Theoretical and experimental study of a terahertz time-domain spectrometer based on photoconductive antenna

Jitao Zhang; Wei Ren Ng; Minguang Tuo; Min Liang; D. R. Golish; M. E. Gehm; Hao Xin

doi:10.1109/USNC-URSI-NRSM.2014.6927955

Theoretical and experimental study of a terahertz time-domain spectrometer based on photoconductive antenna

Jitao Zhang, Wei Ren Ng, Minguang Tuo, Min Liang, D. R. Golish, M. E. Gehm, Hao Xin

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

2 Scopus citations

Abstract

We construct a terahertz time-domain spectrometer (THz-TDS) system based on photoconductive antenna (PCA). A 800 nm Ti:sapphire femtosecond laser with 80 MHz repetition rate provides the pump and probe laser pulse, which has a 45 fs pulse width (as short as 15 fs is available) and as much as 400 mW power. Two commercial PCAs with 34 um and 6 um gap size are used as the emitter and receiver, respectively. We characterize this system by measuring its absolute radiated THz power, spectral bandwidth, signal-to-noise ratio (SNR) and dynamic range. Using this system, we study the response of the PCA as the emitter and receiver to the laser power and/or biased DC voltage, as well as their influences on the SNR and dynamic range of the TDS system.

Original language	English (US)
Title of host publication	2014 United States National Committee of URSI National Radio Science Meeting, USNC-URSI NRSM 2014
Publisher	Institute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)	9781479931200
DOIs	https://doi.org/10.1109/USNC-URSI-NRSM.2014.6927955
State	Published - Oct 16 2014
Event	2014 United States National Committee of URSI National Radio Science Meeting, USNC-URSI NRSM 2014 - Boulder, United States Duration: Jan 8 2014 → Jan 11 2014

Publication series

Name	2014 United States National Committee of URSI National Radio Science Meeting, USNC-URSI NRSM 2014

Other

Other	2014 United States National Committee of URSI National Radio Science Meeting, USNC-URSI NRSM 2014
Country/Territory	United States
City	Boulder
Period	1/8/14 → 1/11/14

ASJC Scopus subject areas

Electrical and Electronic Engineering
Electronic, Optical and Magnetic Materials

Access to Document

10.1109/USNC-URSI-NRSM.2014.6927955

Cite this

Zhang, J., Ng, W. R., Tuo, M., Liang, M., Golish, D. R., Gehm, M. E., & Xin, H. (2014). Theoretical and experimental study of a terahertz time-domain spectrometer based on photoconductive antenna. In 2014 United States National Committee of URSI National Radio Science Meeting, USNC-URSI NRSM 2014 Article 6927955 (2014 United States National Committee of URSI National Radio Science Meeting, USNC-URSI NRSM 2014). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/USNC-URSI-NRSM.2014.6927955

Theoretical and experimental study of a terahertz time-domain spectrometer based on photoconductive antenna. / Zhang, Jitao; Ng, Wei Ren; Tuo, Minguang et al.
2014 United States National Committee of URSI National Radio Science Meeting, USNC-URSI NRSM 2014. Institute of Electrical and Electronics Engineers Inc., 2014. 6927955 (2014 United States National Committee of URSI National Radio Science Meeting, USNC-URSI NRSM 2014).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Zhang, J, Ng, WR, Tuo, M, Liang, M, Golish, DR, Gehm, ME & Xin, H 2014, Theoretical and experimental study of a terahertz time-domain spectrometer based on photoconductive antenna. in 2014 United States National Committee of URSI National Radio Science Meeting, USNC-URSI NRSM 2014., 6927955, 2014 United States National Committee of URSI National Radio Science Meeting, USNC-URSI NRSM 2014, Institute of Electrical and Electronics Engineers Inc., 2014 United States National Committee of URSI National Radio Science Meeting, USNC-URSI NRSM 2014, Boulder, United States, 1/8/14. https://doi.org/10.1109/USNC-URSI-NRSM.2014.6927955

Zhang J, Ng WR, Tuo M, Liang M, Golish DR, Gehm ME et al. Theoretical and experimental study of a terahertz time-domain spectrometer based on photoconductive antenna. In 2014 United States National Committee of URSI National Radio Science Meeting, USNC-URSI NRSM 2014. Institute of Electrical and Electronics Engineers Inc. 2014. 6927955. (2014 United States National Committee of URSI National Radio Science Meeting, USNC-URSI NRSM 2014). doi: 10.1109/USNC-URSI-NRSM.2014.6927955

Zhang, Jitao ; Ng, Wei Ren ; Tuo, Minguang et al. / Theoretical and experimental study of a terahertz time-domain spectrometer based on photoconductive antenna. 2014 United States National Committee of URSI National Radio Science Meeting, USNC-URSI NRSM 2014. Institute of Electrical and Electronics Engineers Inc., 2014. (2014 United States National Committee of URSI National Radio Science Meeting, USNC-URSI NRSM 2014).

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abstract = "We construct a terahertz time-domain spectrometer (THz-TDS) system based on photoconductive antenna (PCA). A 800 nm Ti:sapphire femtosecond laser with 80 MHz repetition rate provides the pump and probe laser pulse, which has a 45 fs pulse width (as short as 15 fs is available) and as much as 400 mW power. Two commercial PCAs with 34 um and 6 um gap size are used as the emitter and receiver, respectively. We characterize this system by measuring its absolute radiated THz power, spectral bandwidth, signal-to-noise ratio (SNR) and dynamic range. Using this system, we study the response of the PCA as the emitter and receiver to the laser power and/or biased DC voltage, as well as their influences on the SNR and dynamic range of the TDS system.",

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AU - Zhang, Jitao

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AU - Gehm, M. E.

AU - Xin, Hao

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N2 - We construct a terahertz time-domain spectrometer (THz-TDS) system based on photoconductive antenna (PCA). A 800 nm Ti:sapphire femtosecond laser with 80 MHz repetition rate provides the pump and probe laser pulse, which has a 45 fs pulse width (as short as 15 fs is available) and as much as 400 mW power. Two commercial PCAs with 34 um and 6 um gap size are used as the emitter and receiver, respectively. We characterize this system by measuring its absolute radiated THz power, spectral bandwidth, signal-to-noise ratio (SNR) and dynamic range. Using this system, we study the response of the PCA as the emitter and receiver to the laser power and/or biased DC voltage, as well as their influences on the SNR and dynamic range of the TDS system.

AB - We construct a terahertz time-domain spectrometer (THz-TDS) system based on photoconductive antenna (PCA). A 800 nm Ti:sapphire femtosecond laser with 80 MHz repetition rate provides the pump and probe laser pulse, which has a 45 fs pulse width (as short as 15 fs is available) and as much as 400 mW power. Two commercial PCAs with 34 um and 6 um gap size are used as the emitter and receiver, respectively. We characterize this system by measuring its absolute radiated THz power, spectral bandwidth, signal-to-noise ratio (SNR) and dynamic range. Using this system, we study the response of the PCA as the emitter and receiver to the laser power and/or biased DC voltage, as well as their influences on the SNR and dynamic range of the TDS system.

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Theoretical and experimental study of a terahertz time-domain spectrometer based on photoconductive antenna

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