Institut de Ciències Fotòniques: Enviaments recents
Ara mostrant els elements 141-160 de 260
Nonlocal resources for quantum information tasks
This thesis focusses on the essential features of Quantum Theory that are systems in an entangled state and Bell nonlocal correlations. Here, we take the angle of a resource theory and are interested in understanding better ...
Quantum liquid droplets in a mixture of Bose-Einstein condensates
In this thesis, we report on the design and construction of a quantum simulator experiment using quantum gases in Spain. This experiment exploits mixtures of the three isotopes of potassium, which give access in an original ...
Device-independent certification of quantum resources
The last two decades have been a very fruitful period for the fundamental research related to quantum information theory. Today we have a fairly good understanding of how intrinsically quantum properties affect various ...
Quantum frecuency conversion for hybrid quantum networks
The ability to control the optical frequency of quantum state carriers (i.e. photons) is an important functionality for future quantum networks. It allows all matter quantum systems - nodes of the network - to be compatible ...
Nonlinear behaviour of ultracold atoms in optical dipole traps : large atomic light shifts, a quantum phase transition, and interaction-dependent dynamics
This thesis reports on theory and results from two experiments related to nonlinear behaviour in ensembles of optically-trapped ultracold atoms. The first experiment, performed at ICFO in Barcelona, regards the prediction ...
A versatile source of light-matter quantum states based on laser-cooled atoms
Quantum information is a fascinating field that studies situations in which information is encoded as quantum states. This encoding is affected by quantum physical effects (such as superposition or entanglement) and its ...
Attosecond X-ray absorption fine-structure spectroscopy in condensed matter
Attoscience aims to study electron dynamics in matter with unprecedented temporal resolution by using the shortest pulses generated on Earth. Currently, such resolution is only provided by sources that deliver attosecond ...
High-power fiber-laser-pumped picosecond nonlinear optical sources from the near- to mid-infrared
Ultrafast picosecond coherent sources in the near-to-mid-infrared (IR) spectral range are of great interest for a variety of applications such as pump-probe spectroscopy, remote sensing, photobiology and novel upconversion ...
Novel regimes of quantum optomechanics
In everyday life the impact of light on the motion of mechanical objects is negligible. However, modern experiments making use of high quality optical resonators are able to observe significant effects originating from the ...
Scalable techniques for graphene on glass
The combination of unique properties -high electrical mobility, thermal conductivity, transparency and mechanical flexibility- make graphene promising for a wide variety of applications, including transparent electrodes, ...
Quantum random number generators for industrial applications
Randomness is one of the most intriguing, inspiring and debated topics in the history of the world. It appears every time we wonder about our existence, about the way we are, e.g. Do we have free will? Is evolution a result ...
Single quantum emitter manipulation with 2D materials
Photonics aims to manipulate light by controlling its interactions with matter to enable novel optical technologies for communication, information processing and sensing. Current efforts strive to enter the regime of quantum ...
Unravelling motor protein organization on lysosomal membranes with super-resolution microscopy
This thesis first develops new methods for high-throughput and multi-color super-resolution microscopy (Chapters 2 and 3). Subsequently, I apply these methods to study the organization of motor proteins on the lysosome ...
Simulating quantum measurements and quantum correlations
This PhD thesis is focused on the quantum measurement simulability problem, that is, deciding whether a given measurement can be simulated when only a restricted subset of measurements is accessible. We provide an operational ...
Spontaneous parametric down-conversion sources for generation of atom-resonant quantum light
This thesis studies different designs of optical parametric oscillators as sources of atom-resonant quantum light resonant with the rubidium D1 line.We analyze the mode structure and filtering techniques in a conventional ...
Double resonant character in an optical cavity for high performance and stable polymer solar cells
Solution-processed thin film solar cells emerged as very promising photovoltaic technologies suitable for a low cost roll-to-roll upscale production. Such thin film character also ensures lightweight and flexibility for ...
Electron re-collision dynamics in strong mid-IR fields for diffraction imaging of molecular structure and its fragmentation
One of the grand challenges of modern science is to image chemical reactions and biological functions while they are taking place. To realize these molecular movie, experimental techniques need to resolve the relevant ...
Novel methods for plasmonic nanoparticles imaging inside cells using dark-field microscopy
The potential impact of noble metal nanoparticles (NPs) in diverse fields, particularly medicine, is tremendous. However, before NPs can be routinely used in clinical practices, it is fundamental to comprehensively study ...
Coherent sensing of magnetic waveforms with spin-squeezed atoms
Optical magnetometers use magnetically-sensitive atomic ensembles and optical read-out to detect the amplitude of magnetic fields. They have become the most sensitive instruments for measuring low-frequency magnetic fields ...
Nanophotonic antennas for enhanced single-molecule fluorescence detection and nanospectroscopy in living cells membranes
Single-molecule fluorescence spectroscopy has revolutionized the field of biophysical sciences by enabling visualization of dynamic molecular interactions and nanoscopic features with high spatiotemporal resolution. ...
