Single GaAs/AlGaAs Nanowire Photoconductive Terahertz Detectors

Kun Peng; Patrick Parkinson; Lan Fu; Qiang Gao; Nian Jiang; Ya-Nan Guo; Fan Wang; Hannah J. Joyce; Jessica L. Boland; Michael B. Johnston; Hark Hoe Tan; Chennupati Jagadish

Single GaAs/AlGaAs Nanowire Photoconductive Terahertz Detectors

Kun Peng, Patrick Parkinson, Lan Fu, Qiang Gao, Nian Jiang, Ya-Nan Guo, Fan Wang, Hannah J. Joyce, Jessica L. Boland, Michael B. Johnston, Hark Hoe Tan, Chennupati Jagadish

Oxford University

Research output: Chapter in Book/Conference proceeding › Conference contribution › peer-review

Abstract

Photoconductive terahertz detectors based on single GaAs/AlGaAs core-shell nanowire have been designed and fabricated. The devices were characterised in a terahertz time-domain spectroscopy system, showing excellent sensitivity comparable to the standard bulk ion-implanted InP receiver, with a detection bandwidth of 0.1~ 0.6 THz. Finitedifference time-domain simulations were performed to understand the origin of the narrow bandwidth of current detectors as well as optimize antenna designs to improve detector performance.

Original language	English
Title of host publication	2014 Conference on Optoelectronic and Microelectronic Materials and Devices (COMMAD 2014)
Pages	221-222
Number of pages	2
Publication status	Published - 2014

Publication series

Name	Conference on Optoelectronic and Microelectronic Materials and Devices

Keywords

nanowires
nanophotonics
terahertz detectors
nanoscale devices

Cite this

Peng, K., Parkinson, P., Fu, L., Gao, Q., Jiang, N., Guo, Y.-N., Wang, F., Joyce, H. J., Boland, J. L., Johnston, M. B., Tan, H. H., & Jagadish, C. (2014). Single GaAs/AlGaAs Nanowire Photoconductive Terahertz Detectors. In 2014 Conference on Optoelectronic and Microelectronic Materials and Devices (COMMAD 2014) (pp. 221-222). (Conference on Optoelectronic and Microelectronic Materials and Devices).

@inproceedings{6e2d54ab59a1462b87fe0a4cf28a00e3,

title = "Single GaAs/AlGaAs Nanowire Photoconductive Terahertz Detectors",

abstract = "Photoconductive terahertz detectors based on single GaAs/AlGaAs core-shell nanowire have been designed and fabricated. The devices were characterised in a terahertz time-domain spectroscopy system, showing excellent sensitivity comparable to the standard bulk ion-implanted InP receiver, with a detection bandwidth of 0.1~ 0.6 THz. Finitedifference time-domain simulations were performed to understand the origin of the narrow bandwidth of current detectors as well as optimize antenna designs to improve detector performance.",

keywords = "nanowires, nanophotonics, terahertz detectors, nanoscale devices",

author = "Kun Peng and Patrick Parkinson and Lan Fu and Qiang Gao and Nian Jiang and Ya-Nan Guo and Fan Wang and Joyce, {Hannah J.} and Boland, {Jessica L.} and Johnston, {Michael B.} and Tan, {Hark Hoe} and Chennupati Jagadish",

year = "2014",

language = "English",

isbn = "978-1-4799-6868-8",

series = "Conference on Optoelectronic and Microelectronic Materials and Devices",

pages = "221--222",

booktitle = "2014 Conference on Optoelectronic and Microelectronic Materials and Devices (COMMAD 2014)",

}

Peng, K, Parkinson, P, Fu, L, Gao, Q, Jiang, N, Guo, Y-N, Wang, F, Joyce, HJ, Boland, JL, Johnston, MB, Tan, HH & Jagadish, C 2014, Single GaAs/AlGaAs Nanowire Photoconductive Terahertz Detectors. in 2014 Conference on Optoelectronic and Microelectronic Materials and Devices (COMMAD 2014). Conference on Optoelectronic and Microelectronic Materials and Devices, pp. 221-222.

Single GaAs/AlGaAs Nanowire Photoconductive Terahertz Detectors. / Peng, Kun; Parkinson, Patrick; Fu, Lan et al.
2014 Conference on Optoelectronic and Microelectronic Materials and Devices (COMMAD 2014). 2014. p. 221-222 (Conference on Optoelectronic and Microelectronic Materials and Devices).

Research output: Chapter in Book/Conference proceeding › Conference contribution › peer-review

TY - GEN

T1 - Single GaAs/AlGaAs Nanowire Photoconductive Terahertz Detectors

AU - Peng, Kun

AU - Parkinson, Patrick

AU - Fu, Lan

AU - Gao, Qiang

AU - Jiang, Nian

AU - Guo, Ya-Nan

AU - Wang, Fan

AU - Joyce, Hannah J.

AU - Boland, Jessica L.

AU - Johnston, Michael B.

AU - Tan, Hark Hoe

AU - Jagadish, Chennupati

PY - 2014

Y1 - 2014

N2 - Photoconductive terahertz detectors based on single GaAs/AlGaAs core-shell nanowire have been designed and fabricated. The devices were characterised in a terahertz time-domain spectroscopy system, showing excellent sensitivity comparable to the standard bulk ion-implanted InP receiver, with a detection bandwidth of 0.1~ 0.6 THz. Finitedifference time-domain simulations were performed to understand the origin of the narrow bandwidth of current detectors as well as optimize antenna designs to improve detector performance.

AB - Photoconductive terahertz detectors based on single GaAs/AlGaAs core-shell nanowire have been designed and fabricated. The devices were characterised in a terahertz time-domain spectroscopy system, showing excellent sensitivity comparable to the standard bulk ion-implanted InP receiver, with a detection bandwidth of 0.1~ 0.6 THz. Finitedifference time-domain simulations were performed to understand the origin of the narrow bandwidth of current detectors as well as optimize antenna designs to improve detector performance.

KW - nanowires

KW - nanophotonics

KW - terahertz detectors

KW - nanoscale devices

M3 - Conference contribution

SN - 978-1-4799-6868-8

T3 - Conference on Optoelectronic and Microelectronic Materials and Devices

SP - 221

EP - 222

BT - 2014 Conference on Optoelectronic and Microelectronic Materials and Devices (COMMAD 2014)

ER -

Single GaAs/AlGaAs Nanowire Photoconductive Terahertz Detectors

Abstract

Publication series

Keywords

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