Outputs (373)

A CMOS SPAD Line Sensor With Per-Pixel Histogramming TDC for Time-Resolved Multispectral Imaging (2019)
Journal Article

A 512 × 16 single photon avalanche diode (SPAD)-based line sensor is designed in a 0.13- μm CMOS image sensor technology for time-resolved multispectral beam scanned imaging. The sensor has 23.78- μm pixel pitch and incorporates one SPAD array with 4... Read More about A CMOS SPAD Line Sensor With Per-Pixel Histogramming TDC for Time-Resolved Multispectral Imaging.

A many-core CPU prototype of an MCAO and LTAO RTC for ELT-scale instruments (2019)
Journal Article

We propose a many-core CPU architecture for Extremely Large Telescope (ELT) scale adaptive optics (AO) real-time control (RTC) for the multi-conjugate AO (MCAO) and laser-tomographic AO (LTAO) modes. MCAO and LTAO differ from the more conventional si... Read More about A many-core CPU prototype of an MCAO and LTAO RTC for ELT-scale instruments.

Laboratory demonstration of an alternative laser guide stars wavefront sensing technique—projected pupil plane pattern (2019)
Journal Article

Adaptive optics (AO) is widely used in optical/near-infrared telescopes to remove the effects of atmospheric distortion, and laser guide stars (LGSs) are commonly used to ease the requirement for a bright, natural reference source close to the scient... Read More about Laboratory demonstration of an alternative laser guide stars wavefront sensing technique—projected pupil plane pattern.

Coulomb anti-blockade in a Rydberg gas (2019)
Journal Article

We perform a comprehensive investigation of the coupling between a Rydberg-dressed atomic gas and an ultra-cold plasma. Using simultaneous time-resolved measurements of both neutral atoms and ions, we show that plasma formation occurs via a Coulomb a... Read More about Coulomb anti-blockade in a Rydberg gas.

Efficient implementation of pseudo open loop control for adaptive optics on Extremely Large Telescopes (2019)
Journal Article

Closed-loop adaptive optics systems which use minimum mean square error wavefront reconstruction require the computation of pseudo open loop wavefront slopes. These techniques incorporate a knowledge of atmospheric statistics which must therefore be... Read More about Efficient implementation of pseudo open loop control for adaptive optics on Extremely Large Telescopes.

The Dynamics and Distribution of Angular Momentum in HiZELS Star – Forming Galaxies at z = 0.8 – 3.3 (2019)
Journal Article

We present adaptive optics assisted integral field spectroscopy of 34 star–forming galaxies at z = 0.8–3.3 selected from the HiZELS narrow-band survey. We measure the kinematics of the ionised interstellar medium on ∼1 kpc scales, and show that the g... Read More about The Dynamics and Distribution of Angular Momentum in HiZELS Star – Forming Galaxies at z = 0.8 – 3.3.

VasoTracker, a Low-Cost and Open Source Pressure Myograph System for Vascular Physiology (2019)
Journal Article

Pressure myography, one of the most commonly used techniques in vascular research, measures the diameter of isolated, pressurized arteries to assess the functional activity of smooth muscle and endothelial cells. Despite the widespread adoption of th... Read More about VasoTracker, a Low-Cost and Open Source Pressure Myograph System for Vascular Physiology.

Mitochondrial ATP production provides long-range control of endothelial inositol trisphosphate–evoked calcium signaling (2018)
Journal Article

Endothelial cells are reported to be glycolytic and to minimally rely on mitochondria for ATP generation. Rather than providing energy, mitochondria in endothelial cells may act as signaling organelles that control cytosolic Ca2+ signaling or modify... Read More about Mitochondrial ATP production provides long-range control of endothelial inositol trisphosphate–evoked calcium signaling.

The Shapes of the Rotation Curves of Star-forming Galaxies Over the Last ≈ 10 Gyr (2019)
Journal Article

We analyse maps of the spatially-resolved nebular emission of ≈1500 star-forming galaxies at z ≈ 0.6–2.2 from deep KMOS and MUSE observations to measure the average shape of their rotation curves. We use these to test claims for declining rotation cu... Read More about The Shapes of the Rotation Curves of Star-forming Galaxies Over the Last ≈ 10 Gyr.

Full-Field Terahertz Imaging at Kilohertz Frame Rates Using Atomic Vapor (2020)
Journal Article

There is much interest in employing terahertz (THz) radiation across a range of imaging applications, but so far, technologies have struggled to achieve the necessary frame rates. Here, we demonstrate a THz imaging system based upon efficient THz-to-... Read More about Full-Field Terahertz Imaging at Kilohertz Frame Rates Using Atomic Vapor.

Representative optical turbulence profiles for ESO Paranal by hierarchical clustering (2018)
Journal Article

Knowledge of the optical turbulence profile is important in adaptive optics (AO) systems, particularly tomographic AO systems such as those to be employed by the next generation of 40-m class extremely large telescopes. Site characterization and moni... Read More about Representative optical turbulence profiles for ESO Paranal by hierarchical clustering.

High-speed dual color fluorescence lifetime endomicroscopy for highly-multiplexed pulmonary diagnostic applications and detection of labeled bacteria (2018)
Journal Article

We present a dual-color laser scanning endomicroscope capable of fluorescence lifetime endomicroscopy at one frame per second (FPS). The scanning system uses a coherent imaging fiber with 30,000 cores. High-speed lifetime imaging is achieved by distr... Read More about High-speed dual color fluorescence lifetime endomicroscopy for highly-multiplexed pulmonary diagnostic applications and detection of labeled bacteria.

GRIS: The GREGOR Infrared Spectrograph (2012)
Journal Article