We can't find the internet
Attempting to reconnect
Something went wrong!
Hang in there while we get back on track
One-shot detection of light ellipticity using a two-dimensional quantum material device
AI summary Read the abstract
Researchers developed a single-device approach to detect light ellipticity in one shot using a two-dimensional quantum material optoelectronic device, overcoming the inherent coupling between light intensity and polarization state that limits conventional sensors. The device enables rapid, simplified ellipticity measurement relevant to target imaging and recognition in complex optical environments.
Detection of light ellipticity is of crucial importance for target imaging and recognition in complex scenarios. However, it has been challenging to achieve one-shot detection of light ellipticity by a single conventional optoelectronic device, due to coupling between light intensity and polarization. Here, we realize one-shot detection of light ellipticity by using a single four-terminal valley Hall device based on monolayer MoS2 quantum material. The device can decouple the light intensity and the elliptical polarization and enable simultaneous detection of the light intensity and the elliptical polarization by using photoconduction and valley Hall effects. We show that the light ellipticity can be directly detected by measuring the Hall resistance of the device, which is defined as the ratio between the Hall voltage and the photocurrent. Furthermore, we demonstrate that our proposed approach can be used for detecting microplastics present in soil at a higher recognition precision than conventional approaches. Our work highlights the potential of exploiting unique properties of 2D quantum materials for multi-dimensional perception of optical information.
More Papers Like This
A prototype for detection of particles in sea water by using polarize-light scattering
AI summary Read the abstract
Researchers developed a prototype instrument using polarized light scattering to detect particles — including microplastics — in seawater in real time. The device could enable faster, in-field monitoring of microplastic concentrations without the need to bring samples back to a laboratory for analysis.
Quantum photonics detection of environmental microplastics (Conference Presentation)
AI summary Read the abstract
Researchers proposed using quantum photonics and entangled photons to build a new class of compact mid-infrared spectrometers for detecting microplastics in the environment. Traditional mid-infrared instruments are large and fragile, limiting field use. A quantum-based spectrometer could enable portable, on-site microplastic identification in water and air samples.
Droplet-based Opto-microfluidic Device for Microplastic Sensing in Aqueous Solutions
AI summary Read the abstract
Researchers developed a microfluidic device using light to detect plastic microspheres in water droplets, offering a new tool for identifying microplastic contamination in aquatic environments.
In-situ Detection Method for Microplastics in Water by Polarized Light Scattering
AI summary Read the abstract
Researchers developed an in-situ detection method for microplastics in water using polarized light scattering at 120 degrees, enabling real-time measurement of individual particles without sample collection or laboratory processing.
Optofluidic light-droplet interaction for rapidly assessing the presence of plastic microspheres within aqueous suspensions
AI summary Read the abstract
Scientists developed a new device that can quickly detect tiny plastic particles (called microplastics) in water by shining light through water droplets and measuring how much light gets blocked. The device can spot extremely small amounts of plastic pollution - even particles smaller than the width of a human hair. This technology could help us better monitor plastic contamination in drinking water and the environment, which is important since these tiny plastics can harm both ecosystems and human health.
Research digests by email
When a large batch of papers lands in the Atlas, we read through it and send a short write-up of what stood out.