Close Menu
  • News
  • Medical
  • Technology
  • Nanomaterials
  • Research
  • Blog
    • Nasiol.com
  • Contact
    • Tech7685@gmail.com
What's Hot

A new molecular model of bilayer graphene with higher semiconducting properties

May 31, 2025

5 Nanomaterial Innovations That Didn’t Deliver (Yet)

May 30, 2025

Scientists identify new 2D copper boride material with unique atomic structure

May 30, 2025
Facebook X (Twitter) Instagram
Nanotech – Nanomaterials | Medical | Research | News Stories Updated Daily Nanotech – Nanomaterials | Medical | Research | News Stories Updated Daily
  • News
  • Medical
  • Technology
  • Nanomaterials
  • Research
  • Blog
    • Nasiol.com
  • Contact
    • Tech7685@gmail.com
Facebook X (Twitter) Instagram
Nanotech – Nanomaterials | Medical | Research | News Stories Updated Daily Nanotech – Nanomaterials | Medical | Research | News Stories Updated Daily
Home»News»High-speed electron camera uncovers new ‘light-twisting’ behavior in ultrathin material
News

High-speed electron camera uncovers new ‘light-twisting’ behavior in ultrathin material

July 20, 2024No Comments3 Mins Read
Facebook Twitter Pinterest Telegram LinkedIn Tumblr WhatsApp Email
High-speed electron camera uncovers new ‘light-twisting’ behavior in ultrathin material
Share
Facebook Twitter LinkedIn Pinterest Telegram Email
Snapshot taken by SLAC’s high-speed electron camera, an instrument for ultrafast electron diffraction (MeV-UED), showing evidence of circular polarization of terahertz light by an ultrathin sample of tungsten ditelluride. Credit: Nano Letters (2024). DOI: 10.1021/acs.nanolett.4c00758

While taking snapshots with the high-speed electron camera at the Department of Energy’s SLAC National Acceleratory Laboratory, researchers discovered new behavior in an ultrathin material that offers a promising approach to manipulating light that will be useful for devices that detect, control or emit light, collectively known as optoelectronic devices, and investigating how light is polarized within a material. Optoelectronic devices are used in many technologies that touch our daily lives, including light-emitting diodes (LEDs), optical fibers and medical imaging.

As reported in Nano Letters, the team, led by SLAC and Stanford professor Aaron Lindenberg, found that when oriented in a specific direction and subjected to linear terahertz radiation, an ultrathin film of tungsten ditelluride, which has desirable properties for polarizing light used in optical devices, circularly polarizes the incoming light.

Terahertz radiation lies between the microwave and the infrared regions in the electromagnetic spectrum and enables novel ways of both characterizing and controlling the properties of materials. Scientists would like to figure out a way to harness that light for the development of future optoelectronic devices.

Capturing a material’s behavior under terahertz light requires an advanced instrument capable of recording the interactions at ultrafast speeds, and SLAC’s world-leading instrument for ultrafast electron diffraction (MeV-UED) at the Linac Coherent Light Source (LCLS) can do just that.

Whereas the MeV-UED is normally used to visualize the motion of atoms by measuring how they scatter electrons after hitting a sample with an electron beam, this new work used the femtosecond electron pulses to visualize the electric and magnetic fields of the incoming terahertz pulses, which caused the electrons to wiggle back and forth. In the study, circular polarization was indicated by images of the electrons that showed a circular pattern rather than a straight line

High-speed electron camera uncovers a new 'light-twisting' behavior in an ultrathin material
This illustration shows how the electrons moved in a circular pattern (right) after the thin material (center) was hit with linearly polarized terahertz radiation (left). Credit: Nano Letters (2024). DOI: 10.1021/acs.nanolett.4c00758

The ultrathin material was a mere 50 nanometers thick. “This is 1,000 to 10,000 times thinner than what we typically need to induce this type of response,” said Lindenberg.

See also  One-step, high-speed, thermal-electric aerosol printing of piezoelectric bio-organic films

Researchers are excited about using these ultrathin materials, known as two-dimensional (2D) materials, to make optoelectronic devices smaller and capable of more functions. They envision creating devices from layers of 2D structures, like stacking Legos, Lindenberg said. Each 2D structure would be composed of a different material, precisely aligned to generate a specific type of optical response. These different structures and functionalities can be combined into compact devices that could find potential applications—for example, in medical imaging or other types of optoelectronic devices.

“This work represents another element in our toolbox for manipulating terahertz light fields, which in turn could allow for new ways to control materials and devices in interesting ways,” said Lindenberg.

Provided by
SLAC National Accelerator Laboratory



Source link

behavior camera electron highspeed lighttwisting Material UltraThin uncovers
Share. Facebook Twitter Pinterest LinkedIn Tumblr Email

Related Posts

A new molecular model of bilayer graphene with higher semiconducting properties

May 31, 2025

5 Nanomaterial Innovations That Didn’t Deliver (Yet)

May 30, 2025

Scientists identify new 2D copper boride material with unique atomic structure

May 30, 2025

Nanoscale biosensor lets scientists monitor molecules in real time

May 30, 2025

How should we govern nanotechnology?

May 29, 2025

The Future of Needle-Free Immunization

May 28, 2025

Comments are closed.

Top Articles
News

How Is Silicon Carbide Used in Semiconductors?

News

Fluorination strategy unlocks graphene’s potential for optoelectronic and energy applications

News

Decoding nanomaterial phase transitions with tiny drums

Editors Picks

A new molecular model of bilayer graphene with higher semiconducting properties

May 31, 2025

5 Nanomaterial Innovations That Didn’t Deliver (Yet)

May 30, 2025

Scientists identify new 2D copper boride material with unique atomic structure

May 30, 2025

New contact lenses allow wearers to see in the near-infrared

May 30, 2025
About Us
About Us

Your go-to source for the latest nanotechnology breakthroughs. Explore innovations, applications, and implications shaping the future at the molecular level. Stay informed, embrace the nano-revolution.

We're accepting new partnerships right now.

Facebook X (Twitter) Instagram Pinterest
Our Picks

Scaling Up the Power of Nanotechnology – Scientists Develop New Conceptual Nanomaterial With Huge Potential

November 21, 2023

What Are the Applications of Nanoceramics?

August 20, 2024

Angle-dependent holograms made possible by metasurfaces

February 29, 2024

Subscribe to Updates

Get the latest creative Nano Tech news from Elnano.com

© 2025 Elnano.com - All rights reserved.
  • Contact
  • Privacy Policy
  • Terms & Conditions

Type above and press Enter to search. Press Esc to cancel.

Cleantalk Pixel