45 citations · 80 across the 4 of their papers we have counts for
5 papers · 1 filter
Ultrafast photodetection in the quantum wells of single AlGaAs/GaAs-based nanowires
Nadine Erhard, Stefan Zenger, Stefanie Morkötter +8
We investigate the ultrafast optoelectronic properties of single Al0.3Ga0.7As/GaAs-core-shell-nanowires. The nanowires contain GaAs-based quantum wells. For a resonant excitation o…
Ultrafast photocurrents and THz generation in single InAs-nanowires
Nadine Erhard, Paul Seifert, Leonhard Prechtel +5
To clarify the ultrafast temporal interplay of the different photocurrent mechanisms occurring in single InAs-nanowire-based circuits, an on-chip photocurrent pump-probe spectrosco…
Optical control of internal electric fields in band-gap graded InGaN nanowires
N. Erhard, A. T. M. Golam Sarwar, F. Yang +3
InGaN nanowires are suitable building blocks for many future optoelectronic devices. We show that a linear grading of the indium content along the nanowire axis from GaN to InN int…
Semiconductor nanowires studied by photocurrent spectroscopy
Nadine Erhard, Alexander Holleitner
Photocurrent spectroscopy is a versatile technique to identify and understand the optoelectronic dynamics occurring in semiconductor nanowires. Conventional photocurrent spectrosco…
Polarization dependent, surface plasmon induced photoconductance in gold nanorod arrays
S. Diefenbach, N. Erhard, J. Schopka +4
We report on the photoconductance in two-dimensional arrays of gold nanorods which is strongly enhanced at the frequency of the longitudinal surface plasmon of the nanorods. The ar…