Second-order nonlinearity of nonpoled polymeric thin films doped with pyrylium salts with blue window characteristics

Hideki Nakayama; Ryoka Matsushima; Naomichi Okamoto; Atsushi Mizuno; Okihiro Sugihara; Chikara Egami

doi:10.1063/1.116852

Second-order nonlinearity of nonpoled polymeric thin films doped with pyrylium salts with blue window characteristics

Hideki Nakayama, Ryoka Matsushima, Naomichi Okamoto, Atsushi Mizuno, Okihiro Sugihara, Chikara Egami

Institute of Multidisciplinary Research for Advanced Materials (IMRAM)

Research output: Contribution to journal › Article › peer-review

6 Citations (Scopus)

Abstract

A novel nonlinear organic ionic material, or pyrylium salt dye, is synthesized and doped in the polymer matrix. These guest-host-type polymer films, which have no absorption in the blue-wavelength region, have second harmonic generation (SHG) activities without the electric-field poling process. The nonlinear optical coefficient d₃₃ is estimated as 1.10 pm/V at a 15 wt % of dye concentration. The nonlinearity is stable at room temperature and at 120°C. The SHG device is fabricated using the nonpoled polymer film, and Cerenkov-type phase-matched SHG is observed.

Original language	English
Pages (from-to)	2813-2815
Number of pages	3
Journal	Applied Physics Letters
Volume	69
Issue number	19
DOIs	https://doi.org/10.1063/1.116852
Publication status	Published - 1996 Nov 4

ASJC Scopus subject areas

Physics and Astronomy (miscellaneous)

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abstract = "A novel nonlinear organic ionic material, or pyrylium salt dye, is synthesized and doped in the polymer matrix. These guest-host-type polymer films, which have no absorption in the blue-wavelength region, have second harmonic generation (SHG) activities without the electric-field poling process. The nonlinear optical coefficient d33 is estimated as 1.10 pm/V at a 15 wt % of dye concentration. The nonlinearity is stable at room temperature and at 120°C. The SHG device is fabricated using the nonpoled polymer film, and Cerenkov-type phase-matched SHG is observed.",

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AU - Nakayama, Hideki

AU - Matsushima, Ryoka

AU - Okamoto, Naomichi

AU - Mizuno, Atsushi

AU - Sugihara, Okihiro

AU - Egami, Chikara

PY - 1996/11/4

Y1 - 1996/11/4

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AB - A novel nonlinear organic ionic material, or pyrylium salt dye, is synthesized and doped in the polymer matrix. These guest-host-type polymer films, which have no absorption in the blue-wavelength region, have second harmonic generation (SHG) activities without the electric-field poling process. The nonlinear optical coefficient d33 is estimated as 1.10 pm/V at a 15 wt % of dye concentration. The nonlinearity is stable at room temperature and at 120°C. The SHG device is fabricated using the nonpoled polymer film, and Cerenkov-type phase-matched SHG is observed.

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