Study of backward terahertz radiation from intense picosecond laser-solid interactions using a multichannel calorimeter system

H. Liu; G. Q. Liao; Y. H. Zhang; B. J. Zhu; Z. Zhang; Y. T. Li; G. G. Scott; D. Rusby; C. Armstrong; E. Zemaityte; P. Bradford; N. Woolsey; P. Huggard; P. McKenna; D. Neely

doi:10.1017/hpl.2018.60

Study of backward terahertz radiation from intense picosecond laser-solid interactions using a multichannel calorimeter system

H. Liu, G. Q. Liao, Y. H. Zhang, B. J. Zhu, Z. Zhang, Y. T. Li, G. G. Scott, D. Rusby, C. Armstrong, E. Zemaityte, P. Bradford, N. Woolsey, P. Huggard, P. McKenna, D. Neely^*

^*Corresponding author for this work

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

Abstract

A multichannel calorimeter system is designed and constructed which is capable of delivering single-shot and broad-band spectral measurement of terahertz (THz) radiation generated in intense laser-plasma interactions. The generation mechanism of backward THz radiation (BTR) is studied by using the multichannel calorimeter system in an intense picosecond laser-solid interaction experiment. The dependence of the BTR energy and spectrum on laser energy, target thickness and pre-plasma scale length is obtained. These results indicate that coherent transition radiation is responsible for the low-frequency component (<![CDATA[${ 1 THz) of BTR. It is also observed that a large-scale pre-plasma primarily enhances the high-frequency component (}$]]> 3 THz) of BTR.

Original language	English
Number of pages	7
Journal	High Power Laser Science and Engineering
Volume	7
Early online date	22 Jan 2019
DOIs	https://doi.org/10.1017/hpl.2018.60
Publication status	E-pub ahead of print - 22 Jan 2019

Bibliographical note

Keywords

backward terahertz radiation
generation mechanisms
multichannel calorimeter

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10.1017/hpl.2018.60

study_of_backward_terahertz_radiation_from_intense_picosecond_lasersolid_interactions_using_a_multichannel_calorimeter_system
© The Author(s) 2019.
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Liu, H., Liao, G. Q., Zhang, Y. H., Zhu, B. J., Zhang, Z., Li, Y. T., Scott, G. G., Rusby, D., Armstrong, C., Zemaityte, E., Bradford, P., Woolsey, N., Huggard, P., McKenna, P., & Neely, D. (2019). Study of backward terahertz radiation from intense picosecond laser-solid interactions using a multichannel calorimeter system. High Power Laser Science and Engineering, 7. Advance online publication. https://doi.org/10.1017/hpl.2018.60

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title = "Study of backward terahertz radiation from intense picosecond laser-solid interactions using a multichannel calorimeter system",

abstract = "A multichannel calorimeter system is designed and constructed which is capable of delivering single-shot and broad-band spectral measurement of terahertz (THz) radiation generated in intense laser-plasma interactions. The generation mechanism of backward THz radiation (BTR) is studied by using the multichannel calorimeter system in an intense picosecond laser-solid interaction experiment. The dependence of the BTR energy and spectrum on laser energy, target thickness and pre-plasma scale length is obtained. These results indicate that coherent transition radiation is responsible for the low-frequency component (<![CDATA[${ 1 THz) of BTR. It is also observed that a large-scale pre-plasma primarily enhances the high-frequency component (}$]]> 3 THz) of BTR.",

keywords = "backward terahertz radiation, generation mechanisms, multichannel calorimeter",

author = "H. Liu and Liao, {G. Q.} and Zhang, {Y. H.} and Zhu, {B. J.} and Z. Zhang and Li, {Y. T.} and Scott, {G. G.} and D. Rusby and C. Armstrong and E. Zemaityte and P. Bradford and N. Woolsey and P. Huggard and P. McKenna and D. Neely",

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year = "2019",

month = jan,

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doi = "10.1017/hpl.2018.60",

language = "English",

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Liu, H, Liao, GQ, Zhang, YH, Zhu, BJ, Zhang, Z, Li, YT, Scott, GG, Rusby, D, Armstrong, C, Zemaityte, E, Bradford, P , Woolsey, N, Huggard, P, McKenna, P & Neely, D 2019, 'Study of backward terahertz radiation from intense picosecond laser-solid interactions using a multichannel calorimeter system', High Power Laser Science and Engineering, vol. 7. https://doi.org/10.1017/hpl.2018.60

TY - JOUR

T1 - Study of backward terahertz radiation from intense picosecond laser-solid interactions using a multichannel calorimeter system

AU - Liu, H.

AU - Liao, G. Q.

AU - Zhang, Y. H.

AU - Zhu, B. J.

AU - Zhang, Z.

AU - Li, Y. T.

AU - Scott, G. G.

AU - Rusby, D.

AU - Armstrong, C.

AU - Zemaityte, E.

AU - Bradford, P.

AU - Woolsey, N.

AU - Huggard, P.

AU - McKenna, P.

AU - Neely, D.

PY - 2019/1/22

Y1 - 2019/1/22

N2 - A multichannel calorimeter system is designed and constructed which is capable of delivering single-shot and broad-band spectral measurement of terahertz (THz) radiation generated in intense laser-plasma interactions. The generation mechanism of backward THz radiation (BTR) is studied by using the multichannel calorimeter system in an intense picosecond laser-solid interaction experiment. The dependence of the BTR energy and spectrum on laser energy, target thickness and pre-plasma scale length is obtained. These results indicate that coherent transition radiation is responsible for the low-frequency component (<![CDATA[${ 1 THz) of BTR. It is also observed that a large-scale pre-plasma primarily enhances the high-frequency component (}$]]> 3 THz) of BTR.

AB - A multichannel calorimeter system is designed and constructed which is capable of delivering single-shot and broad-band spectral measurement of terahertz (THz) radiation generated in intense laser-plasma interactions. The generation mechanism of backward THz radiation (BTR) is studied by using the multichannel calorimeter system in an intense picosecond laser-solid interaction experiment. The dependence of the BTR energy and spectrum on laser energy, target thickness and pre-plasma scale length is obtained. These results indicate that coherent transition radiation is responsible for the low-frequency component (<![CDATA[${ 1 THz) of BTR. It is also observed that a large-scale pre-plasma primarily enhances the high-frequency component (}$]]> 3 THz) of BTR.

KW - backward terahertz radiation

KW - generation mechanisms

KW - multichannel calorimeter

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DO - 10.1017/hpl.2018.60

M3 - Article

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SN - 2095-4719

VL - 7

JO - High Power Laser Science and Engineering

JF - High Power Laser Science and Engineering

ER -

Study of backward terahertz radiation from intense picosecond laser-solid interactions using a multichannel calorimeter system

Abstract

Bibliographical note

Keywords

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