• About us
  • Contact
Friday, September 22, 2023
No Result
View All Result
NEWSLETTER
Times Of Nation
-18 °c
  • Top Stories
  • Genetics
  • Environment
  • Wildlife
  • Outer space
    James Webb Space Telescope detects 1st evidence of carbon on Jupiter’s icy moon Europa

    James Webb Space Telescope detects 1st evidence of carbon on Jupiter’s icy moon Europa

    If You Could See Gravitational Waves, the Universe Would Look Like This

    If You Could See Gravitational Waves, the Universe Would Look Like This

    See Artemis 2 astronauts explore moon-like crater in Canada (photos)

    See Artemis 2 astronauts explore moon-like crater in Canada (photos)

    What time is NASA’s OSIRIS-REx asteroid sample return capsule landing on Sept. 24?

    What time is NASA’s OSIRIS-REx asteroid sample return capsule landing on Sept. 24?

    Autumnal equinox 2023 brings fall to the Northern Hemisphere this weekend

    Autumnal equinox 2023 brings fall to the Northern Hemisphere this weekend

    Solar Sails Could Reach Mars in Just 26 Days

    Solar Sails Could Reach Mars in Just 26 Days

    FAA proposes rule to reduce space junk in Earth orbit

    FAA proposes rule to reduce space junk in Earth orbit

    We need a better way to map Earth’s magnetic field. Finding it could win 1 of these teams  million

    We need a better way to map Earth’s magnetic field. Finding it could win 1 of these teams $2 million

    NASA’s Perseverance Rover is Setting Records on Mars

    NASA’s Perseverance Rover is Setting Records on Mars

  • Physics
    Theoretical study shows that Kerr black holes could amplify new physics

    Theoretical study shows that Kerr black holes could amplify new physics

    Exploring the relationship between thermalization dynamics and quantum criticality in lattice gauge theories

    Exploring the relationship between thermalization dynamics and quantum criticality in lattice gauge theories

    Unraveling the mysteries of glassy liquids

    Unraveling the mysteries of glassy liquids

    Trending Tags

    • geophysics
    • quantum
    • physicists
    • physiology
    • physical
    • holography
  • Top Stories
  • Genetics
  • Environment
  • Wildlife
  • Outer space
    James Webb Space Telescope detects 1st evidence of carbon on Jupiter’s icy moon Europa

    James Webb Space Telescope detects 1st evidence of carbon on Jupiter’s icy moon Europa

    If You Could See Gravitational Waves, the Universe Would Look Like This

    If You Could See Gravitational Waves, the Universe Would Look Like This

    See Artemis 2 astronauts explore moon-like crater in Canada (photos)

    See Artemis 2 astronauts explore moon-like crater in Canada (photos)

    What time is NASA’s OSIRIS-REx asteroid sample return capsule landing on Sept. 24?

    What time is NASA’s OSIRIS-REx asteroid sample return capsule landing on Sept. 24?

    Autumnal equinox 2023 brings fall to the Northern Hemisphere this weekend

    Autumnal equinox 2023 brings fall to the Northern Hemisphere this weekend

    Solar Sails Could Reach Mars in Just 26 Days

    Solar Sails Could Reach Mars in Just 26 Days

    FAA proposes rule to reduce space junk in Earth orbit

    FAA proposes rule to reduce space junk in Earth orbit

    We need a better way to map Earth’s magnetic field. Finding it could win 1 of these teams  million

    We need a better way to map Earth’s magnetic field. Finding it could win 1 of these teams $2 million

    NASA’s Perseverance Rover is Setting Records on Mars

    NASA’s Perseverance Rover is Setting Records on Mars

  • Physics
    Theoretical study shows that Kerr black holes could amplify new physics

    Theoretical study shows that Kerr black holes could amplify new physics

    Exploring the relationship between thermalization dynamics and quantum criticality in lattice gauge theories

    Exploring the relationship between thermalization dynamics and quantum criticality in lattice gauge theories

    Unraveling the mysteries of glassy liquids

    Unraveling the mysteries of glassy liquids

    Trending Tags

    • geophysics
    • quantum
    • physicists
    • physiology
    • physical
    • holography
No Result
View All Result
Times Of Nation
No Result
View All Result
bayan çanta
Home Physics

Precision machining produces tiny, light-guiding cubes for advancing info tech

by TimesOfNation
January 30, 2022
in Physics
Precision machining produces tiny, light-guiding cubes for advancing info tech
2
SHARES
12
VIEWS
Share on FacebookShare on Twitter

Precision machining produces tiny, light-guiding cubes for advancing info tech- Times Of Nation

RelatedArticles

Theoretical study shows that Kerr black holes could amplify new physics

Exploring the relationship between thermalization dynamics and quantum criticality in lattice gauge theories

Unraveling the mysteries of glassy liquids

ORNL scientists used an electron beam for precision machining of nanoscale materials. Cubes were milled to change their shape and could also be removed from an array. Credit- Kevin Roccapriore/ORNL, U.S. Dept. of Energy

Drilling with the beam of an electron microscope, scientists at the Department of Energy’s Oak Ridge National Laboratory precisely machined tiny electrically conductive cubes that can interact with light and organized them in patterned structures that confine and relay light’s electromagnetic signal. This demonstration is a step toward potentially faster computer chips and more perceptive sensors.

The seeming wizardry of these structures comes from the ability of their surfaces to support collective waves of electrons, called plasmons, with the same frequency as light waves but with much tighter confinement. The light-guiding structures are measured in nanometers, or billionths of a meter—100,000 times thinner than a human hair.

“These nanoscale cube systems allow extreme confinement of light in specific locations and tunable control of its energy,” said ORNL’s Kevin Roccapriore, first author of a study published in the journal Small. “It’s a way to connect signals with very different length scales.”

The feat may prove critical for quantum and optical computing. Quantum computers encode information with quantum bits, or qubits, determined by a quantum state of a particle, such as its spin. Qubits can store many values compared with the single value stored by a classical bit.

Light—electromagnetic radiation that propagates by massless elementary particles called photons—replaces electrons as the messenger in optical computers. Because photons travel faster than electrons and do not generate heat, optical computers could have performance and energy efficiency superior to classical computers.

Precision machining produces tiny, light-guiding cubes for advancing info tech
An electron beam imparts energy that moves or sculpts building blocks in an array. The designer blocks guide undulating clouds of electrons called plasmons. Credit- Kevin Roccapriore/ORNL, U.S. Dept. of Energy

Future technologies may use the best of both worlds.

“Light is the preferred way to communicate with qubits, but you cannot connect contacts to them directly,” said senior author Sergei Kalinin of ORNL. “The problem with visible light is its wavelengths range from about 380 nanometers for violet to around 700 nanometers for red. That’s too big because we want to make devices only a few nanometers in size. This work aims to create a framework to move technology beyond Moore’s law and classical electronics. If you try to put ‘light’ and ‘small’ together, that’s exactly where plasmonics comes into play.”

And if there’s a great future in plasmonics, the ORNL-led achievement may help overcome a signal size mismatch that threatens the integration of components made of different materials. Those hybrid components will need to “talk” to each other in next-generation optoelectronic devices. Plasmonics may bridge the gap.

Plasmonic phenomena were first observed in metals, which are conductive because of their free electrons. The ORNL team used cubes made of a transparent semiconductor that behaves like a metal—indium oxide doped with tin and fluorine.

The fact that the cube is a semiconductor is the key to its energy tunability. The energy of a light wave is related to its frequency. The higher the frequency, the shorter the wavelength. Wavelengths of visible light appear to the human eye as colors. Because a semiconductor can be doped—that is, a small impurity can be added—its wavelength can be shifted on the spectrum.

Precision machining produces tiny, light-guiding cubes for advancing info tech
Each cube shown has its own plasmonic behavior. Bring them together in patterns—an antenna, left image, or split ring resonator, right image—and they “talk,” producing unique effects. Credit- Kevin Roccapriore/ORNL, U.S. Dept. of Energy

The study’s cubes were each 10 nanometers wide, which is much smaller than the wavelength of visible light. Synthesized at the University of Texas at Austin by Shin-Hum Cho and Delia Milliron, the cubes were placed in a detergent to prevent clumping and pipetted onto a substrate, where they self-assembled into a two-dimensional array. A shell of detergent surrounded each cube, spacing them apart evenly. After the detergent was removed, the arrays were sent to ORNL.

“That the cubes do not directly touch is important for the collective behavior,” said Roccapriore, who organized the cubes into diverse structures. “Each cube individually has its own plasmon behavior. When we bring them together in geometries like a nanowire, they talk to one another and produce new effects that are not typically seen in similar geometries that aren’t made up of individual elements.”

The study builds on prior work to sculpt three-dimensional structures as small as a nanometer with an electron beam. “The current paper proves that the plasmonic effect, as well as the structure, can be sculpted,” Roccapriore said. “At the end of the day, we’re interested in the electron wave—where is it and what is its energy? We’re controlling those two things.”

Kalinin added, “We want to transition from using what exists in nature by chance to fabricating materials with the right responses. We can take a system of cubes, shine light on it and channel energy into small volumes localized exactly where we want them to be.”

The project was a natural for Roccapriore, who conducted a lot of electron-beam lithography in graduate school and even built a machine in his garage to make and mill 3D-printed structures. At ORNL, experimenting with the beam of an electron microscope, he adjusted its current to intentionally shift from imaging to modification mode. He found he could remove bits of cubes or entire cubes from an array to make patterned objects at will. He also discovered that, just like addition of chemical elements enables tuning of cube energies, so too does selective removal of chemical elements. Such atomic precision is possible with scanning transmission electron microscopy, or STEM.






https-//www.youtube.com/watch?v=AUf7FW633n0

Credit- Oak Ridge National Laboratory

The key to characterizing plasmonic behavior within single cubes and among collective cube assemblies was a technique called electron energy loss spectroscopy. It uses a STEM instrument with an electron beam filtered to energies within a narrow range. The beam loses energy as its electrons pass through the sample, interact with electrons in the material and transfer a little energy to the system by exciting plasmons.

“Electron energy loss spectroscopy provides deep insights into exotic physics and quantum phenomena related to plasmonic behavior,” said co-author Andrew Lupini of ORNL, who helped map the energies of electrons in the cubes and arrays of cubes. Lupini is one of the developers of aberration-corrected STEM, which made pioneering advances possible. “Electron energy loss spectroscopy lets us analyze evolving plasmonic responses in real time as the cubes are sculpted. We can figure out relationships between arrangements of cubes and their plasmonic properties.”

The scientists plan to create a library of relationships between materials, structures and plasmonic properties. That new knowledge will provide the foundational understanding needed to eventually mass-produce structures that can direct the flow of light in plasmonic nanocircuits. According to Roccapriore, “the idea is to understand the relationships using machine learning and then automate the process.”


Integrated photonics meets electron microscopy


More information-
Kevin M. Roccapriore et al, Sculpting the Plasmonic Responses of Nanoparticles by Directed Electron Beam Irradiation, Small (2021). DOI- 10.1002/smll.202105099

Journal information-
Small

Provided by
Oak Ridge National Laboratory

Citation–
Precision machining produces tiny, light-guiding cubes for advancing info tech (2022, January 28)
retrieved 30 January 2022
from https-//phys.org/news/2022-01-precision-machining-tiny-light-guiding-cubes.html

This document is subject to copyright. Apart from any fair dealing for the purpose of private study or research, no
part may be reproduced without the written permission. The content is provided for information purposes only.

(News Source -Except for the headline, this story has not been edited by Times Of Nation staff and is published from a phys.org feed.)

Read Also- Latest News | Current Affairs News | Today News | English News | World News Today

TimesofNation.com offer news and information like- English newspaper today | today English news | English news live | times India | today news in English in India | breaking news in India today | India TV news today & Hindustan News.

You can Read on TimesofNation.com latest news today, breaking news headlines, Top news. Discover national and international news on economy, politics, defence, sports, world news & other relatively current affair’s news.

Tags: advancingcubesinfolightguidingmachiningprecisionproducestechTiny
Plugin Install : Subscribe Push Notification need OneSignal plugin to be installed.
TimesOfNation

TimesOfNation

Related Posts

Spacecraft Could be Equipped With Tiny Thrusters That Use Water for Propellant

Spacecraft Could be Equipped With Tiny Thrusters That Use Water for Propellant

by TimesOfNation
September 20, 2023
4

Spacecraft Could be Equipped With Tiny Thrusters That Use Water for Propellant: Times Of Nation Engineers working with the European...

Mars Society proposes institute to develop tech needed for Red Planet settlement

Mars Society proposes institute to develop tech needed for Red Planet settlement

by TimesOfNation
September 19, 2023
3

Mars Society proposes institute to develop tech needed for Red Planet settlement: Times Of Nation As a new era of...

Tiny Swarming Spacecraft Could Establish Communications with Proxima Centauri

Tiny Swarming Spacecraft Could Establish Communications with Proxima Centauri

by TimesOfNation
September 18, 2023
7

Tiny Swarming Spacecraft Could Establish Communications with Proxima Centauri: Times Of Nation Achieving interstellar travel has been the dream of...

Every Night and Every Morning, the Moon Rumbles With Tiny Quakes

Every Night and Every Morning, the Moon Rumbles With Tiny Quakes

by TimesOfNation
September 10, 2023
2

Every Night and Every Morning, the Moon Rumbles With Tiny Quakes: Times Of Nation The Moon was geologically active between...

Tiny satellites use AI to sniff for methane leaks on the ground (photos)

Tiny satellites use AI to sniff for methane leaks on the ground (photos)

by TimesOfNation
September 6, 2023
1

Tiny satellites use AI to sniff for methane leaks on the ground (photos): Times Of Nation California-based Earth-observation startup Orbital...

Illuminating new horizons: Navigating nonlinear scattering with precision

Illuminating new horizons: Navigating nonlinear scattering with precision

by TimesOfNation
September 1, 2023
2

Illuminating new horizons- Navigating nonlinear scattering with precision- Times Of Nation Scattering matrix method controls nonlinear light in scattering media....

Next Post
Study reveals topology at the corner of the dining table

Study reveals topology at the corner of the dining table

Leave a Reply Cancel reply

Your email address will not be published. Required fields are marked *

I agree to the Terms & Conditions and Privacy Policy.

Recommended

Online casino no deposit, online casino no deposit bonus

2 weeks ago
0
SpaceX crew capsule brings astronauts home after nearly 200 days in orbit – Spaceflight Now

SpaceX crew capsule brings astronauts home after nearly 200 days in orbit – Spaceflight Now

2 years ago
25

Popular News

  • Kauvery Hospital, Radial Road, Launches “Institute of Brain & Spine”

    Kauvery Hospital, Radial Road, Launches “Institute of Brain & Spine”

    2 shares
    Share 1 Tweet 1
  • Lotpot 2.0 Collaborates with Zee Studios for Gadar 2

    1 shares
    Share 0 Tweet 0
  • Quiet cables set to help reveal rare physics events

    1 shares
    Share 0 Tweet 0
  • Veligonda project works not fast enough, may miss December deadline: farmers

    1 shares
    Share 0 Tweet 0
  • ISRO May Postpone Chandrayaan-3 Lunar Touchdown Based on These Factors

    1 shares
    Share 0 Tweet 0

About

Times Of Nation

timesofnation.com is a dedicated news website for core sciences, technology, medical research and health news along with current affairs coverage from India. the timesofnation.com website is one of the fast growing online communities for science-minded people....Read more

Category

  • Business News
  • Environment
  • Genetics
  • India
  • Outer space
  • Physics
  • Wildlife

Site Links

  • Corrections Policy
  • Fact Checking Policy
  • Terms of Service
  • Privacy Policy

Contact Us

Email us to send your suggestions
editor[@]timesofnation.com
Send articles and news to editor[@]timesofnation.com
For other enquiries: admin[@]timesofnation.com
If you find any content violating the editorial code of conduct mail to editor[@]timesofnation.com.

  • Corrections Policy
  • Fact Checking Policy
  • Terms of Service
  • Privacy Policy

© 2021 Times of Nation. All rights reserved.

ankara escort çankaya escort çankaya escort escort bayan çankaya istanbul rus escort eryaman escort ankara escort kızılay escort istanbul escort ankara escort ankara escort escort ankara istanbul rus Escort atasehir Escort beylikduzu Escort Ankara Escort malatya Escort kuşadası Escort gaziantep Escort izmir Escort
No Result
View All Result
  • Home
  • Genetics
  • Environment
  • Wildlife
  • Outer space
  • Physics

© 2021 Times of Nation. All rights reserved.

Login to your account below

Forgotten Password? Sign Up

Fill the forms bellow to register

All fields are required. Log In

Retrieve your password

Please enter your username or email address to reset your password.

Log In
This website uses cookies. By continuing to use this website you are giving consent to cookies being used. Visit our Privacy and Cookie Policy.