We have proposed a new subpicosecond VUV laser system at 126 nm, where we have used Ar2* amplifier to amplify a weak VUV ultrashort seed pulse generated by harmonic generation. The seventh-order harmonic emission at 126 nm of a high intensity laser at 882 nm was optimized as a seed pulse for our laser system. We are currently working to amplify the VUV seed pulse by using OFI Ar2* amplifier.
