Organic crystal isopropyl-4-acetylphenylurea and waveguide second-harmonic generation

H. Yamamoto, S. Funato, T. Sugiyama, J. Jung, Takeshi Kinoshita, K. Sasaki

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

A new organic crystal isopropyl-4-acetylphenylurea (IAPU) was identified as a promising candidate for blue second-harmonic generation (SHG). The nonlinear optical d coefficient obtained is d22 = 30.5 pm/V at the fundamental wavelength 1064 nm, and the crystal's transmitting range is 380-1400 nm. Thin, single crystalline films fabricated on the glass substrate are useful for waveguide-device applications. For the improvement of SHG efficiency and the relaxation of phase-matching conditions, the concept of thickness-noncritical phase matching (TNCPM) in a four-layer waveguide is proposed. Modal dispersion calculations for the various four-layer structures suggested the possibility of TNCPM from the TE0 ω mode to TE1 mode and from the TE0 ω mode to the TE2 mode by adjustment of the refractive indices of the two guiding layers.

Original languageEnglish
Pages (from-to)1099-1108
Number of pages10
JournalJournal of the Optical Society of America B: Optical Physics
Volume14
Issue number5
Publication statusPublished - 1997

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harmonic generations
phase matching
waveguides
crystals
adjusting
refractivity
glass
coefficients
wavelengths

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

Cite this

Organic crystal isopropyl-4-acetylphenylurea and waveguide second-harmonic generation. / Yamamoto, H.; Funato, S.; Sugiyama, T.; Jung, J.; Kinoshita, Takeshi; Sasaki, K.

In: Journal of the Optical Society of America B: Optical Physics, Vol. 14, No. 5, 1997, p. 1099-1108.

Research output: Contribution to journalArticle

Yamamoto, H. ; Funato, S. ; Sugiyama, T. ; Jung, J. ; Kinoshita, Takeshi ; Sasaki, K. / Organic crystal isopropyl-4-acetylphenylurea and waveguide second-harmonic generation. In: Journal of the Optical Society of America B: Optical Physics. 1997 ; Vol. 14, No. 5. pp. 1099-1108.
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AU - Sasaki, K.

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