (OTuA)

Open Access

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H. Nakayama, O. Sugihara, N. Okamoto, H. Saito, A. Mizuno, and R. Matsushima, "Nonpoled polymeric films doped with blue-window pyrylium salt dyes for second-harmonic-generation devices," in Organic Thin Films , J. Armistead, J. Heflin, A. Jen, and R. Norwood, eds., Vol. 64 of OSA Trends in Optics and Photonics (Optica Publishing Group, 2001), paper OTuA3.

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Abstract

We have prepared polymer films doped with novel nonlinear organic ionic materials, pyrylium salt dyes, and have investigated the second-order nonlinear optical properties of these guest?host-type polymer films by changing the counterion and alkyl group derivatives. These films have no absorption in the blue-light region and have second-harmonic-generation activity without electric-field poling. The second-order nonlinearity of the nonpoled-polymer film is constant, with no relaxation at room temperature or at high temperatures. We fabricated a second-harmonic-generation device with the nonpoled-polymer film and observedCerenkov-type phase-matched second-harmonic-generation of a Nd:YAG laser.

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