• A 10-Hz terawatt class Ti:sapphire laser system: Development and applications

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      https://www.ias.ac.in/article/fulltext/pram/075/05/0875-0881

    • Keywords

       

      Femtosecond pulse generation and amplification; Ti:sapphire laser; surface nanostructuring of materials; laser-induced periodic nanostructures; nonlinear optical processes.

    • Abstract

       

      We developed a two-stage Ti:sapphire laser system to generate 16 mJ/80 fs laser pulses at a pulse repetition rate of 10 Hz. The key deriver for the present design is implementing a highly efficient symmetric confocal pre-amplifier and employing a simple, inexpensive synchronization scheme relying only on a commercial digital delay generator. We characterized the amplified pulses in spatial, spectral and temporal domains. The laser system was used to investigate various nonlinear optical processes, and to modify the optical properties of metal and semiconductor surfaces. We are currently building a third amplifier to boost the laser power to the multi-terawatt range.

    • Author Affiliations

       

      A K Sharma1 J Smedley1 T Tsang1 T Rao1

      1. Instrumentation Division, Brookhaven National Laboratory, Upton 11973, New York, USA
    • Dates

       
  • Pramana – Journal of Physics | News

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