Improved metal-semiconductor position detector with oscillating lateral photovoltaic effect.
The most outstanding feature of a lateral photovoltaic effect (LPE) is its linear response to the light position. We report an oscillating LPE in a modified metal-semiconductor (MS) structure, in which the lateral photovoltage (LPV) will oscillate with light position. Compared with the linear LPV in that conventional MS structure, this effect shows a controllable oscillation with sharp change with light position, opening a new method of detecting very small displacement with much higher precision and sensitivity.
Yu
Chong Qi
CQ
Department of Physics, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China.
Wang
Hui
H