Pramana

, Volume 75, Issue 5, pp 875–881 | Cite as

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

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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.

Keywords

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

© Indian Academy of Sciences 2010

Authors and Affiliations

  1. 1.Instrumentation DivisionBrookhaven National LaboratoryUptonUSA

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