High repetition rate collisional soft x-ray lasers based on grazing incidence pumping

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We discuss the demonstration of gain-saturated high repetition rate table-top soft x-ray lasers producing microwatt average powers at wavelengths ranging from 13.9 to 33 nm. The results were obtained heating a pre-created plasma with a picosecond optical laser pulse impinging at grazing incidence onto a pre-created plasma. This pumping geometry increases the energy deposition efficiency of the pump beam into the gain region, making it possible to saturate soft x-ray lasers in this wavelength range with a short pulse pump energy of only 1 J at 800 nm wavelength. Results corresponding to 5 Hz repetition rate operation of gain-saturated 14.7 ... continued below

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Luther, B M; Wang, Y; Larotonda, M A; Alessi, D; Berrill, M; Rocca, J J et al. November 18, 2005.

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We discuss the demonstration of gain-saturated high repetition rate table-top soft x-ray lasers producing microwatt average powers at wavelengths ranging from 13.9 to 33 nm. The results were obtained heating a pre-created plasma with a picosecond optical laser pulse impinging at grazing incidence onto a pre-created plasma. This pumping geometry increases the energy deposition efficiency of the pump beam into the gain region, making it possible to saturate soft x-ray lasers in this wavelength range with a short pulse pump energy of only 1 J at 800 nm wavelength. Results corresponding to 5 Hz repetition rate operation of gain-saturated 14.7 nm Ni-like Pd and 32.6 nm line Ne-like Ti lasers pumped by a table-top Ti:sapphire laser are reported. We also discuss results obtained using a 1 {omega} 1054 nm pre-pulse and 2{omega} 527 nm short pulse from a Nd:glass pump laser. This work demonstrates the feasibility of producing compact high average power soft x-ray lasers for applications.

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PDF-file: 44 pages; size: 0.8 Mbytes

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  • Journal Name: IEEE Journal of Selected Topics in Quantum Electronics, vol. 42, no. 1, January 1, 2006, pp. 4 - 13

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  • Report No.: UCRL-JRNL-217566
  • Grant Number: W-7405-ENG-48
  • Office of Scientific & Technical Information Report Number: 898026
  • Archival Resource Key: ark:/67531/metadc881977

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  • November 18, 2005

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  • Sept. 22, 2016, 2:13 a.m.

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  • Nov. 29, 2016, 12:37 p.m.

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Luther, B M; Wang, Y; Larotonda, M A; Alessi, D; Berrill, M; Rocca, J J et al. High repetition rate collisional soft x-ray lasers based on grazing incidence pumping, article, November 18, 2005; Livermore, California. (digital.library.unt.edu/ark:/67531/metadc881977/: accessed November 14, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.