Enhanced terahertz detection via ErAs:GaAs nanoisland superlattices

John F. O'Hara; J. M.O. Zide; A. C. Gossard; Antoinette Jane Taylor; R. D. Averitt

doi:10.1063/1.2216026

Enhanced terahertz detection via ErAs:GaAs nanoisland superlattices

John F. O'Hara
, J. M.O. Zide
, A. C. Gossard
, Antoinette Jane Taylor
, R. D. Averitt

Los Alamos National Laboratory

Research output: Contribution to journal › Article › peer-review

100 Scopus citations

Abstract

We demonstrate enhanced terahertz detection using photoconductive antennas based on self-assembled ErAs:GaAs nanoisland superlattices. Three detectors are compared; one each fabricated on low-temperature grown GaAs, radiation-damaged silicon-on-sapphire, and an ErAs:GaAs superlattice, The ErAs:GaAs based detector shows a strong enhancement in terahertz detection efficiency with respect to incident optical power, though optical saturation occurs more rapidly. Detected terahertz bandwidth and signal-to-noise ratios are simultaneously maintained or improved.

Original language	English
Article number	251119
Journal	Applied Physics Letters
Volume	88
Issue number	25
DOIs	https://doi.org/10.1063/1.2216026
State	Published - Jun 19 2006

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title = "Enhanced terahertz detection via ErAs:GaAs nanoisland superlattices",

abstract = "We demonstrate enhanced terahertz detection using photoconductive antennas based on self-assembled ErAs:GaAs nanoisland superlattices. Three detectors are compared; one each fabricated on low-temperature grown GaAs, radiation-damaged silicon-on-sapphire, and an ErAs:GaAs superlattice, The ErAs:GaAs based detector shows a strong enhancement in terahertz detection efficiency with respect to incident optical power, though optical saturation occurs more rapidly. Detected terahertz bandwidth and signal-to-noise ratios are simultaneously maintained or improved.",

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AU - O'Hara, John F.

AU - Zide, J. M.O.

AU - Gossard, A. C.

AU - Taylor, Antoinette Jane

AU - Averitt, R. D.

PY - 2006/6/19

Y1 - 2006/6/19

N2 - We demonstrate enhanced terahertz detection using photoconductive antennas based on self-assembled ErAs:GaAs nanoisland superlattices. Three detectors are compared; one each fabricated on low-temperature grown GaAs, radiation-damaged silicon-on-sapphire, and an ErAs:GaAs superlattice, The ErAs:GaAs based detector shows a strong enhancement in terahertz detection efficiency with respect to incident optical power, though optical saturation occurs more rapidly. Detected terahertz bandwidth and signal-to-noise ratios are simultaneously maintained or improved.

AB - We demonstrate enhanced terahertz detection using photoconductive antennas based on self-assembled ErAs:GaAs nanoisland superlattices. Three detectors are compared; one each fabricated on low-temperature grown GaAs, radiation-damaged silicon-on-sapphire, and an ErAs:GaAs superlattice, The ErAs:GaAs based detector shows a strong enhancement in terahertz detection efficiency with respect to incident optical power, though optical saturation occurs more rapidly. Detected terahertz bandwidth and signal-to-noise ratios are simultaneously maintained or improved.

UR - https://www.scopus.com/pages/publications/33745469530

U2 - 10.1063/1.2216026

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VL - 88

JO - Applied Physics Letters

JF - Applied Physics Letters

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M1 - 251119

ER -

Enhanced terahertz detection via ErAs:GaAs nanoisland superlattices

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