Emre Mehmet's research while affiliated with Hacettepe University and other places

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Publication (1)

Fluorescence Excitation by Enhanced Plasmon Upconversion under Continuous Wave Illumination
Article
  • Jan 2017
We demonstrate effective background-free continuous wave nonlinear optical excitation of molecules that are sandwiched between asymmetrically constructed plasmonic gold nanoparticle clusters. We observe that near infrared photons are converted to visible photons through efficient plasmonic second harmonic generation. Our theoretical model and simul...
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Citations

... Here χ (2) ; (i) determines the strength of the SHG process, (ii) demonstrates us why second harmonic conversion takes place between plasmon of different frequencies and (iii) gives the selection rules for SHG process. Why SHG is not observed in the far-field for a centro-symmetric plasmonic nano-structure can be observed from this overlap integral χ (2) (37). When a QE couples to one of the hot spots of the MNP, it strongly interacts with that mode. ...
Reference: Controlling steady-state second harmonic signal via linear and nonlinear Fano resonances
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