UOP Research

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The recent outstanding progress in the generation, processing and manipulation of ultrashort pulses of light has accelerated tremendously the use and spread of ultrafast all-optical techniques to many domains of physics, chemistry, biology, material processing, biomedical engineering, etc. These techniques are also of extreme importance for the development of next-generation ultra-high-speed telecommunication and information processing networks and they are expected to constitute the basis of future ultrafast computer systems. With all these applications comes the need for better control of ultrashort light pulses (from the femtosecond to the nanosecond regimes) to tailor them to the needs of ever-more-specific functionalities.

Our group is investigating and developing novel techniques and technologies to tackle this increasingly important and challenging task. Our expertise ranges from fundamental physics studies to more applied science and engineering issues within this exciting niche of knowledge.

A brief overview of some of the specific topics we are currently working on is given below. Please feel free to navigate through these links at your leisure ... and thank you for your interest in our research activities!

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Research Topics  

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  Integrated Photonics

 

The general idea about integrated photonics is the use of photons instead of electrons, in order to create optical circuits similar to those in conventional electronics. Passive and active elements including basic component for the generation, focusing, splitting, coupling, isolation, polarization control, modulation, light detection should be ideally all integrated on a single substrate and connected by optical waveguides. Thus, by analogy to micro-electronics, integrated photonics tends to use the Complementary Metal Oxide Semiconductor (CMOS) compatible technologic platform to realize devices in a more compact way i.e. with size of the order of the micron, by integrating the required functionality on a single chip but also to reduce the effective cost of production. Material characterization, micro-fabrication and development of new devices and schemes taking advantage of non-linear phenomenon are actually studied by our research team mainly for laser and telecom applications.  

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  Nonlinear and Singularity Optics

 

Nonlinear optics is a field of science and engineering that focuses on studying phenomena that occur as a consequence of the modification of the optical properties of a material system following the presence of high intensity light. Due to the medium nonlinearity, it is possible to create various wave mixing processes in which energy is transferred between different waves in the system (e.g. second harmonic generation, three-wave mixing, four-wave mixing etc.).

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  Terahertz Photonics

Terahertz radiation lies at the edge of the electronics and the photonics realm and boost unique features able to strongly impact several strategic areas, such as security (high-resolution, non-ionizing body-scanners), quality control (common packaging materials are transparent to THz radiation), and eventually high data rate wireless communication. Furthermore, intense THz pulses can be employed to investigate intriguing light-matter interaction regimes, where the medium response occur on the time scale of the electric field oscillation. The UOP group boosts a large number of on going projects harnessing both the fundamental and the applied potentiality of THz radiation. Starting from the development of intense THz sources (we developed indeed some of the most intense table-top THz sources currently available), we exploit the high field for investigating nonlinear light matter interaction at THz frequencies. Furthermore, we developed a near-field THz microscope, and we are developing guided wave configuration and optical active components at THz frequencies, also exploiting magnetic-based effects.

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Completed  Researches

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