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

doi:10.1063/1.3480422

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 journal › Article › peer-review

21 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 language	English
Article number	071105
Journal	Applied Physics Letters
Volume	97
Issue number	7
DOIs	https://doi.org/10.1063/1.3480422
Publication status	Published - 2010 Aug 16

ASJC Scopus subject areas

Physics and Astronomy (miscellaneous)

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10.1063/1.3480422

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title = "Self-phase modulation at visible wavelengths in nonlinear ZnO channel waveguides",

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.",

author = "Teraoka, {Edgar Yoshio Morales} and Broaddus, {Daniel H.} and Tomohiro Kita and Atsushi Tsukazaki and Masashi Kawasaki and Gaeta, {Alexander L.} and Hirohito Yamada",

note = "Funding Information: This research was carried out at the Micro/Nano Research and Education Center at Tohoku University and the Center for Nanoscale Systems (CNS) at Cornell University, and financed by the Global COE program, Grants-in-Aid for Scientific Research (Grant Nos. 19201025 and 20760029) from the MEXT, the Core To Core program of the JSPS, and the National Science Foundation through the CNS under Grant No. EEC-0117770. ",

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T1 - Self-phase modulation at visible wavelengths in nonlinear ZnO channel waveguides

AU - Teraoka, Edgar Yoshio Morales

AU - Broaddus, Daniel H.

AU - Kita, Tomohiro

AU - Tsukazaki, Atsushi

AU - Kawasaki, Masashi

AU - Gaeta, Alexander L.

AU - Yamada, Hirohito

N1 - Funding Information: This research was carried out at the Micro/Nano Research and Education Center at Tohoku University and the Center for Nanoscale Systems (CNS) at Cornell University, and financed by the Global COE program, Grants-in-Aid for Scientific Research (Grant Nos. 19201025 and 20760029) from the MEXT, the Core To Core program of the JSPS, and the National Science Foundation through the CNS under Grant No. EEC-0117770.

PY - 2010/8/16

Y1 - 2010/8/16

N2 - 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.

AB - 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.

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

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