Details
| Original language | English |
|---|---|
| Article number | 042008 |
| Number of pages | 17 |
| Journal | Physical Review D |
| Volume | 103 |
| Issue number | 4 |
| Publication status | Published - 16 Feb 2021 |
Abstract
ASJC Scopus subject areas
- Physics and Astronomy(all)
- Physics and Astronomy (miscellaneous)
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In: Physical Review D, Vol. 103, No. 4, 042008, 16.02.2021.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Higher-order Hermite-Gauss modes for gravitational waves detection
AU - Ast, Stefan
AU - Di Pace, Sibilla
AU - Millo, Jacques
AU - Pichot, Mikhael
AU - Turconi, Margherita
AU - Christensen, Nelson
AU - Chaibi, Walid
PY - 2021/2/16
Y1 - 2021/2/16
N2 - As part of the research on thermal noise reduction in gravitational-wave detectors, we experimentally demonstrate the conversion of a fundamental TEM00 laser mode at 1064 nm to higher-order Hermite-Gaussian modes (HG) of arbitrary order via a commercially available liquid crystal spatial light modulator. We particularly studied the HG5,5/HG10,10/HG15,15 modes. A two-mirror plano-spherical cavity filters the higher-order modes spatially. We analyze the cleaned modes via a three-mirror diagnosis cavity and measure a mode purity of 96/93/78% and a conversion efficiency of 6.6%/3.7%/1.7%, respectively. A full set of simulations and mathematical proofs are also presented which shows that (i) Hermite-Gauss modes resonate in a two-mirror cavity provided mirrors are properly angled with respect to the impinging mode, and (ii) Hermite-Gauss modes resonate in triangular cavities. Hence, higher-order Hermite-Gauss modes are compatible with ground-based gravitational-wave detectors' architecture and can be employed for the mitigation of mirror thermal noise for the third generation Einstein Telescope or Cosmic Explorer.
AB - As part of the research on thermal noise reduction in gravitational-wave detectors, we experimentally demonstrate the conversion of a fundamental TEM00 laser mode at 1064 nm to higher-order Hermite-Gaussian modes (HG) of arbitrary order via a commercially available liquid crystal spatial light modulator. We particularly studied the HG5,5/HG10,10/HG15,15 modes. A two-mirror plano-spherical cavity filters the higher-order modes spatially. We analyze the cleaned modes via a three-mirror diagnosis cavity and measure a mode purity of 96/93/78% and a conversion efficiency of 6.6%/3.7%/1.7%, respectively. A full set of simulations and mathematical proofs are also presented which shows that (i) Hermite-Gauss modes resonate in a two-mirror cavity provided mirrors are properly angled with respect to the impinging mode, and (ii) Hermite-Gauss modes resonate in triangular cavities. Hence, higher-order Hermite-Gauss modes are compatible with ground-based gravitational-wave detectors' architecture and can be employed for the mitigation of mirror thermal noise for the third generation Einstein Telescope or Cosmic Explorer.
UR - http://www.scopus.com/inward/record.url?scp=85101003819&partnerID=8YFLogxK
U2 - 10.48550/arXiv.1902.01671
DO - 10.48550/arXiv.1902.01671
M3 - Article
VL - 103
JO - Physical Review D
JF - Physical Review D
SN - 2470-0010
IS - 4
M1 - 042008
ER -