Quantum interference in a fs-dephasing medium induced by an intense hyper-continuum

Summary form only given. We have demonstrated absorption enhancement and emission suppression by the coherence control in the fs-dephasing medium. The ultra-broadband differential phase excitation controls the coupling between multiple energy levels. The pumping scheme is possibly applied to further broadband materials for the control of general material properties unlimited within the optical characteristics. Especially, coherence control by the UV and VUV broadband excitations coupling to the same continuum drastically changes ionization and reaction properties of material. Applications for reaction control, material processing, or optical control of short wavelength system, that are essentially connecting with their short-live and ultra-broadband nature may be remarkable future of this scheme.