Now showing items 21-40 of 242

    Complex systems for quantum technologies 

    Braungardt, Sibylle (Date of defense: 2011-07-12)

    Continuous-wave optical parametric oscillators and frequency conversion sources from the ultraviolet to the mid-infrared 

    Devi, Kavita (Date of defense: 2013-10-24)

    High-power, continuous-wave (cw) optical parametric oscillators (OPOs), from the ultraviolet (UV) and visible to the near- and mid-infrared (IR) wavelength range, are of interest for a variety of applications such as ...

    Contributions to nanophotonics: linear, nonlinear and quantum phenomena 

    Roque Fernández, Pablo Manuel de (Date of defense: 2022-10-18)

    (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 ...

    Control of optical fields and single photon emitters by advanced nanoantenna structures 

    Neumann, Lars (Date of defense: 2012-04-18)

    Un tema central en la ciencia y la tecnología es la exploración y explotación de sistemas cada vez más pequeños por medio de técnicas ópticas. A menudo, la longitud de onda viene dictada por el sistema de interés: los ...

    Controlling interactions in quantum materials : from a microscopic description to quantum simulation 

    Julià Farré, Sergi (Date of defense: 2022-06-28)

    The last decades have witnessed impressive technical advances in all the fields of quantum science, including solid-state systems or atomic, molecular, and optical physics, allowing one to control materials at the microscopic ...

    Controlling the multipolar interference of nanoantennas 

    Hancu, Ion Michael (Date of defense: 2019-01-18)

    The emission and detection of light is a main pillar of both fundamental research and the advancement of modern technologies. From digital communications and quantum computing to novel cancer treatments and faded jeans, ...

    Copper indium sulfide colloidal quantum dot solar cells 

    So, David (Date of defense: 2016-10-19)

    The ubiquity of solar energy conversion technology is an exciting target which we aspire for in this century. Colloidal quantum dot (CQD) solar cells are an attractive platform, being low-cost and allowing facile control ...

    Correlates of cerebral vasoreactivity measured by non-invasive diffuse optical measurements as biomarkers of brain injury risk 

    Gregori Pla, Clara (Date of defense: 2019-03-06)

    I have used and developed a practical new platform in the clinics for the noninvasive estimation of cerebral hemodynamics. The latform combines two diffuse optical techniques: near-infrared spectroscopy and diffuse ...

    Demonstration of new experimental schemes for imaging and sensing: from quantum to classical and back 

    Urrego González, Daniel Fernando (Date of defense: 2023-11-14)

    (English) This Ph.D. thesis presents research in imaging and optical sensing, exploring novel concepts, and diverse applications. The experimental schemes put forward here are based on simulating specific aspects of quantum ...

    Desarrollo y validación de una plataforma optofluídica ultrasensible para la detección especifíca y selectiva de mercadores tumorales en oncología 

    Ortega. M, María A. (Date of defense: 2015-11-11)

    Nowadays cancer is a devastating illness, so its early diagnosis could represent a powerful advantage in the struggle to eradicate it. The most recent technologies allowed the development of sensing platforms that led to ...

    Detection of a single erbium ion in a nanoparticle 

    Deshmukh, Chetan (Date of defense: 2022-04-29)

    Encoding information into quantum mechanical properties of a system can lead to applications many fields, including computing and communication. Devices that will enable these applications could be part of a quantum network ...

    Detection of particles, bacteria and viruses using consumer optoelectronic components 

    Hussain, Rubaiya (Date of defense: 2022-07-01)

    The focus of this thesis is on the design, development and validation of two novel photonic sensors for the detection and characterisation of industrial and biological samples. The first one is a PSA in a collimated beam ...

    Deterministic control of nanoantenna and single-photon emitter interaction at the nanoscale 

    Palombo Blascetta, Nicola (Date of defense: 2021-03-24)

    The study of light-matter interaction at the nanoscale is a very promising field of research, providing the possibility to manipulate the interaction with single quantum systems like single atoms, molecules, atomic defects ...

    Development and application of localization-based microscopy methods to study the structure and dynamics of chromatin through the process of cellular differentiation 

    Gómez García, Pablo (Date of defense: 2020-04-24)

    Recent advancements in single-molecule localization-based microscopy have made it possible to visualize biological structures and dynamic processes within the cell with unprecedented spatial resolution. Determining the ...

    Development and study of novel mid-infrared frequency conversion sources 

    Nandy, Biplob Kumar (Date of defense: 2020-12-02)

    Tunable narrow-linewidth and broadband laser sources in the mid-infrared (mid-IR) wavelength range are extremely desirable in all time scales for their several useful applications in spectroscopy, imaging, optical communication ...

    Development of a high intensity Mid-Ir OPCPA pumped by a HO:YLF amplifier 

    Sánchez Peacham, Daniel Alexander (Date of defense: 2020-01-27)

    The continuous development of laser sources delivering ultra-short light pulses underpins much of the current progress in experimental science, particularly in the domain of physics concerned with strong-field phenomena. ...

    Development of novel imaging tools for selected biomedical applications 

    Olarte, Omar E. (Date of defense: 2014-03-20)

    In the quest for better and faster images of cellular and subcellular structures, biology-oriented optical microscopes have advanced significantly in the last few decades. Novel microscopy techniques such as non-linear ...

    Development of novel multimodal light-sheet fluorescence microscopes for in-vivo imaging of vertebrate organisms 

    Bernardello, Matteo (Date of defense: 2022-06-14)

    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 ...

    Device-independent certification of quantum resources 

    Supic, Ivan (Date of defense: 2018-09-19)

    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 ...

    Device-independent information protocols: measuring dimensionality, randomness and nonlocality 

    Gallego López, Rodrigo (Date of defense: 2013-02-22)

    The device-independent formalism is a set of tools to analyze experimental data and infer properties about systems, while avoiding almost any assumption about the functioning of devices. It has found applications both in ...