Self-phase modulation at visible wavelengths in nonlinear ZnO channel waveguides

Edgar Yoshio Morales Teraoka, Daniel H. Broaddus, Tomohiro Kita, Atsushi Tsukazaki, Masashi Kawasaki, Alexander L. Gaeta, Hirohito Yamada

Research output: Contribution to journalArticle

13 Citations (Scopus)

Abstract

We report the observation of nonlinear optical effects in the visible spectrum using ZnO channel waveguides. We demonstrate sixfold spectral broadening and a 2π phase shift due to self-phase modulation in ZnO channel waveguides using femtosecond optical pulses with a center wavelength of 840 nm. We measured a value for the nonlinear parameter γ of 13.9±3.0 W-1 m-1, which is more than 1300 times that of a highly nonlinear fiber. The calculated intensity-dependent refractive index is found to be consistent with previously reported values of bulk single-crystal ZnO.

Original languageEnglish
Article number071105
JournalApplied Physics Letters
Volume97
Issue number7
DOIs
Publication statusPublished - 2010 Aug 16
Externally publishedYes

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phase modulation
waveguides
visible spectrum
wavelengths
phase shift
refractivity
fibers
single crystals
pulses

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

Cite this

Teraoka, E. Y. M., Broaddus, D. H., Kita, T., Tsukazaki, A., Kawasaki, M., Gaeta, A. L., & Yamada, H. (2010). Self-phase modulation at visible wavelengths in nonlinear ZnO channel waveguides. Applied Physics Letters, 97(7), [071105]. https://doi.org/10.1063/1.3480422

Self-phase modulation at visible wavelengths in nonlinear ZnO channel waveguides. / Teraoka, Edgar Yoshio Morales; Broaddus, Daniel H.; Kita, Tomohiro; Tsukazaki, Atsushi; Kawasaki, Masashi; Gaeta, Alexander L.; Yamada, Hirohito.

In: Applied Physics Letters, Vol. 97, No. 7, 071105, 16.08.2010.

Research output: Contribution to journalArticle

Teraoka, EYM, Broaddus, DH, Kita, T, Tsukazaki, A, Kawasaki, M, Gaeta, AL & Yamada, H 2010, 'Self-phase modulation at visible wavelengths in nonlinear ZnO channel waveguides', Applied Physics Letters, vol. 97, no. 7, 071105. https://doi.org/10.1063/1.3480422
Teraoka EYM, Broaddus DH, Kita T, Tsukazaki A, Kawasaki M, Gaeta AL et al. Self-phase modulation at visible wavelengths in nonlinear ZnO channel waveguides. Applied Physics Letters. 2010 Aug 16;97(7). 071105. https://doi.org/10.1063/1.3480422
Teraoka, Edgar Yoshio Morales ; Broaddus, Daniel H. ; Kita, Tomohiro ; Tsukazaki, Atsushi ; Kawasaki, Masashi ; Gaeta, Alexander L. ; Yamada, Hirohito. / Self-phase modulation at visible wavelengths in nonlinear ZnO channel waveguides. In: Applied Physics Letters. 2010 ; Vol. 97, No. 7.
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