Soft X-ray emission from molybdenum plasmas generated by dual laser pulses

Ragava Lokasani; Goki Arai; Yoshiki Kondo; Hiroyuki Hara; Thanh Hung Dinh; Takeo Ejima; Tadashi Hatano; Weihua Jiang; Tetsuya Makimura; Bowen Li; Padraig Dunne; Gerry O'Sullivan; Takeshi Higashiguchi; Jiri Limpouch

doi:10.1063/1.4967310

Soft X-ray emission from molybdenum plasmas generated by dual laser pulses

Ragava Lokasani, Goki Arai, Yoshiki Kondo, Hiroyuki Hara, Thanh Hung Dinh, Takeo Ejima, Tadashi Hatano, Weihua Jiang, Tetsuya Makimura, Bowen Li, Padraig Dunne, Gerry O'Sullivan, Takeshi Higashiguchi, Jiri Limpouch

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

21 Citations (Scopus)

Abstract

We demonstrate efficient enhancement of soft X-ray (SXR) emission from molybdenum plasmas produced using dual pulse irradiation, in which 10-ns and 150-ps pre-pulses were followed by a 150-ps main pulse. The number of photons was observed to be 5.3 × 10¹⁶ photons/sr, which corresponded to a conversion efficiency of 1.5%/sr in λ = 2.34-4.38 nm region at a pulse separation time of 1 ns with the 150-ps pre-pulse. The conversion efficiency became 1.3 times as large as that produced by a single pulse. The results indicate the advantage of dual pulse irradiation using sub-ns pre-and main pulses to produce the bright plasmas required for applications such as laboratory based SXR microscopy.

Original language	English
Article number	194103
Journal	Applied Physics Letters
Volume	109
Issue number	19
DOIs	https://doi.org/10.1063/1.4967310
Publication status	Published - 2016 Nov 7

ASJC Scopus subject areas

Physics and Astronomy (miscellaneous)

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10.1063/1.4967310

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title = "Soft X-ray emission from molybdenum plasmas generated by dual laser pulses",

abstract = "We demonstrate efficient enhancement of soft X-ray (SXR) emission from molybdenum plasmas produced using dual pulse irradiation, in which 10-ns and 150-ps pre-pulses were followed by a 150-ps main pulse. The number of photons was observed to be 5.3 × 1016 photons/sr, which corresponded to a conversion efficiency of 1.5%/sr in λ = 2.34-4.38 nm region at a pulse separation time of 1 ns with the 150-ps pre-pulse. The conversion efficiency became 1.3 times as large as that produced by a single pulse. The results indicate the advantage of dual pulse irradiation using sub-ns pre-and main pulses to produce the bright plasmas required for applications such as laboratory based SXR microscopy.",

author = "Ragava Lokasani and Goki Arai and Yoshiki Kondo and Hiroyuki Hara and Dinh, {Thanh Hung} and Takeo Ejima and Tadashi Hatano and Weihua Jiang and Tetsuya Makimura and Bowen Li and Padraig Dunne and Gerry O'Sullivan and Takeshi Higashiguchi and Jiri Limpouch",

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doi = "10.1063/1.4967310",

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T1 - Soft X-ray emission from molybdenum plasmas generated by dual laser pulses

AU - Lokasani, Ragava

AU - Arai, Goki

AU - Kondo, Yoshiki

AU - Hara, Hiroyuki

AU - Dinh, Thanh Hung

AU - Ejima, Takeo

AU - Hatano, Tadashi

AU - Jiang, Weihua

AU - Makimura, Tetsuya

AU - Li, Bowen

AU - Dunne, Padraig

AU - O'Sullivan, Gerry

AU - Higashiguchi, Takeshi

AU - Limpouch, Jiri

PY - 2016/11/7

Y1 - 2016/11/7

N2 - We demonstrate efficient enhancement of soft X-ray (SXR) emission from molybdenum plasmas produced using dual pulse irradiation, in which 10-ns and 150-ps pre-pulses were followed by a 150-ps main pulse. The number of photons was observed to be 5.3 × 1016 photons/sr, which corresponded to a conversion efficiency of 1.5%/sr in λ = 2.34-4.38 nm region at a pulse separation time of 1 ns with the 150-ps pre-pulse. The conversion efficiency became 1.3 times as large as that produced by a single pulse. The results indicate the advantage of dual pulse irradiation using sub-ns pre-and main pulses to produce the bright plasmas required for applications such as laboratory based SXR microscopy.

AB - We demonstrate efficient enhancement of soft X-ray (SXR) emission from molybdenum plasmas produced using dual pulse irradiation, in which 10-ns and 150-ps pre-pulses were followed by a 150-ps main pulse. The number of photons was observed to be 5.3 × 1016 photons/sr, which corresponded to a conversion efficiency of 1.5%/sr in λ = 2.34-4.38 nm region at a pulse separation time of 1 ns with the 150-ps pre-pulse. The conversion efficiency became 1.3 times as large as that produced by a single pulse. The results indicate the advantage of dual pulse irradiation using sub-ns pre-and main pulses to produce the bright plasmas required for applications such as laboratory based SXR microscopy.

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Soft X-ray emission from molybdenum plasmas generated by dual laser pulses

Abstract

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