Nanotechnology Now

Our NanoNews Digest Sponsors
Heifer International



Home > Press > Innovative sensing platform unlocks ultrahigh sensitivity in conventional sensors: Lan Yang and her team have developed new plug-and-play hardware to dramatically enhance the sensitivity of optical sensors

Abstract:
Optical sensors serve as the backbone of numerous scientific and technological endeavors, from detecting gravitational waves to imaging biological tissues for medical diagnostics. These sensors use light to detect changes in properties of the environment they’re monitoring, including chemical biomarkers and physical properties like temperature. A persistent challenge in optical sensing has been enhancing sensitivity to detect faint signals amid noise.

Innovative sensing platform unlocks ultrahigh sensitivity in conventional sensors: Lan Yang and her team have developed new plug-and-play hardware to dramatically enhance the sensitivity of optical sensors

St. Louis, MO | Posted on April 5th, 2024

New research from Lan Yang, the Edwin H. & Florence G. Skinner Professor in the Preston M. Green Department of Electrical & Systems Engineering in the McKelvey School of Engineering at Washington University in St. Louis, unlocks the power of exceptional points (EPs) for advanced optical sensing. In a study published April 5 in Science Advances, Yang and first author Wenbo Mao, a doctoral student in Yang’s lab, showed that these unique EPs – specific conditions in systems where extraordinary optical phenomena can occur – can be deployed on conventional sensors to achieve a striking sensitivity to environmental perturbations.

Yang and Mao developed an EP-enhanced sensing platform that overcomes the limitations of previous approaches. Unlike traditional methods that require modifications to the sensor itself, their innovative system features an EP control unit that can plug into physically separated external sensors. This configuration allows EPs to be tuned solely through adjustments to the control unit, allowing for ultrahigh sensitivity without the need for complex modifications to the sensor.

“We’ve implemented a novel platform that can impart EP enhancement to conventional optical sensors,” Yang said. “This system represents a revolutionary extension of EP-enhanced sensing, significantly expanding its applicability and universality. Any phase-sensitive sensor can acquire improved sensitivity and reduced detection limit by connecting to this configuration. Simply by tuning the control unit, this EP configuration can adapt to various sensing scenarios, such as environmental detection, health monitoring and biomedical imaging.”

By decoupling the sensing and control functions, Yang and Mao have effectively skirted the stringent physical requirements for operating sensors at EPs that have so far hindered their widespread adoption. This clears the way for EP enhancement to be applied to a wide range of conventional sensors – including ring resonators, thermal and magnetic sensors, and sensors that pick up vibrations or detect perturbations in biomarkers – vastly improving the detection limit of sensors scientists are already using. With the control unit set to an EP, the sensor can operate differently – not at an EP – and still reap the benefits of EP enhancement.

As a proof-of-concept, Yang’s team tested a system’s detection limit, or ability to detect weak perturbations over system noise. They demonstrated a six-fold reduction in the detection limit of a sensor using their EP-enhanced configuration compared to the conventional sensor.

“With this work, we’ve shown that we can significantly enhance our ability to detect perturbations that have weak signals,” Mao said. “We’re now focused on bringing that theory to broad applications. I’m specifically focused on medical applications, especially working to enhance magnetic sensing, which could be used to improve MRI technology. Currently, MRIs require a whole room with careful temperature control. Our EP platform could be used to enhance magnetic sensing to enable portable, bedside MRI.”

###

This project is supported in part by the Chan Zuckerberg Initiative (CZI). The authors acknowledge the Institute of Materials Science & Engineering (IMSE) at Washington University in St. Louis for the use of instruments, financial support and staff assistance.

####

For more information, please click here

Contacts:
Leah Shaffer
Washington University in St. Louis

Copyright © Washington University in St. Louis

If you have a comment, please Contact us.

Issuers of news releases, not 7th Wave, Inc. or Nanotechnology Now, are solely responsible for the accuracy of the content.

Bookmark:
Delicious Digg Newsvine Google Yahoo Reddit Magnoliacom Furl Facebook

Related Links

Mao W, Fu Z, Li Y, Li F, and Yang L. Exceptional-point-enhanced phase sensing. Science Advances, April 5, 2024. DOI: doi.org/10.1126/sciadv.adl5037

Related News Press

News and information

Researchers are cracking the code on solid-state batteries: Using a combination of advanced imagery and ultra-thin coatings, University of Missouri researchers are working to revolutionize solid-state battery performance February 28th, 2025

Unraveling the origin of extremely bright quantum emitters: Researchers from Osaka University have discovered the fundamental properties of single-photon emitters at an oxide/semiconductor interface, which could be crucial for scalable quantum technology February 28th, 2025

Closing the gaps — MXene-coating filters can enhance performance and reusability February 28th, 2025

Rice researchers harness gravity to create low-cost device for rapid cell analysis February 28th, 2025

Possible Futures

Researchers are cracking the code on solid-state batteries: Using a combination of advanced imagery and ultra-thin coatings, University of Missouri researchers are working to revolutionize solid-state battery performance February 28th, 2025

Unraveling the origin of extremely bright quantum emitters: Researchers from Osaka University have discovered the fundamental properties of single-photon emitters at an oxide/semiconductor interface, which could be crucial for scalable quantum technology February 28th, 2025

Closing the gaps — MXene-coating filters can enhance performance and reusability February 28th, 2025

Rice researchers harness gravity to create low-cost device for rapid cell analysis February 28th, 2025

Sensors

Quantum engineers ‘squeeze’ laser frequency combs to make more sensitive gas sensors January 17th, 2025

UCF researcher discovers new technique for infrared “color” detection and imaging: The new specialized tunable detection and imaging technique for infrared photons surpasses present technology and may be a cost-effective method of capturing thermal imaging or night vision, medica December 13th, 2024

Beyond wires: Bubble technology powers next-generation electronics:New laser-based bubble printing technique creates ultra-flexible liquid metal circuits November 8th, 2024

Nanotechnology: Flexible biosensors with modular design November 8th, 2024

Discoveries

Development of 'transparent stretchable substrate' without image distortion could revolutionize next-generation displays Overcoming: Poisson's ratio enables fully transparent, distortion-free, non-deformable display substrates February 28th, 2025

Unraveling the origin of extremely bright quantum emitters: Researchers from Osaka University have discovered the fundamental properties of single-photon emitters at an oxide/semiconductor interface, which could be crucial for scalable quantum technology February 28th, 2025

Closing the gaps — MXene-coating filters can enhance performance and reusability February 28th, 2025

Rice researchers harness gravity to create low-cost device for rapid cell analysis February 28th, 2025

Announcements

Development of 'transparent stretchable substrate' without image distortion could revolutionize next-generation displays Overcoming: Poisson's ratio enables fully transparent, distortion-free, non-deformable display substrates February 28th, 2025

Unraveling the origin of extremely bright quantum emitters: Researchers from Osaka University have discovered the fundamental properties of single-photon emitters at an oxide/semiconductor interface, which could be crucial for scalable quantum technology February 28th, 2025

Closing the gaps — MXene-coating filters can enhance performance and reusability February 28th, 2025

Rice researchers harness gravity to create low-cost device for rapid cell analysis February 28th, 2025

Interviews/Book Reviews/Essays/Reports/Podcasts/Journals/White papers/Posters

Development of 'transparent stretchable substrate' without image distortion could revolutionize next-generation displays Overcoming: Poisson's ratio enables fully transparent, distortion-free, non-deformable display substrates February 28th, 2025

Leading the charge to better batteries February 28th, 2025

Quantum interference in molecule-surface collisions February 28th, 2025

New ocelot chip makes strides in quantum computing: Based on "cat qubits," the technology provides a new way to reduce quantum errors February 28th, 2025

NanoNews-Digest
The latest news from around the world, FREE




  Premium Products
NanoNews-Custom
Only the news you want to read!
 Learn More
NanoStrategies
Full-service, expert consulting
 Learn More











ASP
Nanotechnology Now Featured Books




NNN

The Hunger Project