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Coherent control of optical bistability in Rydberg electromagnetically-induced transparency atomic system
You-Lin Chuang, Mehmet Emre Tasgin
We study optical bistable behavior of a Rydberg electromagnetically-induced transparency (EIT) atomic medium in a unidirectional optical ring-cavity. Due to strong van del Waal (vd…
Enhanced spontaneous down-conversion in a nonlinear crystal embedded with plasmonic-quantum emitter hybrid structures
Zafer Artvin, Mehmet Emre Tasgin, Alpan Bek +1
Control of nonlinear response of nanostructures via path interference effects, i.e. Fano resonances, has been studied extensively. In such materials, a frequency conversion process…
Ultra-high resolution aSNOM imaging at off-resonant wavelengths
Ramazan Sahin, Mehmet Gunay, Alpan Bek +1
An atomic force microscope~(AFM) tip, with a few nm-thick noble metal coating, gives rise to strong electric-field at the near-field of tip apex, i.e. hot spot, when illuminated wi…
Controlling steady-state second harmonic signal via linear and nonlinear Fano resonances
Mehmet Günay, Zafer Artvin, Alpan Bek +1
Nonlinear signal even from a single molecule becomes visible at hot spots of plasmonic nanoparticles. In these structures, Fano resonances can control the nonlinear response in two…