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A wearable hologram sensor is able to instantly notify its user of the presence of volatile gases. The wearable device overcomes issues of high expense associated with current gas sensing technology, addressing the needs of workers in hazardous environments, such as petrochemical plants.
The sensor was developed through a joint research effort at Pohang University of Science and Technology (POSTECH) led by Junsuk Rho, a professor in the departments of mechanical and chemical engineering, and Young-Ki Kim of the department of chemical engineering. It integrates a metasurface with a gas-reactive liquid crystal optical modulator to provide an immediate visual holographic alarm when harmful gases are detected.
The metasurface the…READ MORE