Details
| Originalsprache | Englisch |
|---|---|
| Aufsatznummer | 083010 |
| Fachzeitschrift | New journal of physics |
| Jahrgang | 26 |
| Ausgabenummer | 8 |
| Publikationsstatus | Veröffentlicht - 12 Aug. 2024 |
| Extern publiziert | Ja |
Abstract
That light propagating in a gravitational field gets frequency-shifted is one of the basic consequences of any metric theory of gravity rooted in the equivalence principle. At the same time, also a time dependent material’s refractive index can frequency-shift light propagating in it. The mathematical analogy between the two effects is such that the latter has been used to study the optical analogue of a black-hole spacetime. Here, we combine these two effects by showing that light propagation in non-linear media in the presence of a moving refractive index perturbation can lead to a gravity-dependent blueshift. We find that the predicted blueshift surpasses the gravitational redshift even if the medium is considered to be perfectly stiff. In realistic scenarios, by far the strongest frequency shift arises due to the deformation of the dielectric medium and the corresponding photoelastic change of refractive index. This has the potential to facilitate optical sensing of small gravity gradients.
ASJC Scopus Sachgebiete
- Physik und Astronomie (insg.)
- Allgemeine Physik und Astronomie
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in: New journal of physics, Jahrgang 26, Nr. 8, 083010, 12.08.2024.
Publikation: Beitrag in Fachzeitschrift › Artikel › Forschung › Peer-Review
}
TY - JOUR
T1 - Non-linear media in weakly curved spacetime: optical solitons and probe pulses for gravimetry
AU - Belenchia, Alessio
AU - Spengler, Felix
AU - Rätzel, Dennis
AU - Braun, Daniel
N1 - Publisher Copyright: © 2024 The Author(s). Published by IOP Publishing Ltd on behalf of the Institute of Physics and Deutsche Physikalische Gesellschaft.
PY - 2024/8/12
Y1 - 2024/8/12
N2 - That light propagating in a gravitational field gets frequency-shifted is one of the basic consequences of any metric theory of gravity rooted in the equivalence principle. At the same time, also a time dependent material’s refractive index can frequency-shift light propagating in it. The mathematical analogy between the two effects is such that the latter has been used to study the optical analogue of a black-hole spacetime. Here, we combine these two effects by showing that light propagation in non-linear media in the presence of a moving refractive index perturbation can lead to a gravity-dependent blueshift. We find that the predicted blueshift surpasses the gravitational redshift even if the medium is considered to be perfectly stiff. In realistic scenarios, by far the strongest frequency shift arises due to the deformation of the dielectric medium and the corresponding photoelastic change of refractive index. This has the potential to facilitate optical sensing of small gravity gradients.
AB - That light propagating in a gravitational field gets frequency-shifted is one of the basic consequences of any metric theory of gravity rooted in the equivalence principle. At the same time, also a time dependent material’s refractive index can frequency-shift light propagating in it. The mathematical analogy between the two effects is such that the latter has been used to study the optical analogue of a black-hole spacetime. Here, we combine these two effects by showing that light propagation in non-linear media in the presence of a moving refractive index perturbation can lead to a gravity-dependent blueshift. We find that the predicted blueshift surpasses the gravitational redshift even if the medium is considered to be perfectly stiff. In realistic scenarios, by far the strongest frequency shift arises due to the deformation of the dielectric medium and the corresponding photoelastic change of refractive index. This has the potential to facilitate optical sensing of small gravity gradients.
KW - analog gravity
KW - curved spacetime
KW - gravimetry
KW - non-linear media
KW - optical solitons
UR - http://www.scopus.com/inward/record.url?scp=85201404857&partnerID=8YFLogxK
U2 - 10.1088/1367-2630/ad678d
DO - 10.1088/1367-2630/ad678d
M3 - Article
AN - SCOPUS:85201404857
VL - 26
JO - New journal of physics
JF - New journal of physics
SN - 1367-2630
IS - 8
M1 - 083010
ER -