Manipulating quantum dots to nanometer precision by control of flow.
We present a method for manipulating preselected quantum dots (QDs) with nanometer precision by flow control. The accuracy of this approach scales more favorably with particle size than optical trapping, enabling more precise positioning of nanoscopic particles. We demonstrate the ability to position a single QD in a 100 microm working region to 45 nm accuracy for holding times exceeding one hour and the ability to take active quantum measurements on the dynamically manipulated QD.
Department of Electrical and Computer Engineering, University of Maryland, College Park, Maryland 20742, USA.
Chad
C
Ropp
Roland
R
Probst
Zachary
Z
Cummins
Rakesh
R
Kumar
Andrew J
AJ
Berglund
Srinivasa R
SR
Raghavan
Edo
E
Waks
Benjamin
B
Shapiro