ARC project GWAS

Gravitational-Wave Science

Internal reference number : 19/24-103
Start date : 01/10/2019
End date : 30/09/2025

Partners

PI (spokesperson) : Giacomo Bruno, University of Louvain (UCLouvain), Institute of research in Mathemathics and Physics (IRMP), Centre for Cosmology, Particle Physics and Phenomenology (CP3)

CoI-1 : Christophe Ringeval, University of Louvain (UCLouvain), Institute of research in Mathemathics and Physics (IRMP), Cosmology, Universe and Relativity at Louvain (CURL)

Co-2 : Christophe Collette, ULiège, Active aerospace structures and advanced mechanical systems (A&M)

Co-3 : Jean-René Cudell, ULiège, Space sciences, Technologies and Astrophysics Research (STAR)

Aims of the Coordinated Research Project

The detection in 2015 of gravitational waves (GW) by the LIGO and Virgo Collaborations has opened a new window on the universe and on fundamental interactions. The GWAS project contributes to this new era of astronomy through research in four areas of GW Science, defined as follows.

Data Analysis of the LIGO and Virgo detectors. The goal is to extract information on fundamental physics, cosmology and astrophysics. Research has been focusing on searches for compact binary coalescences, stochastic GW background, quasi-monochromatic GW signals (“continuous waves”), unmodelled GW signals (“bursts”), and coincident detection of neutrinos and GWs emitted from common sources.

GW theory and its connections to theoretical cosmology. The research in this area has  covered early Universe GW sources, including inflation, cosmic strings, and phase  transitions, with significant findings in areas such as high-order corrections for inflationary models, turbulence-induced GWs detectable by the LISA mission, and enhanced emissions from current-carrying cosmic strings.

Development of Instrumentation for terrestrial GW detectors. Research focuses on:

  - Optics. The UCLouvain group has focused on the development of the so-called Virgo phase cameras to eliminate undesirable high-order resonating laser light modes in the Virgo optical cavities. An optical set-up to help understand the response of the Virgo phase cameras was designed and built at the UCLouvain Laser&Optics technological platform.

  - Seismic Isolation. In preparation for the future ET observatory, ULiège has been developing a 6-degree-of-freedom platform to isolate interferometer components from ground vibrations, aiming for a noise reduction of up to three orders of magnitude. UCLouvain and ULiège have been developing ultra-sensitive cryogenic inertial sensors and low-noise superconducting actuators for the seismic isolation of the future ET mirrors.

 - Software and Computing. To support the intensive data-driven goals of GW Science, the UCLouvain computing center (also serving CERN and other international experiments) has been integrated in the global network of computing clusters that execute the analysis codes of the GW community. Moreover, the UCLouvain cluster has been providing a crucial data-serving service to the LIGO/Virgo/KAGRA community.

The research team

Giacomo Bruno (PI – spokeperson) 

Giacomo Bruno is full professor (“professeurs ordinaire”) in experimental physics at the university of Louvain (UCLouvain), Belgium. He was a CERN Research Fellow between 2002 and 2004 and had previously received a PhD in experimental particle physics from the University of Pavia, Italy.
His current scientific interests are in gravitational-wave (GW) science with the Virgo experiment at the EGO observatory and the preparation of the future Einstein Telescope (ET) observatory. He is involved in data analysis for final physics studies (searches for a stochastic GW background, quasi-monochromatic signals, and coincident neutrino and GW signals), computing and development of instrumentation (laser and optics solutions for GW detectors).  Prior to 2018 he had conducted research for almost 20 years on development of particle detectors, development of event reconstruction algorithms, and final physics data analysis for the CMS experiment at the LHC collider of the CERN laboratory, contributing notably to the discovery of the Higgs boson in 2012. Since he turned to GW science in 2018, his focus has been on building a new GW research group at UCLouvain. The group counts today about 15 full-time members, including two permanent staff members: prof J. Janquart (50% at the Royal Observatory of Belgium) and Dr A. Goodwin-Jones. Several other permanent colleagues at UCLouvain are also collaborating part-time on GW projects with this group.  

Christophe Ringeval (Promotor, Co-Investigator)

Christophe Ringeval is the head of the CURL (Cosmology) research group at the IRMP and he is a world leading expert on Cosmic Inflation and Cosmic Strings. His research is providing the theoretical frameworks necessary for interpreting next-generation cosmological data from missions like the Euclid satellite. Considering the ARC project, his research has specialised in the theoretical prediction of gravitational-wave signals for major current and future experiments, including Virgo, LIGO, and the LISA spatial mission.   For the details about the group and research activities of CURL please go to https://curl.group/.

Christophe Collette (Promotor, Co-Investigator)

Christophe Collette is the head of the Precision Mechatronics Laboratory at ULiège and a leading expert in high-precision motion control and vibration isolation. A long-standing member of the LIGO Scientific Collaboration, his expertise was instrumental in the first detection of gravitational waves, specifically through the development of active control systems to suppress low-frequency seismic noise. Within the context of the Einstein Telescope and Virgo, he leads the development of next-generation seismic isolation platforms and active vibration control strategies, which are essential for reaching the sensitivity required to observe the early Universe. His group counts 11 PhD students and 1 postdoc.

Jean-René Cuddell (Promotor, Co-Investigator)

His main research interest cover non perturbative QCD: lattice, Dyson-Schwinger, Gribov confinement, Deep-inelastic scattering, Regge theory, diffractive states in hadronic collisions, Astroparticles: axion-like particles, neutrinos, dark matter and Gravitational waves.

Theses defended in the context of the Coordinated Research Project

Cosmic inhomogeneities in the early universe: a numerical relativity approach

• PhD Student : Cristian Joana
• Date of defense : 21/10/2022
• Supervisors : Christophe Ringeval (Co-I) and Sebastien Clesse (ULB)

Searching for stochastic gravitational-wave backgrounds with the LIGO and Virgo Detectors

• PhD Student : Federico De Lillo
• Date of defense : 27/05/2024
• Supervisor : Giacomo Bruno (PI)

Mode sensing with the phase camera for gravitational-wave interferometers

• PhD Student : Ricardo de Abreu Silverio Cabrita
• Date of defense : 12/01/2026
• Supervisors : Giacomo Bruno (PI) and Clément Lauzin (UCLouvain)

Activities organised as part of the Coordinated Research Project

Workshop : Gravitational Wave Orchestra 2022
September 2022, Louvain-La-Neuve, Belgium
This worshop was co-organised by Giacomo Bruno (PI)

Special lecture series by C. Van Den Broeck (University of Utrecht) : Gravitational waves: theory and observations
January 2020, Louvain-la-Neuve, Belgium
The lectures were organised by Giacomo Bruno (PI)

Special lecture series for Chaire Georges Lemaître 2020, Prof. S Hild, University of Maastricht): Gravitational wave detectors
February 2020, Louvain-La-Neuve, Belgium
Giacomo Bruno (PI) was the Organiser of the 2020 edition of the Chaire Georges Lemaître

Publications in connection with the Coordinated Research Project

Remark: We have excluded from the publication list reported below, the LIGO-Virgo-KAGRA collaboration papers that typically have more than 1000 authors and to which UCLouvain researchers have not directly contributed, but are part of the authors’ list because they have contributed to the construction and operation of the experiment. This list of papers is available at https://pnp.ligo.org/ppcomm/Papers.html. We have also decided not to list the publications of prof. J. Janquart, who joined UCLouvain and IRMP in September 2024 and members of his group, given that these publications are rather the result of his expertise gained outside the GWAS project.

•    Peer-reviewed articles published in journals.

[1]    A.L.Miller and Y.Zhao, “Probing the Pulsar Explanation of the Galactic-Center GeV Excess Using Continuous Gravitational-Wave Searches”, Phys. Rev. Lett. 131 (2023) [arXiv:2301.10239 [astro-ph.HE]].
[2]    F.De Lillo and J.Suresh, “Estimating astrophysical population properties using a multicomponent stochastic gravitational-wave background search”, Phys. Rev. D 109(2024) [arXiv:2310.05823 [gr-qc]].
[3]    D.Agarwal, J.Suresh, S.Mitra and A.Ain, “Angular power spectra of anisotropic stochastic gravitational wave background: Developing statistical methods and analyzing data from ground-based detectors”, Phys. Rev. D 108 (2023); [arXiv:2302.12516 [gr-qc]].
[4]    KZ.Yang, J.~Suresh, et al., “Measurement of the cross-correlation angular power spectrum between the stochastic gravitational wave background and galaxy overdensity”, Phys. Rev. D 108 (2023) [arXiv:2304.07621 [gr-qc]].
[5]    A.I.Renzini et al., ”pygwb: A Python-based Library for Gravitational-wave Background Searches”, Astrophys .J. 952 (2023) [arXiv:2303.15696 [gr-qc]].
[6]    M.Sieniawska, D.I.Jones and A.L.Miller, “Measuring neutron star distances and properties with gravitational-wave parallax”, Mon. Not. Roy. Astron. Soc. 521 (2023) [arXiv:2212.07506 [astro-ph.HE]].
[7]    T.S.Yamamoto, A.L.Miller, M.Sieniawska and T.Tanaka, “Assessing the impact of non-Gaussian noise on convolutional neural networks that search for continuous gravitational waves”, Phys. Rev. D 106 (2022) [arXiv:2206.00882 [gr-qc]].
[8]    D.Agarwal, J.Suresh, et al., “Targeted search for the stochastic gravitational-wave background from the galactic millisecond pulsar population”, Phys. Rev. D 106 (2022) [arXiv:2204.08378 [gr-qc]].
[9]    F.De Lillo, J.Suresh and A.L.Miller, “Stochastic gravitational-wave background searches and constraints on neutron-star ellipticity”, Mon. Not. Roy. Astron. Soc. 51 (2022) [arXiv:2203.03536 [gr-qc]].
[10]    A.L. Miller, S. Clesse, F. De Lillo et al., “Probing planetary-mass primordial black holes with continuous gravitational waves”, Phys. Dark Univ. 32 (2021) 100836. 
[11]    KAGRA and Virgo and LIGO Scientific Collaborations, “Search for anisotropic gravitational-wave backgrounds using data from Advanced LIGO and Advanced Virgo’s first three observing runs”, Phys. Rev. D 104 (2021) 2, 022005.
[12]    A.L. Miller, N. Aggarwal, S. Clesse, F. De Lillo, “Constraints on planetary and asteroid-mass primordial black holes from continuous gravitational-wave searches”, Phys. Rev. D 105, arxiv: 2110.06188.
[13]    S. Caudill, S. Kandhasamy, C. Lazzaro, A. Matas, M. Sieniawska, A.L. Stuver, “Gravitational-wave searches in the era of Advanced LIGO and Virgo”, Modern Physics Letters A, Volume 36, Issue 23, id. 2130022-458.
[14]    K. Janssens, J. Suresh, et al., “Gravitational-Wave Geodesy: Defining False Alarm Probabilities with Respect to Correlated Noise”, Phys. Rev. D 105 (2022) 8, 082001,    arXiv: 2112.03560.

[15]    KAGRA and Virgo and LIGO Scientific Collaborations, “All-sky search for gravitational wave emission from scalar boson clouds around spinning black holes in LIGO O3 data”, Phys. Rev. D 105 (2022) 10, 102001 arXiv:2111.15507.
[16]    KAGRA and Virgo and LIGO Scientific Collaborations, “Constraints on the cosmic expansion history from GWTC-3”, Astrophys.J. 949 (2023) 2, 76  arXIv:2111.03604.
[17]    Addazi et al., “Quantum gravity phenomenology at the dawn of the multi-messenger era–A review”, Progress in Particle and Nuclear Physics (2021), arXiv: 2111.05659[hep-ph]. 
[18]    I. La Rosa, P. Astone, S. D’Antonio, S. Frasca, P. Leaci, A.L. Miller, C. Palomba, O.J. Piccinni, L. Pierini, and T. Regimbau, “Continuous Gravitational-Wave Data Analysis with General Purpose Computing on Graphic Processing Units”, Universe 7.7 (2021).
[19]    R. Abbott et al., “Search for anisotropic gravitational-wave backgrounds using data from Advanced LIGO and Advanced Virgo’s first three observing runs”, Phys. Rev. D 104.2 (2021), p. 022005, arXiv: 2103.08520 [gr-qc].
[20]    R. Abbott et al., “Diving below the Spin-down Limit: Constraints on Gravitational Waves from the Energetic Young Pulsar PSR J0537-6910”, The Astrophysical Journal Letters 913.2 (May 2021), p. L27. url: https://doi.org/10.3847/2041-8213/abffcd.
[21]    A.L. Miller et al., “Probing new light gauge bosons with gravitational-wave interferometers using an adapted semi-coherent method”, Phys. Rev. D 103 (2021), p. 103002. arXiv: 2010.01925 [astro-ph.IM].
[22]    Andrew L. Miller et al., “Using gravitational-wave interferometers as particle detectors to directly probe the existence of dark matter”, Letter of Intent for Snowmass 2021 (Aug. 2020).
[23]    Ling Sun, Cristiano Palomba, and Andrew L. Miller. “Snowmass2021-Letter of Interest Search for gravitational waves from ultralight boson clouds around black holes”. In: Letter of Intent for Snowmass 2021 (Aug. 2020).
[24]    F. De Lillo, J. Suresh, A. Depasse, M. Sieniawska, A. Miller and G. Bruno, “Probing ensemble properties of vortex-avalanche pulsar glitches with a stochastic gravitational-wave background search”, Phys. Rev.D 107, arXiv:2211.16857 (2022) [gr-qc].
[25]    LIGO Scientific, Virgo, and KAGRA Collaborations, R. Abbott et al., “All-sky, all-frequency directional search for persistent gravitational waves from Advanced LIGO’s and Advanced Virgo’s first three observing runs”, Phys. Rev. D 105 (2022) 12, 122001, arXiv: 2110.09834
[26]    R. Cabrita et al. “Mode matching with a phase camera for gravitational-wave detectors”, Nucl. Instr. Meth. A 1068 (2024) 169806
[27]    A.W.Goodwin-Jones, R.Cabrita et al., “Transverse mode control in quantum enhanced interferometers: a review and recommendations for a new generation”, Optica 11 (2024)[arXiv:2311.04736 [physics.optics]].
[28]    R. Cabrita et al., “Resonant enhanced detection of the higher-order modes of a locked cavity”, Opt. Express 33 (2025) 14, 30209-30220. arXiv:2505.03525.
[29]    A.Utina et al., “ETpathfinder: a cryogenic testbed for interferometric gravitational-wave detectors”, Class. Quant. Grav.39(2022) [arXiv:2206.04905 [astro-ph.IM]].
[30]    J.van Heijningen, C. Collette, M. Zeoli et al., “The payload of the Lunar Gravitational-wave Antenna”,J. Appl. Phys. 133 (2023) [arXiv:2301.13685[gr-qc]].
[31]    J. van Heijningen et al.; 2023 Journ. Sound and Vibr. 552 P117614.
[32]    J. van Heijningen et al., “A fifty-fold improvement of thermal noise limited inertial sensitivity by operating at cryogenic temperatures”, JINST 15 (2020) P06034.
[33]    LIGO Scientific, Virgo and Kagra Collaborations, “Directional search for persistent gravitational waves: Results from the first part of LIGO, Virgo, and KAGRA's fourth Observing Run”, submitted to Phys. Rev. D;  arXiv:2510.17487
[34]    H. van der Graaf et al., “The ultimate performance of the Rasnik 3-point alignment system”, Nucl. Instrum. Meth. A 1050 (2023), arXiv:2104.03601.
[35]    J. Harms et al.,  « Lunar Gravitational-wave Antenna », ApJ 910 1.
[36]    F. Badaracco, J. Harms, C. De Rossi, I. Fiori , K. Miyo, T. Tanaka, T. Yokozawa, F. Paoletti and T. Washimi, “KAGRA underground environment and lessons for the Einstein Telescope”, Physical Review D, 104(4), p.042006, 2021, arXiv:2104.07527.
[37]    LIGO Scientific, Virgo and Kagra Collaborations, “Directed searches for gravitational waves from ultralight vector boson clouds around merger remnant and galactic black holes during the first part of the fourth LIGO-Virgo-KAGRA observing run”, submitted to Phys. Rev. D.; arXiv: 2509.07352.
[38]    S. Venikoudis et al., “Impact of correlated magnetic noise on directional stochastic gravitational-wave background searches”, Phys. Rev. D 111 (2025) 8, 082005; arXiv: 2411.11746.
[39]    P.Auclair, B.Blachier and C. Ringeval, “Clocking the end of cosmic inflation”, JCAP 10 (2024) [arXiv:2406.14152[astro-ph.CO]].
[40]    J.Martin, C.Ringeval and V.Vennin, “Vanilla inflation predicts negative running”, EPL14 (2024) [arXiv:2404.15089 [astro-ph.CO]].
[41]    J.Martin, C.Ringeval and V.Vennin, “Cosmic Inflation at the crossroads”, JCAP 07(2024)[arXiv:2404.10647 [astro-ph.CO]].
[42]    B.Blachier, P.Auclair, C.Ringeval and V.Vennin, “Spatial curvature from super-Hubble cosmological fluctuations”, Phys. Rev. D 108 (2023) [arXiv:2302.14530 [astro-ph.CO]].
[43]    M.Colpi, P. Auclair et al., ”LISA Definition Study Report”, arXiv:2402.07571 [astro-ph.CO].
[44]    Antoniadis, P. Auclair et al., [EPTA and InPTA],”The second data release from the European Pulsar Timing Array - IV. Implications for massive black holes, dark matter, and the early Universe”, Astron. Astrophys. 685 (2024) [arXiv:2306.16227 [astro-ph.CO]].
[45]    H.Quelquejay Leclere et al. [European Pulsar Timing Array and EPTA], “Practical approaches to analyzing PTA data: Cosmic strings with six pulsars”, Phys. Rev. D108(2023)[arXiv:2306.12234 [gr-qc]].
[46]    P.Auclair, D.A.Steer and T.Vachaspati, “Repeated gravitational wave bursts from cosmic strings”, Phys. Rev. D108 (2023) [arXiv:2306.08331 [gr-qc]].
[47]    P.Auclair, SBabak, H.Quelquejay Leclere and DA.Steer, “Cosmic string bursts in LISA”, Phys. Rev. D 108(2023)[arXiv:2305.11653 [gr-qc]].
[48]    P.Auclair, S.Blasi, V.Brdar and K.Schmitz, “Gravitational waves from current-carrying cosmic strings”, JCAP 04 (2023) [arXiv:2207.03510 [astro-ph.CO]].
[49]    P. Auclair, K. Leyde and D. Steer, “A window for cosmic strings”, JCAP 04 (2023) 005, arXiv: 2112.11093.
[50]    D.C.N. da Cunha and C. Ringeval, “Interferences in the stochastic gravitational wave background”, JCAP 08 (2021) 005, arXiv: 2104.14231 [astro-ph.CO].
[51]    C. Joana, S. Clesse, “Inhomogeneous pre-inflation across Hubble scales in full general relativity”, Phys. Rev. D 103, 083501 (2021), arXiv:2011.12190.
[52]    T. Andrade, C. Joana, et al., “GRChombo: An adaptable numerical relativity code for fundamental physics”, Journal of Open Source Software, 6(68), 3703, arXiv: 2201.03458.
[53]    C. Joana, “Gravitational dynamics in Higgs inflation: Preinflation and preheating with an auxiliary field”, Phys. Rev. D 106 (2022) 023504, arXiv:2202.07604.
[54]    D. C. N. da Cunha, C. Ringeval and F. R. Bouchet, “Stochastic gravitational waves from long cosmic strings”, JCAP 09 (2022) 078, arXiv: 2205.04349 [astro-ph.CO]
[55]    P. Auclair and C. Ringeval, “Slow-roll inflation at N3LO”, Phys. Rev. D 106 (2022) 063512, arXiv: 2205.12608.
[56]    J. Martin, C. Ringeval and V. Vennin, “Encyclopædia Inflationaris”, Phys. Dark Univ. 5-6 (2014) 75–235, arXiv: 1303.3787v3.
[57]    J. Martin, C. Ringeval and V. Vennin, “Encyclopædia Inflationaris: opiparous edition”, arXiv: 1303.3787v4.
[58]    P. Auclair, C. Caprini, D. Cutting, M. Hindmarsh, K. Rummukainen, D. A. Steer and D. J. Weir, “Generation of gravitational waves from freely decaying turbulence”, JCAP 09 (2022), 029, arXiv:2205.02588 [astro-ph.CO]
[59]    P. Auclair et al., LISA Cosmology Working Group, “Cosmology with the Laser Interferometer Space Antenna” Liv. Rev. Relat. Vol. 26, 5, (2023);  arXiv:2204.05434 [astro-ph.CO] .
[60]    P. Auclair, “Mean-filed approach to random apollonian packing”, Phys. Rev. E (2023) 107, 034129, arXiv: 2211.07509 [math-ph].
[61]    L. Tsukada et al., “Bayesian parameter estimation for targeted anisotropic gravitational-wave background”, Phys. Rev. D 107, 023024
[62]    I M Romero-Shaw et al., “Bayesian inference for compact binary coalescences with bilby: validation and application to the first LIGO–Virgo gravitational-wave transient catalogue”,  Monthly Notices of the Royal Astronomical Society, Volume 499, Issue 3, December 2020, Pages 3295–3319, https://doi.org/10.1093/mnras/staa2850
[63] Jacques, L., Zeoli, M., Amorosi, A., Bertolini, A., Collette, C., Cornelissen, R., ... & Tacca, M. (2025, April 15). Cryogenic radiative cooling of a large payload for gravitational wave detector: Design and results of the E-TEST project. *Cryogenics*, 147. DOI: 10.1016/j.cryogenics.2025.104057.
[64] Amorosi, A., Amez-Droz, L., Zeoli, M., Thibaut, B., Teloi, M., Lakkis, M. H., ... & Collette, C. (2025, April). On broadening techniques for a high-resolution optical accelerometers.Sensors and Actuators. A, Physical*, 390. DOI: 10.1016/j.sna.2025.116540.
[65] Kuhlbusch, T. J., Zeoli, M., Joppe, R., Collette, C., Hebbeker, T., van Heijningen, J. V., & Stahl, A. (2024, September). Characterizing 1550 nm optical components down to 8 K. *Cryogenic, 142. DOI: 10.1016/j.cryogenics.2024.103895.
[66]Dietrich, J., Raze, G., Deraemaeker, A., Collette, C., & Kerschen, G. (2024). H∞ tuning rules for positive position feedback controllers: the single-degree-of-freedom case and beyond. Journal of Vibration and Control, 31(13-14). DOI: 10.1177/10775463241258801.
[67] Amez-Droz, L., Tunon de Lara, M., Collette, C., Caucheteur, C., & Lambert, P (2023, September 22). Instrumented Flexible Glass Structure: A Bragg Grating Inscribed with Femtosecond Laser Used as a Bending Sensor. Sensors, 23(19). DOI: 10.3390/s23198018.
[68] Tunon de Lara, M., Amez-Droz, L., Chah, K., Lambert, P., Collette, C., & Caucheteur, C.  (2023, August 28). Femtosecond pulse laser-engineered glass flexible structures instrumented with an in-built Bragg grating sensor. Optics Express, 31(18). DOI: 10.1364/OE.497482.

•    Articles published as proceedings of conferences.

[69]    R. Cabrita, on behalf of the Virgo collaboration, “Beam characterization with the phase cameras in Advanced Virgo”  Proceedings of the GRavitational-waves Science&technology Symposium (GRASS), June 2022 28
[70]    E.C. Ferreira, F. Bocchese, F. Badaracco, J.V. van Heijningen, S. Lucas and A. Perali, “Superconducting thin film spiral coils as low-noise cryogenic actuators”, Conference Series (Vol. 2156, No. 1, p. 012080), December 2021, IOP Publishing.
[71]    F. Badaracco and Virgo Collaboration, “Environmental noises in current and future gravitational-wave detectors”, Conference Series (Vol. 2156, No. 1, p. 012077), December 2021, IOP Publishing.
[72]    G. Bruno et al., “Searching for joint neutrino and gravitational wave emission from the environment of Active Galactic Nuclei”, PoS ICRC2023 (2023) 1514; arXiv: 2310.01125.
[73]    L. Ricca et al., “Multi-Messenger Search for Neutrino and Gravitational-Wave Emissions from Binary Black Holes Near Active Galactic Nuclei”, PoS ICRC2025 (2025) 958; arXiv:2510.21502
[74]    M. Lamoureux et al., « MOMENTA – Multi-Observations Multi-Energy Neutrino Transient Analysis », PoS ICRC2025 945.
[69] Magain, G., Collette, C., Zeoli, M., Gahlot, H. S., Spencer, A., & Travasso, F. (2025, October 7). ET-FIBER: Monocrystalline Silicon Fibre Development for Cryogenic Test Mass Suspensions. Presented at the European Union conference, Berlin, Germany.
[75] Winand, F., Collette, C., & Kerschen, G.(2025, June 18). *Amplitude Resonance Tracking Using PLL and ESC for Nonlinear Systems. Presented in Copenhagen, Denmark.
[76] Zeoli, M., Berthelot, A., van Heijningen, J. V., Jacques, L., Lenaerts, C., & Collette, C. (2025, April 8). Low-vibration cryogenic testbed for inertial sensor characterization. Presented at the F.R.S.-FNRS conference, Prague, Czechia.
[77] Amez-Droz, L., Tunon de Lara, M., Amorosi, A., Lambert, P., Caucheteur, C., & Collette, C. (2024). Investigating Fused Silica Bending Strength and Damping Characteristics on Resonators Fabricated through Femtosecond Laser-Assisted Wet Etching: An Experimental Analysis. Proceedings of MARSS 2024, Delft, Netherlands. DOI: 10.1109/MARSS61851.2024.10612729.
[78] Sider, A., Dehaeze, T., Watchi, J., Lakkis, M. H., Jamshidi, R., Amorosi, A., ... & Collette, C. (2024). Compact isolation of a large mirror at low frequency. 31st Texas Symposium on Relativistic Astrophysics (Prague).

Contact point in UCLouvain

Giacomo Bruno, Principal Investigator (spokeperson/coordinator)
UCLouvain, IRMP
Email : Giacomo.bruno@uclouvain.be