Semiconductor quantum well excitons in strong , narrowband terahertz fields


Optical transitions between exciton states in semiconductors— intraexcitonic transitions—usually fall into the terahertz (THz) range and can be resonantly excited with narrowband, intense THz radiation as provided by a free-electron laser. We investigate this situation for two different quantum well structures by probing the near-infrared excitonic… (More)


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