116 citations · 662 across the 35 of their papers we have counts for
35 papers
Torsional-X Seismometer for Lunar Decihertz Gravitational-Wave Detection
Yulin Xia, Denis Martynov, Huan Yang +1
The lunar gravitational-wave antenna concept uses the Moon as a resonant detector instrumented with precision seismometers, targeting the decihertz band between ground- and space-b…
Notes on Images and Communication
Denis Martynov
This is an active module taught to Bachelor's and Master's students at the University of Birmingham since 2021, covering selected topics in applied optics with an emphasis on imagi…
Extending Ground-Based Gravitational-Wave Sensitivity to 5 Hz
Amit Singh Ubhi, Lari Koponen, Jiri Smetana +11
Extending the sensitivity of terrestrial gravitational-wave detectors below 20 Hz is a long-standing challenge, limited by ground motion and inertial sensing noise. In this letter,…
First result for testing semiclassical gravity effect with a torsion balance
Tianliang Yan, Yubao Liu, Leonid Prokhorov +5
The Schrödinger-Newton equation, a theoretical framework connecting quantum mechanics with classical gravity, predicts that gravity may induce measurable deviations in low-frequenc…
Merging L-shaped resonator with Michelson configuration for kilohertz gravitational-wave detection
Xinyao Guo, Teng Zhang, Denis Martynov +1
Detection of gravitational waves in kilohertz frequency range is crucial for understanding the physical processes of binary neutron star mergers. In Ref. [Phys. Rev. X {\bf 13}, 02…
Sensitivity and control of a 6-axis fused-silica seismometer
Jiri Smetana, Amit Singh Ubhi, Emilia Chick +12
We present a pair of seismometers capable of measurement in all six axes of rigid motion. The vacuum-compatible devices implement compact interferometric displacement sensors to su…
Approaches of frequency-dependent squeezing for the low frequency detector of Einstein Telescope
Xingrui Peng, Denis Martynov, Zonghong Zhu +1
The quantum noise in gravitational-wave detectors can be suppressed in a broadband by frequency-dependent squeezing. It usually requires one large scale filter cavity and even two,…
A High-Finesse Suspended Interferometric Sensor for Macroscopic Quantum Mechanics with Femtometre Sensitivity
Jiri Smetana, Tianliang Yan, Vincent Boyer +1
We present an interferometric sensor for investigating macroscopic quantum mechanics on a table-top scale. The sensor consists of pair of suspended optical cavities with a finesse…
DarkGEO: A Large-Scale Laser-Interferometric Axion Detector
Joscha Heinze, Alex Gill, Artemiy Dmitriev +8
Axions and axion-like particles (ALPs) are leading candidates for dark matter. They are well motivated in many extensions of the Standard Model and supported by astronomical observ…
Photon counting for axion interferometry
Haocun Yu, Ohkyung Kwon, Hartmut Grote +1
Axions and axion-like particles are well-motivated dark matter candidates. We propose an experiment that uses single photon detection interferometry to search for axions and axion-…
Design and sensitivity of a 6-axis seismometer for gravitational wave observatories
Leonid Prokhorov, Sam Cooper, Amit Singh Ubhi +13
We present the design, control system, and noise analysis of a 6-axis seismometer comprising a mass suspended by a single fused silica fibre. We utilise custom-made, compact Michel…
Nonlinearities in Long-Range Compact Michelson Interferometers
Jiri Smetana, Chiara Di Fronzo, Anthony Amorosi +1
Compact Michelson interferometers are well positioned to replace existing displacement sensors in the readout of seismometers and suspension systems, such as those used in contempo…
First results of the Laser-Interferometric Detector for Axions (LIDA)
Joscha Heinze, Alex Gill, Artemiy Dmitriev +5
We present the operating principle and the first observing run of a novel kind of direct detector for axions and axion-like particles in the galactic halo. Sensitive to the polaris…
Sensing and control scheme for the inteferometer configuration with an L-shaped resonator
Xinyao Guo, Teng Zhang, Denis Martynov +1
The detection of high-frequency gravitational waves around kHz is critical to understanding the physics of binary neutron star mergers. A new interferometer design has been propose…
A Gravitational Wave Detector for Post Merger Neutron Stars: Beyond the Quantum Loss Limit of Michelson Fabry Perot Interferometer
Teng Zhang, Huan Yang, Denis Martynov +2
Advanced gravitational-wave detectors that have made groundbreaking discoveries are Michelson interferometers with resonating optical cavities as their arms. As light travels at fi…
Design of a tabletop interferometer with quantum amplification
Jiri Smetana, Artemiy Dmitriev, Chunnong Zhao +2
The sensitivity of laser interferometers is fundamentally limited by the quantum nature of light. Recent theoretical studies have opened a new avenue to enhance their quantum-limit…
Active platform stabilisation with a 6D seismometer
Amit Singh Ubhi, Leonid Prokhorov, Sam Cooper +9
We demonstrate the control scheme of an active platform with a six degree of freedom (6D) seismometer. The inertial sensor simultaneously measures translational and tilt degrees of…
Cryogenic optical shadow sensors for future gravitational wave detectors
Amit Singh Ubhi, John Bryant, David Hoyland +1
Displacement sensors have a variety of applications within gravitational wave detectors. The seismic isolation chain of the LIGO core optics utilises optical shadow sensors for the…
Compact Michelson interferometers with subpicometer sensitivity
Jiri Smetana, Rebecca Walters, Sophie Bauchinger +11
The network of interferometric gravitational-wave observatories has successfully detected tens of astrophysical signals since 2015. In this paper, we experimentally investigate com…
Enhancing the sensitivity of interferometers with stable phase-insensitive quantum filters
Artemiy Dmitriev, Haixing Miao, Denis Martynov
We present a new quantum control strategy for increasing the shot-noise-limited sensitivity of optical interferometers. The strategy utilizes active phase-insensitive quantum filte…
Enhancing high frequency sensitivity of gravitational wave detectors with sloshing-Sagnac interferometer
Teng Zhang, Denis Martynov, Stefan Danilishin +1
Sensitivity of gravitational-wave detectors is limited in the high-frequency band by quantum shot noise and eventually limited by the optical loss in signal recycling cavity. This…
A six degree-of-freedom fused silica seismometer: Design and tests of a metal prototype
Amit Singh Ubhi, Jiri Smetana, Teng Zhang +6
Ground vibrations couple to the longitudinal and angular motion of the aLIGO test masses and limit the observatory sensitivity below 30\,Hz. Novel inertial sensors have the potenti…
Enhancing interferometer sensitivity without sacrificing bandwidth and stability: beyond single-mode and resolved-sideband approximation
Xiang Li, Jiri Smetana, Amit Singh Ubhi +5
Quantum noise limits the sensitivity of precision measurement devices, such as laser interferometer gravitational-wave observatories and axion detectors. In the shot-noise-limited…
Towards observing the neutron star collapse with gravitational wave detectors
Teng Zhang, Jiří Smetana, Yikang Chen +5
Gravitational waves from binary neutron star inspirals have been detected along with the electromagnetic transients coming from the aftermath of the merger in GW170817. However, mu…