Compact GaN-Based Photonic Chip for In Situ Real-Time Monitoring of Low Water Content in Ethanol
Source abstract
Abstract
Rapid, precise, and real-time monitoring of water content in ethanol solution is essential in a variety of demanding practical and industrial applications. Here, we demonstrate the fabrication of a compact GaN-based photonic chip for monitoring the water concentration in ethanol. Light from the emitter can be coupled to the monolithic integrated detector through the sapphire substrate. The detected photocurrent signal varies with the optical reflectance at the sapphire/ethanol interface. Through a series of experiments, the feasibility of the photonic chip is verified by revealing its compact structure, subsecond response, high sensitivity to extremely low water content, and high stability.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: GaN-based semiconductor devices and materials · Photonic and Optical Devices · Nanowire Synthesis and Applications
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
School of Microelectronics, Southern University of Science and Technology, Shenzhen 518055, China
Dongguan Institute of Optoelectronics, Peking University, Dongguan 523808, China
Engineering Research Center of Integrated Circuits for Next-Generation Communications, Ministry of Education, Southern University of Science and Technology, Shenzhen 518055, China
Funding
Southern University of Science and Technology · Basic and Applied Basic Research of Guangdong Province
References (22)
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