● Optical design and measurement techniques,● Provide the optical know-how and optical design experience for multi-disciplinary product-related projects,● Build up and maintain contacts with a network of optical specialists and specialists in related disciplines,● Advise the management about optical matters/issues and road-mapping,● Coaching of colleagues in the field of optics.

Vestel is an ODM company focused on LED lighting sector. We carry out designs of optical systems for LED product range and all aspects of luminaire development and manufacturing, from optical design to full manufacturing of its products, including electronics design, mechanical design.Related activities:● Design and development of LED illumination systems, including lenses and reflectors,● Optical modelling,● Prototyping, testing and characterisation of new designs,●… Show more Vestel is an ODM company focused on LED lighting sector. We carry out designs of optical systems for LED product range and all aspects of luminaire development and manufacturing, from optical design to full manufacturing of its products, including electronics design, mechanical design.Related activities:● Design and development of LED illumination systems, including lenses and reflectors,● Optical modelling,● Prototyping, testing and characterisation of new designs,● Carry new designs from concept through to production,● Source and validate LEDs and optical elements conducive to volume production. Show less

Teaching graduate students the basic fundamentals of illumination and lighting focusing on the physics of illumination with respect to lighting technology and the quantitative aspects of lighting design.

Exploring the ultimate limits of laser-induced magnetization dynamics has been a subject of scientific curiosity in the past 15 years. In view of this, we focused on the study of the route of the all-optical magnetization reversal. Using a unique experimental technique allowed us to reveal the speed of magnetization reversal and showed that the reversal follows an unconventional linear path that does not involve precession but occurs via a strongly nonequilibrium state with no net magnetization.… Show more Exploring the ultimate limits of laser-induced magnetization dynamics has been a subject of scientific curiosity in the past 15 years. In view of this, we focused on the study of the route of the all-optical magnetization reversal. Using a unique experimental technique allowed us to reveal the speed of magnetization reversal and showed that the reversal follows an unconventional linear path that does not involve precession but occurs via a strongly nonequilibrium state with no net magnetization. We have also achieved a write-read time of 30 ps which is the fastest write-read event demonstrated for magnetic recording so far.Additionally, we studied the details of the mechanism of the ultrafast spin reversal in GdFeCo excited by a subpicosecond stimulus, which was used to heat the sample rapidly above its compensation temperature and initiate the spin reversal in an external magnetic field. Taking advantage of the element-specificity of the X-ray magnetic circular dichroism (XMCD) effect, we were able to follow the dynamic changes of each magnetic sublattice with femtosecond resolution. For this, we used a special technique, so-called “femtosecond slicing” (femtoslicing), and obtained 100 fs X-ray probe pulses. We have found that the Gd and Fe spins reverse their directions on substantially different time scales, leading to an unexpected occurrence of a transient ferromagnetic-like state with parallel alignment of the net magnetic moments of the Gd and Fe sublattices.The results obtained in these 4 years provide new insights into the fundamental limits on the speed of magnetic recording and information processing. Show less

● Design of the experiment for optimizing the deposition conditions of thin films using the sputtering targets,● Sputtering deposition (using DC and RF sputtering power sources) of thin metal films,● Characterization of the optical, electrical, mechanical and chemical properties, stress, adhesion, etch rate, crystalline and structure of the thin films,● SEM and TEM analysis for layer diffusion mechanism. Thin film and failure analysis● Lithography, wet and dry etch of various… Show more ● Design of the experiment for optimizing the deposition conditions of thin films using the sputtering targets,● Sputtering deposition (using DC and RF sputtering power sources) of thin metal films,● Characterization of the optical, electrical, mechanical and chemical properties, stress, adhesion, etch rate, crystalline and structure of the thin films,● SEM and TEM analysis for layer diffusion mechanism. Thin film and failure analysis● Lithography, wet and dry etch of various films on silicon wafers or glass,● Vacuum chamber maintenance, and electronic and mechanical repair,● Magnetron sputtering deposition and characterization of big area metal thin films. Show less