Shaped liquid drops generate MeV temperature electron beams with millijoule class laser

Angana Mondal; Ratul Sabui; Sheroy Tata; R. M.G.M. Trines; S. V. Rahul; Feiyu Li; Soubhik Sarkar; William Trickey; Rakesh Y. Kumar; Debobrata Rajak; John Pasley; Zhengming Sheng; Jagannath Jha; M. Anand; Ram Gopal; M. Krishnamurthy

doi:10.1038/s42005-024-01550-8

Shaped liquid drops generate MeV temperature electron beams with millijoule class laser

Angana Mondal, Ratul Sabui, Sheroy Tata, R. M.G.M. Trines, S. V. Rahul, Feiyu Li, Soubhik Sarkar, William Trickey, Rakesh Y. Kumar, Debobrata Rajak, John Pasley, Zhengming Sheng, Jagannath Jha, M. Anand, Ram Gopal, M. Krishnamurthy^*

^*Corresponding author for this work

Physics

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

Abstract

MeV temperature electrons are typically generated at laser intensities of 10¹⁸ W cm⁻². Their generation at non-relativistic intensities (~10¹⁶ W cm⁻²) with high repetition rate lasers is cardinal for the realization of compact, ultra-fast electron sources. Here we report a technique of dynamic target structuring of micro-droplets using a 1 kHz, 25 fs, millijoule class laser, that uses two collinear laser pulses; the first to create a concave surface in the liquid drop and the second, to dynamically-drive electrostatic plasma waves that accelerate electrons to MeV energies. The acceleration mechanism, identified as two plasmon decay instability, is shown to generate two beams of electrons with hot electron temperature components of 200 keV and 1 MeV, respectively, at an intensity of 4 × 10¹⁶ Wcm⁻², only. The electron beams are demonstrated to be ideal for single shot high resolution (tens of μm) electron radiography.

Original language	English
Article number	85
Number of pages	10
Journal	Communications Physics
Volume	7
Issue number	1
DOIs	https://doi.org/10.1038/s42005-024-01550-8
Publication status	Published - 7 Mar 2024

Bibliographical note

Funding Information:
The PIC simulations were partly supported by the supercomputer center ARCHER via the Plasma HEC Consortium under E PSRC (no. EP/L000237/1). MK thanks DAE-SRC-OI award for supporting this work. MK thanks professor Robert Bingham for suggestions and motivating discussions.

Publisher Copyright:
© The Author(s) 2024.

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Shaped liquid drops generate MeV temperature electron beams with millijoule class laser
© The Author(s) 2024
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Mondal, A., Sabui, R., Tata, S., Trines, R. M. G. M., Rahul, S. V., Li, F., Sarkar, S., Trickey, W., Kumar, R. Y., Rajak, D., Pasley, J., Sheng, Z., Jha, J., Anand, M., Gopal, R., & Krishnamurthy, M. (2024). Shaped liquid drops generate MeV temperature electron beams with millijoule class laser. Communications Physics, 7(1), Article 85. https://doi.org/10.1038/s42005-024-01550-8

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title = "Shaped liquid drops generate MeV temperature electron beams with millijoule class laser",

abstract = "MeV temperature electrons are typically generated at laser intensities of 1018 W cm−2. Their generation at non-relativistic intensities (~1016 W cm−2) with high repetition rate lasers is cardinal for the realization of compact, ultra-fast electron sources. Here we report a technique of dynamic target structuring of micro-droplets using a 1 kHz, 25 fs, millijoule class laser, that uses two collinear laser pulses; the first to create a concave surface in the liquid drop and the second, to dynamically-drive electrostatic plasma waves that accelerate electrons to MeV energies. The acceleration mechanism, identified as two plasmon decay instability, is shown to generate two beams of electrons with hot electron temperature components of 200 keV and 1 MeV, respectively, at an intensity of 4 × 1016 Wcm−2, only. The electron beams are demonstrated to be ideal for single shot high resolution (tens of μm) electron radiography.",

author = "Angana Mondal and Ratul Sabui and Sheroy Tata and Trines, {R. M.G.M.} and Rahul, {S. V.} and Feiyu Li and Soubhik Sarkar and William Trickey and Kumar, {Rakesh Y.} and Debobrata Rajak and John Pasley and Zhengming Sheng and Jagannath Jha and M. Anand and Ram Gopal and M. Krishnamurthy",

note = "Funding Information: The PIC simulations were partly supported by the supercomputer center ARCHER via the Plasma HEC Consortium under E PSRC (no. EP/L000237/1). MK thanks DAE-SRC-OI award for supporting this work. MK thanks professor Robert Bingham for suggestions and motivating discussions. Publisher Copyright: {\textcopyright} The Author(s) 2024.",

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doi = "10.1038/s42005-024-01550-8",

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T1 - Shaped liquid drops generate MeV temperature electron beams with millijoule class laser

AU - Mondal, Angana

AU - Sabui, Ratul

AU - Tata, Sheroy

AU - Trines, R. M.G.M.

AU - Rahul, S. V.

AU - Li, Feiyu

AU - Sarkar, Soubhik

AU - Trickey, William

AU - Kumar, Rakesh Y.

AU - Rajak, Debobrata

AU - Pasley, John

AU - Sheng, Zhengming

AU - Jha, Jagannath

AU - Anand, M.

AU - Gopal, Ram

AU - Krishnamurthy, M.

N1 - Funding Information: The PIC simulations were partly supported by the supercomputer center ARCHER via the Plasma HEC Consortium under E PSRC (no. EP/L000237/1). MK thanks DAE-SRC-OI award for supporting this work. MK thanks professor Robert Bingham for suggestions and motivating discussions. Publisher Copyright: © The Author(s) 2024.

PY - 2024/3/7

Y1 - 2024/3/7

N2 - MeV temperature electrons are typically generated at laser intensities of 1018 W cm−2. Their generation at non-relativistic intensities (~1016 W cm−2) with high repetition rate lasers is cardinal for the realization of compact, ultra-fast electron sources. Here we report a technique of dynamic target structuring of micro-droplets using a 1 kHz, 25 fs, millijoule class laser, that uses two collinear laser pulses; the first to create a concave surface in the liquid drop and the second, to dynamically-drive electrostatic plasma waves that accelerate electrons to MeV energies. The acceleration mechanism, identified as two plasmon decay instability, is shown to generate two beams of electrons with hot electron temperature components of 200 keV and 1 MeV, respectively, at an intensity of 4 × 1016 Wcm−2, only. The electron beams are demonstrated to be ideal for single shot high resolution (tens of μm) electron radiography.

AB - MeV temperature electrons are typically generated at laser intensities of 1018 W cm−2. Their generation at non-relativistic intensities (~1016 W cm−2) with high repetition rate lasers is cardinal for the realization of compact, ultra-fast electron sources. Here we report a technique of dynamic target structuring of micro-droplets using a 1 kHz, 25 fs, millijoule class laser, that uses two collinear laser pulses; the first to create a concave surface in the liquid drop and the second, to dynamically-drive electrostatic plasma waves that accelerate electrons to MeV energies. The acceleration mechanism, identified as two plasmon decay instability, is shown to generate two beams of electrons with hot electron temperature components of 200 keV and 1 MeV, respectively, at an intensity of 4 × 1016 Wcm−2, only. The electron beams are demonstrated to be ideal for single shot high resolution (tens of μm) electron radiography.

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VL - 7

JO - Communications Physics

JF - Communications Physics

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ER -

Shaped liquid drops generate MeV temperature electron beams with millijoule class laser

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