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Nonlinear Mixing in Nanowire Subwavelength Waveguides

Authors
Barrelet, Carl J.Ee, Ho-SeokKwon, Soon-HongPark, Hong-Gyu
Issue Date
7월-2011
Publisher
AMER CHEMICAL SOC
Keywords
Semiconductor nanowires; subwavelength waveguides; second harmonic generation; optical parametric generation; all-optical switching
Citation
NANO LETTERS, v.11, no.7, pp.3022 - 3025
Indexed
SCIE
SCOPUS
Journal Title
NANO LETTERS
Volume
11
Number
7
Start Page
3022
End Page
3025
URI
https://scholar.korea.ac.kr/handle/2021.sw.korea/112158
DOI
10.1021/nl201743x
ISSN
1530-6984
Abstract
The realization of nonlinear photonic circuits to achieve the control of light-by-light is contingent upon a strong nonlinear response that can be captured in a guided-wave geometry. There remains a need to further scale down waveguides while maintaining a strong nonlinear response. In this study, we report second-harmonic generation and optical parametric generation using the second-order nonlinear response in an 80 nm thick CdS nanowire subwavelength waveguide. Moreover, our three-dimensional finite-difference time-domain (FDTD) simulations demonstrate that it is possible to enhance the coherence length due to the very nature of the subwavelength geometry. Nonlinear mixing in a nanowire subwavelength waveguide represents an advance toward all-optical processing and all-optical switching in integrated photonic circuits.
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