Results 11 to 20 of about 924,010 (138)
High/low temperature setups for submillimetric samples under various extreme conditions at the AILES beamline. [PDF]
J Synchrotron RadiatTwo complementary high‐ and low‐temperature experimental setups have been developed at the AILES beamline of Synchrotron SOLEIL to enable infrared and terahertz spectroscopy of submillimetric samples under extreme and well controlled pressure and temperature conditions (from 10 K to 600 K and from vacuum up to 100 GPa).
Taverna C +8 more
europepmc +2 more sources
High-performance waveguide coupled Germanium-on-silicon single-photon avalanche diode with independently controllable absorption and multiplication. [PDF]
Nanophotonics, 2023 Abstract Germanium‐on‐silicon (Ge‐on‐Si) single photon avalanche diodes (SPADs) have received wide attention in recent years due to their potential to be integrated with Si photonics. In this work, we propose and demonstrate a high‐performance waveguide coupled Ge‐on‐Si separate‐absorption‐charge‐multiplication SPAD with three electric terminals.
Wang H +6 more
europepmc +2 more sources
Advanced Quantum Technologies, Volume 6, Issue 12, December 2023., 2023 Homogeneous performance in superconducting nanowire single‐photon detector (SNSPD) arrays is challenging. This work explores helium ion irradiation to tune detection efficiency, switching current, and critical temperature of individual devices on the same chip. After irradiation, 12 nm thick SNSPDs show an efficiency increase from <0.05% to 55.3%. Thin‐
Stefan Strohauer +11 more
wiley +1 more source
Evaluating the GeoSnap 13‐μ$$ \mu $$m cutoff HgCdTe detector for mid‐IR ground‐based astronomy
Astronomische Nachrichten, Volume 344, Issue 8-9, October-November 2023., 2023 Abstract New mid‐infrared HgCdTe (MCT) detector arrays developed in collaboration with Teledyne Imaging Sensors (TIS) have paved the way for improved 10‐μ$$ \mu $$m sensors for space‐ and ground‐based observatories. Building on the successful development of longwave HAWAII‐2RGs for space missions such as NEO Surveyor, we characterize the first 13‐μ ...
Jarron M. Leisenring +15 more
wiley +1 more source
Anisotropic NMR data acquisition with a prototype 400 MHz cryogen‐free NMR spectrometer
Magnetic Resonance in Chemistry, Volume 61, Issue 9-10, Page 530-543, September-October 2023., 2023 Prototype 400 MHz cryogen‐free power‐driven HTS NMR spectrometer, installed in the fumehood in our chemistry laboratory, was evaluated for the first time for relative stereochemical analysis of three commercial natural products (artemisinin, artemether, and dihydroartemisinin) via measurement of anisotropic NMR data through residual dipolar couplings ...
Maria Victoria Silva Elipe +2 more
wiley +1 more source
Earth and Space Science, Volume 10, Issue 9, September 2023., 2023 Abstract SABER (Sounding of the Atmosphere using Broadband Emission Radiometry) is a 10‐channel infrared radiometer that is one of four instruments on the NASA TIMED (Thermosphere‐Ionosphere‐Mesosphere Energetics and Dynamics) satellite mission to study the structure, energetics, chemistry, and dynamics of the Earth's mesosphere and lower thermosphere.
Roy Esplin +4 more
wiley +1 more source
The time‐resolved hard X‐ray diffraction endstation KMC‐3 XPP at BESSY II
Journal of Synchrotron Radiation, Volume 28, Issue 3, Page 948-960, May 2021., 2021 The KMC‐3 XPP endstation of the synchrotron BESSY II is dedicated to time‐resolved studies of structural dynamics of matter upon optical and/or electrical excitation using hard X‐ray diffraction with an accessible time range from 17 ps to several microseconds.The time‐resolved hard X‐ray diffraction endstation KMC‐3 XPP for optical pump/X‐ray probe ...
Matthias Rössle +6 more
wiley +1 more source
Integrated sample‐handling and mounting system for fixed‐target serial synchrotron crystallography
Acta Crystallographica Section D, Volume 77, Issue 5, Page 628-644, May 2021., 2021 A highly flexible, integrated system for preparing samples for serial synchrotron crystallography at room and cryogenic temperatures is described and evaluated. The system is compatible with the existing infrastructure for high‐throughput crystallography at synchrotrons and addresses major issues in maximizing data quantity and quality from large ...
Gabrielle Illava +12 more
wiley +1 more source
Biogenic Fraction Determination in Fuel Blends by Laser‐Based 14CO2 Detection
Advanced Photonics Research, Volume 2, Issue 3, March 2021., 2021 Laser‐based ultrasensitive detection of radiocarbon dioxide is demonstrated to be a revolutionary approach for the determination of biogenic fraction in biofuels and, more generally, bio‐based materials. Fossil versus biogenic fraction accurate determination plays a fundamental role for climate change assessment and mitigation.
Maria Giulia Delli Santi +8 more
wiley +1 more source
ROBL‐II at ESRF: a synchrotron toolbox for actinide research
Journal of Synchrotron Radiation, Volume 28, Issue 1, Page 333-349, January 2021., 2021 ROBL‐II at ESRF provides four experimental stations to investigate actinides with X‐ray absorption and emission spectroscopy, and with surface, high‐resolution powder, and single‐crystal X‐ray diffractometry.ROBL‐II provides four different experimental stations to investigate actinide and other alpha‐ and beta‐emitting radionuclides at the new EBS ...
Andreas C. Scheinost +16 more
wiley +1 more source