Nanotechnology Now

Our NanoNews Digest Sponsors
Heifer International



Home > Press > Spin photonics to move forward with new anapole probe

CREDIT
by Fanfei Meng, Aiping Yang, Kang Du, Fengyang Jia, Xinrui Lei, Ting Mei, Luping Du, and Xiaocong Yuan
CREDIT by Fanfei Meng, Aiping Yang, Kang Du, Fengyang Jia, Xinrui Lei, Ting Mei, Luping Du, and Xiaocong Yuan

Abstract:
Topological nontrivial spin textures are intriguing in various physical systems, ranging from high energy to condensed matter physics. The magnetic Skyrmions formed by a swirling magnetization in magnetic materials have potential applications in high-density magnetic information storage and transfer. Moreover, photonic analogues of magnetic Skyrmions were proposed and demonstrated recently in both 2D and 3D forms. The deep-subwavelength features of spin structures provide novel tools for optical metrology, including high-precision displacement sensing and monitoring of magnetic domains.

Spin photonics to move forward with new anapole probe

Changchun, China | Posted on November 4th, 2022

In a new paper published in Light Science & Applications, a team of scientists led by Professors Luping Du and Xiaocong Yuan from Shenzhen University have developed a unique anapole probe to measure the photonic spin structures dominated by magnetic fields. Their paper, "Measuring the magnetic topological spin structure of light using an anapole probe," indicated that their proposed methods could be valuable in advancing spin photonics.

The previous Skyrmion structures of light were observed in surface plasmon polaritons with electric fields dominating their wave properties. Many approaches have been proposed to map the electric-field distributions at near field, including fluorescence imaging, photoemission electron microscopy and near-field scanning optical microscopy (NSOM) with fiber probes or nanoscatters.

In addition to the electric part in optical spin, the magnetic part is essential for transverse electric (TE) modes (H-type waves). Although several near-field mapping techniques have been developed for characterizing the magnetic fields, either using an NSOM probe with specific apex or high refractive index nanoparticles, they succumb to inevitable influences from the electric field. It would affect the vector properties of the measured magnetic field and impair the system's robustness in characterizing the topological spin properties associated with the magnetic fields. The anapole mode of nanoparticles with pure magnetic field response might be a great solution. It has drawn much attention to near-field optics and nano-optics.

The researchers proposed a unique magnetic probe with an anapole mode (hereafter named the anapole probe). It would help measure the topological spin structures of evanescent waves governed by magnetic fields. The probe comprises an Ag-core and Si-shell nanosphere, for which the excited electric dipole and toroidal dipole modes experience destructive interference. The anapole forms the anapole mode and suppresses scattered radiation caused by electric fields. This anapole mode overlaps with a strong magnetic dipole resonance, which guarantees a high detection efficiency of the magnetic field.

A home-built near-field scanning system utilizing the anapole probe was assembled and with which the magnetic topological spin structures of the TE mode were characterized for the first time, including individual photonic Skyrmions and Skyrmion/Meron lattices. With high sensitivity and precision, the proposed method may become a valuable tool for studying the underlying physical processes related to the magnetic field components of light and facilitate the development of applications, including data storage, metrology, optical tweezers, and chiral nanoscopy.

####

For more information, please click here

Contacts:
Media Contact

Yaobiao Li
Light Publishing Center, Changchun Institute of Optics, Fine Mechanics And Physics, CAS

Office: 86-431-861-76851
Expert Contact

Luping Du
Shenzhen University, China

Copyright © Light Publishing Center, Changchun Institute of Optics, Fine Mechanics And Physics, CAS

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

Paper:

Related News Press

News and information

Chung-Ang University researchers develop novel DNA biosensor for early diagnosis of cervical cancer: The electrochemical sensor, made of a graphitic nano-onion/molybdenum disulfide nanosheet composite, detects human papillomavirus (HPV)-16 and HPV-18, with high specificity September 8th, 2023

New compound unleashes the immune system on metastases September 8th, 2023

Machine learning contributes to better quantum error correction September 8th, 2023

Tests find no free-standing nanotubes released from tire tread wear September 8th, 2023

2 Dimensional Materials

University of Chicago scientists invent smallest known way to guide light: 2D optical waveguides could point way to new technology August 11th, 2023

Ribbons of graphene push the materialís potential: A new technique developed at Columbia offers a systematic evaluation of twist angle and strain in layered 2D materials August 11th, 2023

Two types of ultrafast mode-locking operations generation from an Er-doped fiber laser based on germanene nanosheets July 21st, 2023

Understanding the diverse industrial applications of materials science: Materials Science A Field of Diverse Industrial Applications July 21st, 2023

Magnetism/Magnons

Researchers discover materials exhibiting huge magnetoresistance June 9th, 2023

Rensselaer researcher uses artificial intelligence to discover new materials for advanced computing Trevor Rhone uses AI to identify two-dimensional van der Waals magnets May 12th, 2023

Make them thin enough, and antiferroelectric materials become ferroelectric February 10th, 2023

New era of two-dimensional ferroelectrics: Reviewing layered van-der-Waals ferroelectrics for future nanoelectronics October 28th, 2022

Skyrmions

Search for strange Skyrmion phenomenon fails but finds stranger magnetic beaded necklace: Physicists on the hunt for a rarely seen magnetic spin texture have discovered another object that bears its hallmarks, hidden in the structure of ultra-thin magnetic films, that they have c April 2nd, 2021

The ICN2 co-leads a roadmap on quantum materials September 29th, 2020

Discovery may lead to new materials for next-generation data storage: Army-funded research demonstrates emergent chirality in polar skyrmions for the first time in oxide superlattices May 10th, 2019

Electric skyrmions charge ahead for next-generation data storage: Berkeley Lab-led research team makes a chiral skyrmion crystal with electric properties; puts new spin on future information storage applications April 18th, 2019

Possible Futures

Chung-Ang University researchers develop novel DNA biosensor for early diagnosis of cervical cancer: The electrochemical sensor, made of a graphitic nano-onion/molybdenum disulfide nanosheet composite, detects human papillomavirus (HPV)-16 and HPV-18, with high specificity September 8th, 2023

New compound unleashes the immune system on metastases September 8th, 2023

Machine learning contributes to better quantum error correction September 8th, 2023

Tests find no free-standing nanotubes released from tire tread wear September 8th, 2023

Spintronics

Researchers discover a potential application of unwanted electronic noise in semiconductors: Random telegraph noises in vanadium-doped tungsten diselenide can be tuned with voltage polarity August 11th, 2023

Quantum materials: Electron spin measured for the first time June 9th, 2023

Rensselaer researcher uses artificial intelligence to discover new materials for advanced computing Trevor Rhone uses AI to identify two-dimensional van der Waals magnets May 12th, 2023

Novel nanowire fabrication technique paves way for next generation spintronics November 4th, 2022

Chip Technology

University of Chicago scientists invent smallest known way to guide light: 2D optical waveguides could point way to new technology August 11th, 2023

Researchers discover a potential application of unwanted electronic noise in semiconductors: Random telegraph noises in vanadium-doped tungsten diselenide can be tuned with voltage polarity August 11th, 2023

The present and future of computing get a boost from new research July 21st, 2023

Scientists edge toward scalable quantum simulations on a photonic chip: A system using photonics-based synthetic dimensions could be used to help explain complex natural phenomena June 30th, 2023

Optical computing/Photonic computing

Chung-Ang University researchers develop novel DNA biosensor for early diagnosis of cervical cancer: The electrochemical sensor, made of a graphitic nano-onion/molybdenum disulfide nanosheet composite, detects human papillomavirus (HPV)-16 and HPV-18, with high specificity September 8th, 2023

University of Chicago scientists invent smallest known way to guide light: 2D optical waveguides could point way to new technology August 11th, 2023

Scientists edge toward scalable quantum simulations on a photonic chip: A system using photonics-based synthetic dimensions could be used to help explain complex natural phenomena June 30th, 2023

USTC enhances fluorescence brightness of single silicon carbide spin color centers June 9th, 2023

Sensors

Electron collider on a chip June 30th, 2023

Researchers discover materials exhibiting huge magnetoresistance June 9th, 2023

Laser direct writing of Ga2O3/liquid metal-based flexible humidity sensors May 12th, 2023

Nanobiotechnology: How Nanomaterials Can Solve Biological and Medical Problems April 14th, 2023

Discoveries

Electronic detection of DNA nanoballs enables simple pathogen detection Peer-Reviewed Publication September 8th, 2023

Training quantum computers: physicists win prestigious IBM Award September 8th, 2023

Unlocking quantum potential: Harnessing high-dimensional quantum states with QDs and OAM: Generation of nearly deterministic OAM-based entangled states offers a bridge between photonic technologies for quantum advancements September 8th, 2023

Tests find no free-standing nanotubes released from tire tread wear September 8th, 2023

Announcements

Electronic detection of DNA nanoballs enables simple pathogen detection Peer-Reviewed Publication September 8th, 2023

Training quantum computers: physicists win prestigious IBM Award September 8th, 2023

Machine learning contributes to better quantum error correction September 8th, 2023

Tests find no free-standing nanotubes released from tire tread wear September 8th, 2023

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

Electronic detection of DNA nanoballs enables simple pathogen detection Peer-Reviewed Publication September 8th, 2023

Unlocking quantum potential: Harnessing high-dimensional quantum states with QDs and OAM: Generation of nearly deterministic OAM-based entangled states offers a bridge between photonic technologies for quantum advancements September 8th, 2023

Chung-Ang University researchers develop novel DNA biosensor for early diagnosis of cervical cancer: The electrochemical sensor, made of a graphitic nano-onion/molybdenum disulfide nanosheet composite, detects human papillomavirus (HPV)-16 and HPV-18, with high specificity September 8th, 2023

New compound unleashes the immune system on metastases September 8th, 2023

Photonics/Optics/Lasers

Unlocking quantum potential: Harnessing high-dimensional quantum states with QDs and OAM: Generation of nearly deterministic OAM-based entangled states offers a bridge between photonic technologies for quantum advancements September 8th, 2023

Chung-Ang University researchers develop novel DNA biosensor for early diagnosis of cervical cancer: The electrochemical sensor, made of a graphitic nano-onion/molybdenum disulfide nanosheet composite, detects human papillomavirus (HPV)-16 and HPV-18, with high specificity September 8th, 2023

University of Chicago scientists invent smallest known way to guide light: 2D optical waveguides could point way to new technology August 11th, 2023

Ultrafast lasers for materials processing August 11th, 2023

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