Details
| Original language | English |
|---|---|
| Article number | 062002 |
| Journal | Physical Review D |
| Volume | 104 |
| Issue number | 6 |
| Publication status | Published - 15 Sept 2021 |
| Externally published | Yes |
Abstract
We theoretically investigate the influence of gravity on laser light in a plano concave, i.e., hemispherical optical cavity, operating on Earth. The propagation of light in such a cavity is modeled by a Gaussian beam, affected by the Earth's gravitational field. On laboratory scale, this field is described by the spacetime of homogeneous gravity, known as Rindler spacetime. In that spacetime, the beam is bent downwards and acquires a height dependent phase shift. As a consequence the phase fronts of the laser light differ from those of a usual Gaussian beam. Assuming that the initial beam enters the cavity along its symmetry axis, these gravitational effects cause variations of the beam phase with every cavity round trip. Detailed calculations are performed to investigate how these phase variations depend on the beam parameters and the cavity setup. Moreover, we discuss the implications of our findings for cavity calibration techniques and cavity-based laser stabilization procedures.
ASJC Scopus subject areas
- Physics and Astronomy(all)
- Physics and Astronomy (miscellaneous)
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In: Physical Review D, Vol. 104, No. 6, 062002, 15.09.2021.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Impact of Earth's gravity on Gaussian beam propagation in hemispherical cavities
AU - Ulbricht, S.
AU - Dickmann, J.
AU - Müller, R. A.
AU - Kroker, S.
AU - Surzhykov, A.
N1 - Funding information: The authors would like to thank Marcel Reginatto for helpful discussions. Funded by the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) under Germany’s Excellence Strategy—EXC-2123 QuantumFrontiers—390837967.
PY - 2021/9/15
Y1 - 2021/9/15
N2 - We theoretically investigate the influence of gravity on laser light in a plano concave, i.e., hemispherical optical cavity, operating on Earth. The propagation of light in such a cavity is modeled by a Gaussian beam, affected by the Earth's gravitational field. On laboratory scale, this field is described by the spacetime of homogeneous gravity, known as Rindler spacetime. In that spacetime, the beam is bent downwards and acquires a height dependent phase shift. As a consequence the phase fronts of the laser light differ from those of a usual Gaussian beam. Assuming that the initial beam enters the cavity along its symmetry axis, these gravitational effects cause variations of the beam phase with every cavity round trip. Detailed calculations are performed to investigate how these phase variations depend on the beam parameters and the cavity setup. Moreover, we discuss the implications of our findings for cavity calibration techniques and cavity-based laser stabilization procedures.
AB - We theoretically investigate the influence of gravity on laser light in a plano concave, i.e., hemispherical optical cavity, operating on Earth. The propagation of light in such a cavity is modeled by a Gaussian beam, affected by the Earth's gravitational field. On laboratory scale, this field is described by the spacetime of homogeneous gravity, known as Rindler spacetime. In that spacetime, the beam is bent downwards and acquires a height dependent phase shift. As a consequence the phase fronts of the laser light differ from those of a usual Gaussian beam. Assuming that the initial beam enters the cavity along its symmetry axis, these gravitational effects cause variations of the beam phase with every cavity round trip. Detailed calculations are performed to investigate how these phase variations depend on the beam parameters and the cavity setup. Moreover, we discuss the implications of our findings for cavity calibration techniques and cavity-based laser stabilization procedures.
UR - http://www.scopus.com/inward/record.url?scp=85114651459&partnerID=8YFLogxK
U2 - 10.1103/PhysRevD.104.062002
DO - 10.1103/PhysRevD.104.062002
M3 - Article
AN - SCOPUS:85114651459
VL - 104
JO - Physical Review D
JF - Physical Review D
SN - 2470-0010
IS - 6
M1 - 062002
ER -