• Nonlinear optical studies in semiconductor-doped glasses under femtosecond pulse excitation

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    • Keywords

       

      Nonlinear optics; semiconductor-doped glasses; Z-scan.

    • Abstract

       

      Nonlinear optical studies in semiconductor-doped glasses (SDGs) are performed under femtosecond laser pulse excitation. Z-scan experiments with 800 nm wave- length pulses are used to excite SDG samples in the resonance and non-resonance regimes. Schott colour glass filter OG 515 shows stronger two-photon absorption than GG 420 and both the samples exhibit positive nonlinearity. However, in resonantly excited RG 850 the intensity-dependent Z-scan shows transition from saturable to reverse saturable absorption behaviour with the increase in intensity.

    • Author Affiliations

       

      C P Singh1 K S Bindra1 S M Oak2

      1. Laser Physics Applications Division, Raja Ramanna Centre for Advanced Technology, Indore 452 013, India
      2. Solid State Laser Division, Raja Ramanna Centre for Advanced Technology, Indore 452 013, India
    • Dates

       
  • Pramana – Journal of Physics | News

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