Year: 2024
Type: article
Abstract: We demonstrate that the gate voltage Vg tunes the Schottky photocurrent ISG for the irradiation of two lights (Light A and B) in an n-AlGaAs/GaAs/AlGaAs double-heterojunction. Light A is a 975-nm laser that illuminates the entire Schottky gate region at 280 μW/mm2. Light B is a 670-nm laser that locally illuminates the ungated region at 0.4 μW. When Vg = 0 V, Light B doubles ISG for Light A. At Vg = 87 mV, ISG is generated only when both Light A and B are irradiated simultaneously, like the logical operation A∩B. When Vg = 165 mV, ISG is induced only for the illumination of Light A alone, like A∩B̄.
Source: AIP Advances
DOI: 10.1063/5.0233346
Author: Takuya Kawazu
Institution: National Institute for Materials Science
Language: English
Subfield: Atomic and Molecular Physics, and Optics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: gold
Estimated APC paid: $1,350
OpenAlex ID: W4404963687