Institut de Ciències Fotòniques: Recent submissions
Now showing items 21-40 of 247
Solution-processed quantum dot infrared lasers
(English) Colloidal semiconductors quantum dots (CQDs) have emerged as a promising solutionprocessed gain material that can be engineered via low-cost and scalable chemical techniques. Owing to quantum confinement, their ...
Attosecond soft X-ray absorption revealing the ultrafast non-adiabatic dynamics of furan
(English) One of the fundamental goals of the physical chemistry community has always been to be able to follow the details of the evolution of chemical reactions in real-time. Besides the extreme temporal resolution ...
Eco-friendly solar cells with cation-engineered AgBiS2 nanocrystals
(English) Climate change and global energy demand urge the development of renewable energy sources for worldwide power supply. Photovoltaic devices that convert solar energy directly into electricity are the most promising, ...
Environmentally-friendly perovskite nanocrystals based on titanium and tin
(English) The availability of energy is a fundamental ingredient for the development of society. However, the intense consumption of fossil fuels as an energy resource since the second industrial revolution has caused a ...
Fluorescence quantum yield and the open circuit voltage in perovskite solar cells
(English) To mitigate the energy and climate crisis we are already facing and address the increasing energy consumption, it is essential to foster energy transition strategies. The energy transition success largely depends ...
Multiple light scattering in atomic media : from metasurfaces to the ultimate refractive index
(English) Our ability to confine, guide, and bend light has led to astonishing technological achievements, playing a fundamental role in diverse fields like microscopy, photochemistry, telecommunications or material design. ...
Graphene based optical interconnects and IR photodetectors
(English) Despite the extensive research in the semiconductor industry, Moore’s law is finally slowing down due to increased complexity. Hence, intense efforts are being carried out to explore hybrid solutions by adding ...
Mid-infrared surface sensing based ontTwo-dimensional materials
(English) Mid-infrared (mid-IR) spectroscopy in the wavelength region between 2 and 20 µm is a powerful technique to identify vibrational absorption signatures of molecules, finding in this way extensive applications in ...
Raman dressed Bose-Einstein condensates with tunable interactions: topological gauge theories and supersolids
(English) The exquisite control available in atomic ultracold quantum gases experiments makes them an ideal candidate for quantum simulation of diverse topics ranging from high energy physics and analogue quantum gravity ...
Quantum-enhanced imaging with SPAD array cameras
(English) Entangled photon pairs can enhance optical imaging capabilities. Phase imaging allows detecting fine detail of transparent samples without potentially invasive fluorescent labelling, and here entanglement enables ...
Investigating quantum many-body systems with tensor networks, machine learning and quantum computers
(English) We perform quantum simulation on classical and quantum computers and set up a machine learning framework in which we can map out phase diagrams of known and unknown quantum many-body systems in an unsupervised ...
Contributions to nanophotonics: linear, nonlinear and quantum phenomena
(English) Nanophotonics can be defined as the science and technology studying the control optical fields at the nanoscale and their interaction with matter. In order to spatially control such fields we would need structures ...
Resource theories of quantum dynamics
(English) As one of our most successful theories, quantum theory has greatly strengthened our understanding of nature and significantly advanced technologies. Specifically, quantum effects provide advantages in a broad ...
Squeezed-ligh-enhanced magnetometry in a high density atomic vapor
(English) This thesis describes experiments that employ squeezed light to improve the performance of a sensitive optically-pumped magnetometer (OPM). The squeezed light source employs parametric amplification of vacuum ...
Quantum many-body physics with ultracold atoms and molecules: exact dynamics and machine learning
(English) Quantum many-body physics poses a substantial computational challenge resulting from the exponential growth of the wave function complexity and many non-trivial correlations encoded in it. Studying many-body ...
Synthetic quantum matter using atoms and light
Atomic and optical physics are two fields closely connected by a shared range of energy scales, and the interactions between them. Atoms represent the most fundamental components of matter, and interactions with electromagnetic ...
Laser-induced electron interferences from atoms and molecules
Since discovering wave-particle duality, science has changed our perception of light and matter, especially at the subatomic level. Thanks to such discoveries, we have been able to develop and expand our scientific knowledge ...
Development of novel multimodal light-sheet fluorescence microscopes for in-vivo imaging of vertebrate organisms
The observation of biological processes in their native environments is of critical importance for life science. While substantial information can be derived from the examination of in-vitro biological samples, in-vivo ...
Atomic imaging of complex molecular
One of the significant challenges of modern science is to track and image chemical reactions as they occur. The molecular movies, the precise spatiotemporal tracking of changes in their molecular dynamics, will provide a ...
Quantum Optics at its best: from quantum interferometry to quantum metrology
Quantum optics experiments are currently the most advanced techniques to under- stand, verify and simulate quantum phenomena. However, to access all the perfor- mance available in quantum states of light, one needs to ...
