Browsing by Keywords "Gain medium"

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High average and peak power femtosecond large-pitch photonic-crystal-fiber laser

Baumgartl, M.; Jansen F.; Stutzki F.; Jauregui, C.; Ortaç, B.; Limpert J.; Tünnermann, A. (2011)

We report on the generation of high-average-power and high-peak-power ultrashort pulses from a mode-locked fiber laser operating in the all-normal-dispersion regime. As gain medium, a large-mode-area ytterbium-doped ...
Observation of biexcitons in the presence of trions generated via sequential absorption of multiple photons in colloidal quantum dot solids

Cihan, Ahmet Fatih; Hernandez-Martinez Pedro L.; Kelestemur, Yusuf; Demir, Hilmi Volkan (IEEE, 2012)

Multi exciton generation (MEG) and multi exciton recombination (MER) in semiconductor quantum dots (QDs) have recently attracted significant scientific interest as a possible means to improve device efficiencies [1-5]. ...