Negative dispersion medium at 1064 nm in an optomechanical resonator for enhancing the sensitivity bandwidth in a gravitational-wave detector

  title={Negative dispersion medium at 1064 nm in an optomechanical resonator for enhancing the sensitivity bandwidth in a gravitational-wave detector},
  author={Minchuan Zhou and Selim M. Shahriar},
Recently, we had proposed an optically-pumped five-level Gain EIT (GEIT) system, which has a transparency dip superimposed on a gain profile and exhibits a negative dispersion suitable for the white light cavity (WLC) enhanced interferometric gravitational wave detector [Phys. Rev. D. 92, 082002 (2015)]. Using this system as the negative dispersion medium (NDM) in the WLC-SR (signal recycling) scheme, we get an enhancement in the quantum noise (QN) limited sensitivity-bandwidth product by a… 
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