Selective excitation and detection of spin states in a single nanowire quantum dot.
We report exciton spin memory in a single InAs(0.25)P(0.75) quantum dot embedded in an InP nanowire. By synthesizing clean quantum dots with linewidths as narrow as about 30 microeV, we are able to resolve individual spin states at magnetic fields on the order of 1 T. We can prepare a given spin state by tuning excitation polarization or excitation energy. These experiments demonstrate the potential of this system to form a quantum interface between photons and electrons.
van Weert
Maarten H M
MH
Kavli Institute of Nanoscience, Delft, The Netherlands.
Akopian
Nika
N
Perinetti
Umberto
U
van Kouwen
Maarten P
MP
Algra
Rienk E
RE
Verheijen
Marcel A
MA
Bakkers
Erik P A M
EP
Kouwenhoven
Leo P
LP
Zwiller
Val
V