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Review of Scientific Instruments / Volume 82 / Issue 12 / ARTICLES / Nuclear Physics, Fusion and Plasmas

Rev. Sci. Instrum. 82, 123506 (2011); http://dx.doi.org/10.1063/1.3670730 (5 pages)

Study of self-generated magnetic fields in laser produced plasmas using a three-channel polaro-interferometer

Y. B. S. R. Prasad1, S. Barnwal1, E. A. Bolkhovitinov2, P. A. Naik1, M. P. Kamath1, A. S. Joshi1, S. R. Kumbhare1, A. A. Rupasov2, and P. D. Gupta1

1Laser Plasma Division, Raja Ramanna Centre for Advanced Technology, Indore 452013, India
2Laboratory of Plasma Diagnostics, P.N. Lebedev Physical Institute, 53 Leninsky Prospekt, Moscow 117924, Russia

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(Received 2 September 2011; accepted 29 November 2011; published online 23 December 2011)

Self-generated magnetic fields produced in laser plasmas at moderate laser intensities have been measured using a three-channel polaro-interferometer. The main elements of this device are two birefringent calcite wedges placed between two crossed polarizers. Using this device, the spatial profiles of (a) the rotation angle (polarometry), (b) the electron density (interferometry), and (c) the transmitted probe beam intensity (shadowgraphy) are recorded simultaneously using a digital camera with a large format CCD in a single laser shot. Magnetic fields of 2–4 MG had been estimated in aluminum plasma at laser intensities ∼1013 W/cm2. It is also possible to use this device in other configurations to get time resolved information.

© 2011 American Institute of Physics

Article Outline

  1. INTRODUCTION
  2. THE OPTICAL SCHEME
  3. EXPERIMENTAL SETUP
  4. RESULTS AND ANALYSIS
  5. CONCLUSIONS

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KEYWORDS and PACS

Keywords

aluminium, plasma density, plasma diagnostics, plasma light propagation

PACS

  • 52.38.Fz

    Laser-induced magnetic fields in plasmas

  • 52.70.Kz

    Optical (ultraviolet, visible, infrared) measurements

  • 52.25.Os

    Emission, absorption, and scattering of electromagnetic radiation

ARTICLE DATA

Digital Object Identifier
http://dx.doi.org/10.1063/1.3670730

PUBLICATION DATA

ISSN

0034-6748 (print)  
1089-7623 (online)

Publisher

$abstract.society.value is a Member of CrossRef American Institute of Physics

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