64 citations · 404 across the 53 of their papers we have counts for
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Negative superluminal velocity and violation of Kramers-Kronig relations in "causal" optical setups
Mehmet Emre Tasgin
We investigate nonanalyticities (e.g., zeros and poles) of refractive index and group index in different optical setups. We first demonstrate that: while a Lorentzi…
Fano-control of down-conversion in a nonlinear crystal embedded with plasmonic-quantum emitter hybrid structures
Zafer Artvin, Mehmet Günay, Alpan Bek +1
Control of nonlinear response of nanostructures via path interference effects, i.e., Fano resonances, has been studied extensively. In such studies, a frequency conversion process…
Single-molecule-resolution ultrafast near-field optical microscopy via plasmon lifetime extension
Rasim Volga Ovali, Ramazan Sahin, Alpan Bek +1
A recent study shows that: when a long lifetime particle is positioned near a plasmonic metal nanoparticle, lifetime of plasmon oscillations extends, but, "only" near that long-lif…
Ultra-large actively tunable photonic band gaps via plasmon-analog of index enhancement
Emre Yuce, Ahmet Kemal Demir, Zafer Artvin +3
We present a novel method for active continuous-tuning of a band gap which has a great potential to revolutionize current photonic technologies. We study a periodic structure of x…