Blue-and red-shifting amplified spontaneous emission of CdSe/CdS core/shell colloidal quantum dots
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We report blue- and red-shifting amplified spontaneous emission of CdSe/CdS quantum dots, controlled by varying core/shell dimensions and modifying exciton-exciton interactions, with low optical gain threshold of two-photon absorption pumping. © 2013 The Optical Society.
KeywordsSemiconductor quantum dots
Two photon processes
Amplified spontaneous emissions
Colloidal quantum dots