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Lab-on-a-chip (LoC) devices are extremely promising to bring diagnostic functions at the point-of-care. The LoC paradigm can be resumed in the will to emulate all the functionalities of a modern analysis lab onboard a portable platform, or at least a compact system, realizable at contained costs. At this scope, an important goal is the design of imaging schemes able to work out of the lab.
Ghost imaging (GI) exploits the intensity correlations of light to reconstruct an object. A “ghost image” is obtained by correlating the total transmitted or reflected intensity of an illuminated object with the intensity of a highly-correlated reference beam which itself doesn't interact with the object. Intriguingly, the spatial resolution of the image is provided by the non-interacting reference...
The development of atom interferometry in the last few decades has led to high precision measurements of inertial effects and tests of fundamental physics [1]. New methods for higher sensitivity atom interferometers (AIs) are being explored, in particular the interrogation of atoms with optical cavities. The benefits of optical cavities would be higher optical power allowing large momentum transfer...
Optical vortices, carrying a doughnut-shaped spatial form and an orbital angular momentum assigned with topological charge), have received attention in diverse application fields, for instance, high spatial resolution microscopies, quantum communications, and chiral materials processing. The aforementioned applications require highly pulsed optical vortex sources with wavelength versatility. In general,...
Increasing industrial precision requires innovative and highly sensitive methods for non-contact measurement, which can be used to measure distances to objects, as well as the relevant parameters such as displacement and surface profiles. There are various optical techniques for distance measurement which are used depending on required accuracy, working range and applications. The most common techniques...
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