THz Generation From GaP Rod-Type Waveguides

Terahertz (THz) generation was demonstrated from GaP rod-type waveguides via difference-frequency-mixing of near-infrared light using a collinear phase-matching condition. THz output peaks were observed, and appeared at frequencies corresponding to the fundamental and high-order waveguide modes. Int...

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Bibliographic Details
Published inIEEE photonics technology letters Vol. 19; no. 3; pp. 143 - 145
Main Authors Nishizawa, J., Suto, K., Tanabe, T., Saito, K., Kimura, T., Oyama, Y.
Format Journal Article
LanguageEnglish
Published New York IEEE 01.02.2007
The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subjects
Biomedical optical imaging
Collinear phase matching
Confinement
Conversion
Cross sections
Crystals
Design for manufacture
Electromagnetic waveguides
Frequency conversion
GaP
Laser excitation
Nonlinear optics
Optical frequency conversion
optical waveguide
Optical waveguides
phonon-polariton
Photonics
terahertz (THz)-wave
Waveguide discontinuities
Waveguides
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Summary:Terahertz (THz) generation was demonstrated from GaP rod-type waveguides via difference-frequency-mixing of near-infrared light using a collinear phase-matching condition. THz output peaks were observed, and appeared at frequencies corresponding to the fundamental and high-order waveguide modes. Interestingly, the position of the fundamental mode shifted to a higher frequency for a smaller waveguide cross-section, which is attributed to the waveguide confinement of the THz wave. The conversion efficiency was enhanced in the waveguide with a cross section of 200 mumtimes160 mum as compared to that in bulk GaP crystals
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
ISSN:1041-1135
1941-0174
DOI:10.1109/LPT.2006.890098