title: Improved metal-semiconductor position detector with oscillating lateral photovoltaic effect.
abstract: 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.
authors.affiliation: Department of Physics, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China.
authors.forename: Chong Qi
authors.initials: CQ
authors.lastname: Yu
authors.forename: Hui
authors.initials: H
authors.lastname: Wang