Title :
Quantum interference in a fs-dephasing medium induced by an intense hyper-continuum
Author :
Nishioka, H. ; Koutaka, H. ; Ueda, K.
Author_Institution :
Inst. for Laser Sci., Univ. of Electro-communications, Tokyo, Japan
Abstract :
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.
Keywords :
high-speed optical techniques; light coherence; optical pumping; quantum interference phenomena; quantum optics; Rabi-flopping; Rabi-frequency; Rhodamine 6G dye; absorption control; absorption enhancement; absorption saturation; broadband pump beams; coherent excitation; emission control; emission suppression; femtosecond-dephasing medium; intense hyper-continuum; multiple coherences; quantum beating; quantum interference; relative Fourier-phase; simple two-level scheme; symmetric two-pulse differential-phase pumping; temporal coherence; two photon coupling; ultrafast media; Absorption; Coherence; Energy states; Interference; Material properties; Optical control; Optical materials; Optical pumping; Phase change materials; Stimulated emission;
Conference_Titel :
Lasers and Electro-Optics, 2001. CLEO '01. Technical Digest. Summaries of papers presented at the Conference on
Conference_Location :
Baltimore, MD, USA
Print_ISBN :
1-55752-662-1
DOI :
10.1109/CLEO.2001.948081
