Relationship between Terahertz and X-ray signals Generated from Laser-Induced Plasma on gas targets

Mun, Jungho; Park, Seong Hee; Yea, Kwon-hae; Jeong, Young Uk; Lee, Kitae; Lee, Yong Woo; Lee, Ji Young; Ahn, Pil Dong; Ho, Yong; Lee, Byung Cheol; Cha, Hyunju

doi:10.3938/jkps.56.275

Cited by 7 publications

(1 citation statement)

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“…Starodubstov et al [15] have also done extensive studies on the plasma based radiation generation. Mun et al [16], during the laser and gas interaction, established a relationship between the signals corresponding to the THz radiation and X-rays; they understood the THz radiation to be due to the coherent transition radiation. Nakajima [17] has reviewed the progress of laser driven electron beam and radiation sources and mentioned their various applications.…”

Section: Introductionmentioning

confidence: 99%

Strong Terahertz radiation generation via wakefield in collisional plasma

Malik

Singh

Kumar³

2020

Journal of Taibah University for Science

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The present calculations show that the application of an external magnetic field can generate additional component of the wakefield suitable for Terahertz (THz) radiation generation in a collisional plasma. Based on the approach of perturbation technique under quasi-static approximation, a study is made on the field of emitted radiation pulses from the wakefield when the super-Gaussian laser beams are used. The field of the radiation becomes stronger when stronger magnetic field is applied and the same is the case for the lasers of higher index.

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Section: Introductionmentioning

confidence: 99%

Strong Terahertz radiation generation via wakefield in collisional plasma

Malik

Singh

Kumar³

2020

Journal of Taibah University for Science

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Weakened influence of El Niño–Southern Oscillation on the zonal shift of the South Asian High after the early 1980s

Cen

Chen

et al. 2022

Intl Journal of Climatology

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Previous studies indicated that El Niño-Southern Oscillation (ENSO) significantly impacts the zonal shift of the South Asian High (SAH) in boreal summer. This analysis reveals that the influence of ENSO on the zonal shift of the SAH has experienced a significant interdecadal weakening around the early 1980s. Specifically, ENSO has a significant relation with the SAH's zonal shift before the early 1980s. However, after the early 1980s, the impact of the ENSO on the SAH is weak. We further examined the physical processes for the interdecadal change of the ENSO-SAH relation. It is indicated that interdecadal change of relationship between ENSO and SAH zonal shift is attributable to change in the connection between ENSO and Indian summer monsoon (ISM).Before the early 1980s, ENSO could exert significant impacts on the ISM and lead to significant condensational latent heating anomalies around the northern Indian Peninsula. The atmospheric heating anomalies around the northern Indian Peninsula trigger an atmospheric wave train extending eastward from North Africa toward the Iranian Plateau (IP), which further leads to changes in the zonal location of the SAH. Hence, the ENSO exerts significant impacts on the summer SAH zonal shift. By contrast, after the early 1980s, ENSO had a weak impact on the ISM and could not lead to apparent atmospheric heating anomalies over IP. As such, ENSO has a weak effect on the SAH zonal shift. Further analysis indicates that interannual variation of the SAH zonal shift is related to an atmospheric wave train over mid-high latitudes of Eurasia after the early 1980s.

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