Title :
Blue- and red-shifting amplified spontaneous emission of CdSe/CdS core/shell colloidal quantum dots
Author :
Kelestemur, Yusuf ; Cihan, Ahmet Fatih ; Guzelturk, Burak ; Yerli, Ozan ; Kurum, Ulas ; Yaglioglu, Halime Gul ; Elmali, Ayhan ; Demir, Hilmi Volkan
Author_Institution :
Dept. of Electr. & Electron. Eng., Bilkent Univ., Ankara, Turkey
Abstract :
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.
Keywords :
II-VI semiconductors; cadmium compounds; colloids; excitons; nanophotonics; optical materials; optical pumping; red shift; semiconductor quantum dots; superradiance; two-photon processes; CdSe-CdS; CdSe/CdS core/shell colloidal quantum dots; blue-shifting amplified spontaneous emission; core/shell dimensions; exciton-exciton interactions; low optical gain threshold; red-shifting amplified spontaneous emission; two-photon absorption pumping; Optical pulses; Optical pumping; Optical sensors; Spontaneous emission; Stimulated emission;
Conference_Titel :
Lasers and Electro-Optics (CLEO), 2013 Conference on
Conference_Location :
San Jose, CA
