for all 3C-devices with single mirror symmetry versus its 2 DoF λd, λed. The black solid curve denotes devices with electrical symmetry Rd = Re (i.e.λd = λe = 3λed). This curve goes right over the peak of the surface at 
with 
.
for all 3C-devices with single mirror symmetry versus its 2 DoF λd, λed. The black solid curve denotes devices with electrical symmetry Rd = Re (i.e.λd = λe = 3λed). This curve goes right over the peak of the surface at with .
