Skip to main content

Condensed Matter > Mesoscale and Nanoscale Physics

arXiv:2507.22232 (cond-mat)
[Submitted on 29 Jul 2025]

Title:Ultrafast Faraday Rotation Probe of Chiral Phonon-Polaritons in LiNbO3

Authors:Megan F. Biggs, Sin-hang (Enoch)Ho, Aldair Alejandro, Matthew Lutz, Clayton D. Moss, Jeremy A. Johnson
View PDF
Abstract:Time reversal symmetry breaking motion of chiral phonon-polaritons in LiNbO3 is probed via the ultrafast Faraday effect. By combining a pair of perpendicularly polarized THz pulses with the right relative delay, we create a chiral THz driving field to excite chiral phonon-polaritons. The chiral atomic motion combines with the inverse Faraday effect from the circularly polarized THz pump to induce a magnetic moment field in the nonmagnetic material, LiNbO3. We attempt to quantify the strength of the magnetic field with Faraday rotation probe measurements. The direction of the Faraday signal flips when the input THz pulse is changed from left- to right-circular polarization, and we estimate a strong induced magnetic field strength of ~11 Tesla based on the Faraday rotation.
Comments: 15 pages, 11 figures
Subjects: Mesoscale and Nanoscale Physics (cond-mat.mes-hall); Applied Physics (physics.app-ph)
Cite as: arXiv:2507.22232 [cond-mat.mes-hall]
  (or arXiv:2507.22232v1 [cond-mat.mes-hall] for this version)
  https://doi.org/10.48550/arXiv.2507.22232

Submission history

From: Jeremy Johnson [view email]
[v1] Tue, 29 Jul 2025 21:00:40 UTC (2,047 KB)
Full-text links:

Access Paper:

  • View PDF
license icon view license

Current browse context:

cond-mat.mes-hall
< prev   |   next >
new | recent | 2025-07
Change to browse by:
cond-mat
physics
physics.app-ph

References & Citations

Bookmark

BibSonomy Reddit

Bibliographic and Citation Tools

Bibliographic Explorer (What is the Explorer?)
Connected Papers (What is Connected Papers?)
Litmaps (What is Litmaps?)
scite Smart Citations (What are Smart Citations?)

Code, Data and Media Associated with this Article

alphaXiv (What is alphaXiv?)
CatalyzeX Code Finder for Papers (What is CatalyzeX?)
DagsHub (What is DagsHub?)
Gotit.pub (What is GotitPub?)
Hugging Face (What is Huggingface?)
ScienceCast (What is ScienceCast?)

Demos

Replicate (What is Replicate?)
Hugging Face Spaces (What is Spaces?)
TXYZ.AI (What is TXYZ.AI?)

Recommenders and Search Tools

Influence Flower (What are Influence Flowers?)
CORE Recommender (What is CORE?)
IArxiv Recommender (What is IArxiv?)

arXivLabs: experimental projects with community collaborators

arXivLabs is a framework that allows collaborators to develop and share new arXiv features directly on our website.

Both individuals and organizations that work with arXivLabs have embraced and accepted our values of openness, community, excellence, and user data privacy. arXiv is committed to these values and only works with partners that adhere to them.

Have an idea for a project that will add value for arXiv's community? Learn more about arXivLabs.

Which authors of this paper are endorsers? | Disable MathJax (What is MathJax?)