By the same authors

From the same journal

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

Research output: Contribution to journalArticle

Author(s)

  • 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

Department/unit(s)

Publication details

JournalHigh Power Laser Science and Engineering
DateAccepted/In press - 13 Nov 2018
DateE-pub ahead of print (current) - 22 Jan 2019
Volume7
Number of pages7
Early online date22/01/19
Original languageEnglish

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.

Bibliographical note

© The Author(s) 2019.

    Research areas

  • backward terahertz radiation, generation mechanisms, multichannel calorimeter

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