ÌÇÐÄTV

In a work appearing on the the group of Animesh Datta, with collaborators at the University of Nanjing, China and the University of Ottawa, Canada, have shown that even noisy and saturating detectors can approach shot-noise-limited detection if used judiciously. Shot-noise-limited optical detection is the first, and often the most challenging, step to quantum-enhanced optical sensing. This work uses a technique called weak-value amplification and enables, over a range of input light intensity well beyond the dynamic range of the photodetector, shot-noise-limited detection. Weak-value amplification relies on the principle that only a subset of the photons contains almost all of the information about the sensed object.

An exploding white dwarf star blasted itself out of its orbit with another star in a ‘partial supernova’ and is now hurtling across our galaxy at 900.000km/h, according to a new study led by Boris Gänsicke from the ÌÇÐÄTV Astronomy and Astrophysics group, published today in the . It opens up the possibility of many more survivors of supernovae travelling undiscovered through the Milky Way, as well as other types of supernovae occurring in other galaxies that astronomers have never seen before. Have a look at the ÌÇÐÄTV press release press release and the paper for free on

Scientists are a step closer to developing a fast and cost effective camera that utilises terahertz radiation, potentially opening the opportunity for them to be used in non-invasive security and medical screening.

A research team led by Professor Emma MacPherson and involving scientists from the Chinese University of Hong Kong has reached a crucial milestone towards developing single-pixel terahertz imaging technology for use in biomedical and industrial applications.

In a study to be published in the Astronomy & Astrophysics journal, a collaboration between the Italian National Institute for Astrophysics (INAF), the University of ÌÇÐÄTV and the Italian Space Agency (ASI) has achieved the first three-dimensional tomography of the magnetic fields in a solar tornado and have measured their faint polarimetric signals.

The constant motions of the Sun’s surface creates giant tornados in the chromosphere a few thousand kilometers in diameter. Like their name sakes on Earth they carry mass and energy high up into the atmosphere and are therefore keenly studied as energy channels to explain the extraordinary heating of the solar corona. The main building block of solar tornados are tangled magnetic fields. This work presents the first direct observation of the chromosphere magnetic field to reveal the magnetic nature of solar tornados.