A5047258457- Superconducting and THz Device Technology
- Physics of Superconductivity and Magnetism
- Radio Astronomy Observations and Technology
- Microwave Engineering and Waveguides
- Radio Frequency Integrated Circuit Design
- Thermal Radiation and Cooling Technologies
- Antenna Design and Optimization
- Calibration and Measurement Techniques
- Gamma-ray bursts and supernovae
- Terahertz technology and applications
- Astronomy and Astrophysical Research
- Spacecraft and Cryogenic Technologies
- Stellar, planetary, and galactic studies
- Advanced Semiconductor Detectors and Materials
- Astrophysical Phenomena and Observations
- Superconducting Materials and Applications
- Spacecraft Design and Technology
- Pulsars and Gravitational Waves Research
- Astronomical Observations and Instrumentation
- Photonic and Optical Devices
- Scientific Research and Discoveries
- Semiconductor Quantum Structures and Devices
- High-pressure geophysics and materials
- Adaptive optics and wavefront sensing
- Gyrotron and Vacuum Electronics Research
SRON Netherlands Institute for Space Research
2012-2024
Institute of Space Sciences
2024
Institut d'Estudis Espacials de Catalunya
2024
Osservatorio Astrofisico di Catania
2024
Centro de Astrobiología
2024
Instituto de Astrofísica de La Plata
2023
Universidad Nacional de La Plata
2023
Consejo Nacional de Investigaciones Científicas y Técnicas
2023
Delft University of Technology
2016-2017
Arizona State University
2016
Context. The Neel IRAM KIDs Array (NIKA) is a fully-integrated measurement system based on kinetic inductance detectors (KIDs) currently being developed for millimeter wave astronomy. In first technical run, NIKA was successfully tested in 2009 at the Institute Millimetric Radio Astronomy (IRAM) 30-meter telescope Pico Veleta, Spain. This prototype consisted of 27-42 pixel camera imaging 150 GHz. Subsequently, an improved has been and October 2010 Veleta telescope. instrument upgrades...
Views Icon Article contents Figures & tables Video Audio Supplementary Data Peer Review Share Twitter Facebook Reddit LinkedIn Tools Reprints and Permissions Cite Search Site Citation S. J. C. Yates, A. Baselmans, Endo, R. M. Janssen, L. Ferrari, P. Diener, Baryshev; Photon noise limited radiation detection with lens-antenna coupled microwave kinetic inductance detectors. Appl. Phys. Lett. 15 August 2011; 99 (7): 073505. https://doi.org/10.1063/1.3624846 Download citation file: Ris (Zotero)...
Future astrophysics and cosmic microwave background space missions operating in the far-infrared to millimetre part of spectrum will require very large arrays ultra-sensitive detectors combination with high multiplexing factors efficient low-noise low-power readout systems. We have developed a demonstrator system suitable for such applications. The combines 961 pixel imaging array based upon Microwave Kinetic Inductance Detectors (MKIDs) capable reading out all pixels simultaneously only one...
We demonstrate photon noise limited performance in both phase and amplitude readout microwave kinetic inductance detectors (MKIDs) consisting of NbTiN Al, down to 100 fW optical power. simulate the far field beam pattern lens-antenna system used couple radiation into MKID derive an aperture efficiency 75%. This is close theoretical maximum 80% for a single-moded detector. The patterns are verified by detailed analysis coupling within our measurement setup.
We present measurements and simulations of the polarization purity leaky lens-antenna coupled microwave Kinetic Inductance Detectors (KIDs) at 1.5 THz. find integrated cross-polarization level to be -21.5 dB for 1 f\#$\lambda$ spatial sampling. The agree well with theoretical description which is based on a combination in-transmission simulation antenna feed, an in-reception analysis antenna-KID system. Combined measured noise equivalent power 5--7$\times$10$^{-20}$ W/$\sqrt{\mathrm{Hz}}$,...
ABSTRACT We report the All-Sky Automated Survey for SuperNovae discovery of tidal disruption event (TDE) ASASSN-23bd (AT 2023clx) in NGC 3799, a LINER galaxy with no evidence strong active galactic nucleus (AGN) activity over past decade. With redshift z = 0.01107 and peak ultraviolet (UV)/optical luminosity (5.4 ± 0.4) × 1042 erg s−1, is lowest-redshift least-luminous TDE discovered to date. Spectroscopically, shows H α He i emission throughout its spectral time series, there are coronal...
An integrated filterbank (IFB) in combination with microwave kinetic inductance detectors (MKIDs), both based on superconducting resonators, could be used to make broadband submillimeter imaging spectrographs that are compact and flexible. In order investigate the possibility of adopting an IFB configuration for DESHIMA (Delft SRON High-redshift Mapper), we study basic properties circuit using electromagnetic simulation. idealized situation, one integrate onto a 4-inch wafer 9 pixel × 920...
Next generation sub-mm imaging instruments require kilo-pixel focal plane arrays filled with background limited detectors. Microwave kinetic inductance detectors (MKIDs) are a state-of-the-art detector for future due to their inherent multiplexing capabilities. An MKID consists of superconducting resonator coupled feed-line that is used readout. In the device presented here radiation coupling achieved by directly planar antenna. The antenna placed in focus an extended hemispherical lens...
Distant, dusty and extremely luminous galaxies form a key component of the high redshift universe, tracing period intense cosmic activity that ultimately gave rise to present-day universe. These highly galaxies, first detected in ground-based submillimeter region, are however optically very faint, which hampers identification optical counterpart measurement redshift. We developing new direct-detection submm spectrograph DESHIMA. By taking advantage rapidly advancing technology...
Large ultrasensitive detector arrays are needed for present and future observatories far infrared, submillimeter wave (THz), millimeter astronomy. With increasing array size, itis increasingly important to control stray radiation inside the chips themselves, surface wave. We demonstrate this effect with focal plane of 880 lens-antenna coupled microwave kinetic inductance detectors (MKIDs). Presented here near field measurements MKID optical response versus position on a reimaged source. that...
SPACEKIDS, a European Union FP-7 project, has recently been completed. It focused on developing kinetic inductance detector (KID) arrays and demonstrating their suitability for space applications at far infrared submillimetre wavelengths. KID have developed both low-background (typical of astrophysical applications) high-background Earth-observation applications), based performance specifications derived from the science requirements representative potential future missions. pixel array...
Escalating ransomware attacks present profound challenges to cybersecurity, particularly as attackers leverage increasingly sophisticated evasion techniques that render traditional detection methods inadequate. Predictive Behavioral Mapping (PBM) introduces a novel and adaptive approach through sequential behavioral analysis, allowing for the identification of activities prior payload execution. Utilizing recursive feature integration dynamic scoring algorithm, PBM enhances accuracy by...
One of the instruments on International X-ray Observatory (IXO), under study with NASA, ESA and JAXA, is Microcalorimeter Spectrometer (XMS). This instrument, which will provide high spectral resolution images, based micro-calorimeters Transition Edge Sensor thermometers. The pixels have metallic absorbers are read-out by multiplexed SQUID electronics. requirements for this instrument demanding. In central array (40 x 40 pixels) an energy < 2.5 eV required, whereas outer more relaxed (≈ 10...
In the next decades millimeter and sub-mm astronomy requires large format imaging arrays broad-band spectrometers to complement high spatial spectral resolution of Atacama Large Millimeter/sub-millimeter Array. The desired sensors for these instruments should have a background limited sensitivity optical efficiency enable thousands pixels in size. Hybrid microwave kinetic inductance detectors consisting NbTiN Al shown satisfy requirements. We present second generation hybrid NbTiN-Al MKIDs,...
ABSTRACT We present extensive ultraviolet (UV) and optical photometric spectroscopic follow-up of supernova (SN) 2021gno by the ‘Precision Observations Infant Supernova Explosions’ (POISE) project, starting less than 2 d after explosion. Given its intermediate luminosity, fast evolution, quick transition to nebular phase with spectra dominated [Ca ii] lines, SN belongs small family Calcium-rich transients. Moreover, it shows double-peaked light curves, a phenomenon shared only four other...
We solve numerically the two first order differential equations obtained by Tooper for polytropic compact stars. These depend on index n related to adiabatic Γ = 1 + 1/n and a parameter σ that manifests relativistic content of equation state (EOS). In this work we investigate effect increasing EOS: case nonrelativistic Fermi gas (n 1.5) one 3.0). show large values σ, where sound velocity is not small in comparison light, matter density more concentrated center star as consequence mass also...
The SAGACE experiment consists of a mm/sub-mm telescope with 3-m diameter primary mirror, coupled to cryogenic multi-beam differential spectrometer. explores the sky in 100-760 GHz frequency range, using four diffraction-limited bolometer arrays. instrument is designed perform spectroscopic surveys Sunyaev-Zeldovich effects thousands galaxy clusters, spectral energy distribution active galactic nuclei, and [CII] line thousand galaxies redshift desert. In 2008 full phase-A study for national...
We present results from the first vector beam pattern measurement of microwave kinetic inductance detectors (MKIDs).Vector patterns require sampling E-field receiver in both amplitude and phase.MKIDs are inherently direct have no phase response to incoming radiation.We map amplitude> detector profile by adapting a two-source heterodyne technique.Our testing strategy recovers information creating reference signal trigger data acquisition.The is generated mixing slightly offset low-frequency...