Fig. 3
Laser position dependence of d11-SHG signal along the CdS nanobelt device. a d11-SHG signal scanned over the entire nanobelt from the source to drain electrodes at VDS = 30 V. The calculated curve was obtained using equation 1 and Supplementary Equation 19 in Supplementary Note 4. b Position dependence of voltage-controlled SHG. Inset: optical images of the nanobelt device when the FW was incident at different regions at X1, X2, X3, X4, and X5 from source to drain electrodes
