Yazar "Nayfeh, Ammar" için listeleme
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Ionization-induced optical heterogeneity and ion-like direct emission in 1-nm silicon nanoparticle grains: Prospect for fast optical modulation
Mantey, Kevin; Morgan, Huw; Nayfeh, Ammar; Bahçeci, Ersin; Nayfeh, Munir H. (American Institute of Physics Inc., 2022)Silicon, a highly symmetric and homogeneous material, does not exhibit fast optical modulation. Recent classical electrodynamics simulations, however, demonstrated transient optical heterogeneity in silicon nanostructures, ... -
Polarization-based surface enhanced Raman scattering from single colloidal DNA decorated with 3 nm silicon nanoparticles
Mantey, Kevin; Quagliano, Lucia; Rezk, Ayman; Palleschi, Simonetta; Abuhassan, Laila; Nayfeh, Ammar; Bahçeci, Ersin; Nayfeh, Munir H. (American Institute of Physics Inc., 2021)Surface enhanced Raman scattering (SERS), in which sample molecules are placed in the proximity of conducting nanostructures, subjects the molecules to intense electron oscillation (plasmon) field. The intense field, ... -
Time-thermo-dynamics of anti-Stokes and Stokes scattering and luminescence in 1-nm silicon nanoparticles: Toward an optical nanorefrigerator
Nayfeh, Munir H.; Morgan, Huw; Nayfeh, Ammar; Bahçeci, Ersin; Abuhassan, Laila (American Institute of Physics Inc., 2022)The thermodynamics of nanosystems is interesting, as they constitute the transition between the atomistic and solid states. This is empowered by the development of tools to manipulate individual atoms and perform atomistic ... -
Wet non-thermal integration of nano binary silicon-gold system with strong plasmonic and luminescent characteristics
Enders, Brian; Koçyiğit, Adem; Bahçeci, Ersin; Elhalawany, Noha; Nayfeh, Ammar; Alshammari, Owrad; Alsalhi, Mohamad; Nayfeh, Munir (Amer Inst Physics, 2019)We report on a wet none thermal integration of the binary silicon-gold nano system. Instead of thermally based gas-solid procedures, we use charge exchange/injection-based procedures in a chemical wet environment. SEM and ...
