614 citations · 1.1k across the 20 of their papers we have counts for
3 papers · 1 filter
Scaling of exciton binding energy with external dielectric function in carbon nanotubes
Andrew G. Walsh, A. Nickolas Vamivakas, Yan Yin +4
We develop a scaling relationship between the exciton binding energy and the external dielectric function in carbon nanotubes. We show that the electron-electron and electron-hole…
Strong extinction of a far-field laser beam by a single quantum dot
A. N. Vamivakas, M. Atature, J. Dreiser +6
Through the utilization of index-matched GaAs immersion lens techniques we demonstrate a record extinction (12%) of a far-field focused laser by a single InAs/GaAs quantum dot. Thi…
Screening of Excitons in Single, Suspended Carbon Nanotubes
Andrew G. Walsh, A. Nickolas Vamivakas, Yan Yin +4
Resonant Raman spectroscopy of single carbon nanotubes suspended across trenches displays red shifts of up to 30 meV of the electronic transition energies as a function of the surr…