Browsing by Keywords "Two photon processes"

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Blue-and red-shifting amplified spontaneous emission of CdSe/CdS core/shell colloidal quantum dots

Kelestemur, Y.; Cihan, A.F.; Guzelturk, B.; Yerli O.; Kurum, U.; Yaglioglu H.G.; Elmali, A.; Demir, H. V. (IEEE Computer Society, 2013)

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 ...
Ultralow-threshold up-converted lasing in oligofluorenes with tailored strong nonlinear absorption

Guzelturk, B.; Kanibolotsky, A.L.; Orofino-Pena, C.; Laurand, N.; Dawson, M.D.; Skabara P.J.; Demir, H. V. (Royal Society of Chemistry, 2015)

Nonlinear optical response in organic semiconductors has been an attractive property for many practical applications. For frequency up-converted lasers, to date, conjugated polymers, fluorescent dyes and small organic ...