A. Dominjon
A5018501499- Superconducting and THz Device Technology
- Pulsars and Gravitational Waves Research
- Radio Astronomy Observations and Technology
- Particle accelerators and beam dynamics
- Particle physics theoretical and experimental studies
- Geophysics and Sensor Technology
- CCD and CMOS Imaging Sensors
- Particle Accelerators and Free-Electron Lasers
- Gyrotron and Vacuum Electronics Research
- Superconducting Materials and Applications
- Advanced Frequency and Time Standards
- Advanced Optical Sensing Technologies
- Particle Detector Development and Performance
- Cosmology and Gravitation Theories
- Physics of Superconductivity and Magnetism
- Microwave Engineering and Waveguides
- Geophysics and Gravity Measurements
- Antenna Design and Optimization
- Neutrino Physics Research
- Advanced Fluorescence Microscopy Techniques
- Acoustic Wave Resonator Technologies
- Adaptive optics and wavefront sensing
- Astrophysics and Cosmic Phenomena
- Astronomical Observations and Instrumentation
- Radio Frequency Integrated Circuit Design
Laboratoire d’Annecy de Physique des Particules
1995-2023
Institut National de Physique Nucléaire et de Physique des Particules
2011-2021
Centre National de la Recherche Scientifique
1996-2021
Institute of Nuclear Physics of Lyon
2009-2020
Institut de Physique des 2 Infinis de Lyon
2020
National Astronomical Observatory of Japan
2014-2019
Université Claude Bernard Lyon 1
2008-2014
Institut de Physique
2011
Centre de Gestion Scientifique
1995-1997
The OPERA neutrino oscillation experiment has been designed to prove the appearance of ντ in a nearly pure νμbeam (CNGS) produced at CERN and detected underground Hall C Gran Sasso Laboratory, 730 km away from source. In OPERA, τ leptons resulting interaction ντare target units called bricks made nuclear emulsion films interleaved with lead plates. contains 150000 such bricks, for total mass 1.25 kton, arranged into walls plastic scintillator strips. detector is split two identical...
The Virgo gravitational wave detector is an interferometer with 3 km long arms in construction near Pisa to be commissioned the year 2000. has been designed achieve a strain sensitivity of few times at 200 Hz. A large effort gone into conception mirror suspension system, which expected reduce noise level 10 signals and main sources are briefly discussed; choices made illustrated together present status experiment.
The OPERA neutrino detector in the underground Gran Sasso Laboratory (LNGS) was designed to perform first detection of oscillations appearance mode through study νμ → ντ oscillations. apparatus consists an emulsion/lead target complemented by electronic detectors and it is placed high energy long-baseline CERN LNGS beam (CNGS) 730 km away from source. Runs with CNGS neutrinos were successfully carried out 2007 2008 fully operational its related facilities for emulsion handling analysis....
LiteBIRD is a next generation satellite aiming for the detection of Cosmic Microwave Background (CMB) B-mode polarization imprinted by primordial gravitational waves generated in era inflationary universe. The science goal to measure tensor-to-scaler ratio r with precision δr < 10<sup>-3</sup>♦, offering us crucial test major large-single-field slow-roll inflation models. planned conduct an all sky survey at sun-earth second Lagrange point (L2) angular resolution about 0.5...
New methods for efficient and unambiguous interconnection between electronic position sensitive detectors target units based on nuclear photographic emulsion films have been developed. The application to the OPERA experiment, that aims at detecting νμ⇌ντ oscillations in CNGS neutrino beam, is reported this paper. In order reduce background due latent tracks collected before installation detector, on-site large-scale treatments of emulsions (''refreshing'') applied. Changeable Sheet (CSd)...
We present an unbiased and robust analysis method for power-law blinking statistics in the photoluminescence of single nano-emitters, allowing us to extract both bright- dark-state exponents from emitters' intensity autocorrelation functions. As opposed widely-used threshold method, our technique therefore does not require discriminating emission levels bright dark states experimental timetraces. rely on simultaneous recording 450 timetraces CdSe/CdS core/shell quantum dots at a frame rate...
A broadband antireflective subwavelength structure was developed suitable for large diameter silicon or alumina lenses used in the optical systems of superconducting cameras. In this study, a that can be easily fabricated with dicing blade designed. The model comprised both pyramidal section (550 μm depth) and straight (150 to simplify fabrication metal bonded V-shaped normal dicing-blade. simulated transmittance between 97 334 GHz >90%, which is comparable 700-μm-depth tapered structure. on...
Due to their multiplexing capability and good sensitivity radiation from submillimeter X-ray wavelengths, microwave kinetic inductance detectors (MKIDs) are increasingly used in the field of astrophysics. The Advanced Technology Center National Astronomical Observatory Japan is developing MKIDs for astronomical observations such as CMB B-mode search with LiteBIRD. made superconductors whose energy gap determines detector frequency range. depends on Tc, critical temperature superconductor. It...
We have developed an optics for 220 GHz observations, which is a compact cold re-imaging one from telescope focal plane, with F/# = 6 to detector plane 1 at 100 mK. It employs two high refractive lenses, purity alumina (n=3.1) and silicon (n=3.4). To reduce the incident stray light into detector, nested baffle composed of four reflectors same spherical shape has been developed. The power simulated be 0.2 μW corresponds quarter that without-baffles case. total transmittance three kinds IR...
The OPERA neutrino oscillation experiment is based on the use of Emulsion Cloud Chamber (ECC). In ECC, nuclear emulsion films acting as very high precision tracking detectors are interleaved with lead plates providing a massive target for interactions. We report studies related to effects occurring from contact between and lead. A low radioactivity required in order minimize number background tracks emulsions achieve performance reconstruction events. It was observed that adding other...
We demonstrate a design of octave-band circular waveguide coupled planar ortho-mode transducer (OMT) with Microwave Kinetic Inductance Detector (MKID) for LiteBIRD mission, small-size satellite cosmic microwave background (CMB) polarization signal full-sky mapping. In our 4-pixel prototype design, each single pixel is sensitive to two frequency bands (90 GHz and 150 GHz) corresponding atmospheric window. Silicon on insulator (SOI) has been selected OMT structure broadband coplanar (CPW)...
Wide field cryogenic optics and millimeter-wave Microwave Kinetic Inductance Detector (MKID) cameras with Si lens array have been developed. MKID is a Cooper-pair breaking photon detector consists of supercon- ducting resonators which enable microwave (~GHz) frequency multiplexing. Antenna-coupled Aluminum CPW are put in line on substrate to be read by pair coaxial cables. A 220 GHz - 600 pixels camera anti-reflection (AR) coated has demonstrated an 0.1 K cryostat. compact system high...