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Fano resonance between Stokes and anti-Stokes Brillouin scattering

Lai, Kwan To ; Finkelstein-Shapiro, Daniel LU ; Lehmann, Sebastian LU ; Devos, Arnaud and Mante, Pierre-Adrien LU (2021) In Physical Review Research 3.
Abstract
In recent years, the manipulation of Fano resonances in the time domain has unlocked deep insights into a broad spectrum of systems' coherent dynamics. Here, inelastic scattering of light with coherent acoustic phonons is harnessed to achieve complex Fano resonances. The sudden change of phonon momentum during reflection leads to a transition from anti-Stokes to Stokes light scattering, producing two different resonances that interfere in the measurement process. We highlight the conditions necessary to achieve such interference, revealing an underlying symmetry between photons and phonons, and verify the theory experimentally. Then, we demonstrate the possibility to characterize energy and coherence losses at rough interfaces, thus... (More)
In recent years, the manipulation of Fano resonances in the time domain has unlocked deep insights into a broad spectrum of systems' coherent dynamics. Here, inelastic scattering of light with coherent acoustic phonons is harnessed to achieve complex Fano resonances. The sudden change of phonon momentum during reflection leads to a transition from anti-Stokes to Stokes light scattering, producing two different resonances that interfere in the measurement process. We highlight the conditions necessary to achieve such interference, revealing an underlying symmetry between photons and phonons, and verify the theory experimentally. Then, we demonstrate the possibility to characterize energy and coherence losses at rough interfaces, thus providing a mechanism for nondestructive testing of interface quality. Our results describe numerous unexplained observations in ultrafast acoustics and can be generalized to the scattering of light with any waves. (Less)
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author
; ; ; and
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Physical Review Research
volume
3
article number
L032010
pages
6 pages
publisher
American Physical Society
external identifiers
  • scopus:85114375834
ISSN
2643-1564
DOI
10.1103/PhysRevResearch.3.L032010
language
English
LU publication?
yes
id
7cb5801b-10ad-4fd3-8114-6ca15770e28a
date added to LUP
2022-01-13 09:24:28
date last changed
2023-11-09 02:58:06
@article{7cb5801b-10ad-4fd3-8114-6ca15770e28a,
  abstract     = {{In recent years, the manipulation of Fano resonances in the time domain has unlocked deep insights into a broad spectrum of systems' coherent dynamics. Here, inelastic scattering of light with coherent acoustic phonons is harnessed to achieve complex Fano resonances. The sudden change of phonon momentum during reflection leads to a transition from anti-Stokes to Stokes light scattering, producing two different resonances that interfere in the measurement process. We highlight the conditions necessary to achieve such interference, revealing an underlying symmetry between photons and phonons, and verify the theory experimentally. Then, we demonstrate the possibility to characterize energy and coherence losses at rough interfaces, thus providing a mechanism for nondestructive testing of interface quality. Our results describe numerous unexplained observations in ultrafast acoustics and can be generalized to the scattering of light with any waves.}},
  author       = {{Lai, Kwan To and Finkelstein-Shapiro, Daniel and Lehmann, Sebastian and Devos, Arnaud and Mante, Pierre-Adrien}},
  issn         = {{2643-1564}},
  language     = {{eng}},
  month        = {{07}},
  publisher    = {{American Physical Society}},
  series       = {{Physical Review Research}},
  title        = {{Fano resonance between Stokes and anti-Stokes Brillouin scattering}},
  url          = {{http://dx.doi.org/10.1103/PhysRevResearch.3.L032010}},
  doi          = {{10.1103/PhysRevResearch.3.L032010}},
  volume       = {{3}},
  year         = {{2021}},
}