Ion N Mihailescu

Professor Dr. Ion N. Mihăilescu (b. May 30, 1947, Slatina, Olt)

  • He graduated from the Faculty of Physics of the University of Bucharest, in July 1969, after specializing in Nuclear and Optical Physics, Spectroscopy and Plasma Physics; graduation thesis: Statistical fluctuations in nuclear reactions;
  • He defended his doctoral dissertation in July 1982 with the paper Interaction of 1.06 µm laser radiation with a duration of ms with vacuum metal targets;
  • From 1990 to today: first degree researcher, Institute of Atomic Physics;
  • From 1990 to today: professor, Faculty of Physics, University of Bucharest;
  • From 1975 until today: Head of the Laser-Surface-Plasma Interaction Laboratory.
  • Specializations: laser interactions, lasers and plasma physics, nanostructured thin film technology, nanopowder generation and characterization, physics and surface engineering, laser spectroscopy;
  • Other areas: biophysics and biomedicine, nano-bio-technologies, gases and bio-sensors, plasma and laser theory;
  • Current research interests: ultra-short pulse laser deposition, modification and characterization of thin nanostructured coatings, matrix assisted pulsed laser evaporation (MAPLE), additive laser processing, thin layer biomaterials, nano-medicine; tissue engineering, biomimetic metal implants, optoelectronics and sensors.

Prof. Dr. Ion N. Mihailescu is another legend of National Institute for Laser, Plasma and Radiation Physics (INFPLR). He has published numerous books and studies. He has over 634 ISI papers according to the Web of Knowledge, with over 9000 citations (according to Google scholar), international awards and medals. He is currently an Optics Fellow and was the first recipient (1994) of the Galileo Galilei Award from the International Optics Commission (ICO).

He is an honorary doctor of the University of Cergy-Pontoise, Paris, France, winner of the Romanian Academy Award (1973) and other international awards. He holds 24 patents, 3 of which are abroad and, last but not least, he has been the scientific leader of 50 Romanian and international doctors in laser physics and their applications in various fields, especially in biology and nano-medicine.

For more than half a century, the teacher’s life has been intertwined with lasers. And he lives, though blind, in light and for light. “I have a team of physicists and engineers, master students, doctoral students, but also many colleagues with international experience and dedication. They are “my eyes and my hands.” I also managed to bring in a chemist and a biologist. Interdisciplinarity is very important, because in certain projects, such as MAPLE, we can act on cancer cells with different substances, see the evolution in time or in fractions of a second, and we can compare possible combinations and treatment. ”

We then talked about another possible application, which aims to rebuild human organs. An equivalent of printing and cloning, which will certainly be widespread solutions in the next 20 years.

Apart from the projects in which nano-bio-technologies are involved, which are particularly attractive for the pharmaceutical industry, another trend that the teacher can talk about for hours on end is that of nanostructured thin films. “Think about it, we have rare, depleting metals on Earth that have special properties. We could not make a scalpel, let’s say, from such a material, we could not even make a blade, but the blade, an extremely thin layer that comes in direct contact with our area of ​​interest, we can cover it with a sheet with a film of this precious metal. “

I could not find out much about the military project, which targets satellites and drones, instead he told me about metamaterials, composite materials characterized by order in an apparent disorder, which can be classified and understood only with the help of quantum mechanics. They can be used to cleanse the environment.

The professor’s stories delicately intertwine the present, the past and the future, and weave a fine veil of mystery over the scientific research at Magurele. “Back then (the ’80s), we also worked here on Saturdays. And, if you haven’t heard the legend, I’ll tell you: the best experiments only work on Saturday, around 6 pm, when the program ends. I also checked to know that this is the case! ”

And again we return to Professor Agârbiceanu, to Horia Hulubei, and even to “Mr. Titi”. “What do you mean you don’t know who he is?” my interlocutor pretends to be outraged. “In his wisdom, Professor Horia Hulubei did not want a place on the road for the Institute of Atomic Physics, in the navel of Bucharest, as he had been proposed, but chose a nearby village, Magurele, and a building full of history, a property of the Academy. Romanian. ”

This mansion was part of the dowry estate of Mrs. Stanca, the wife of Mihai Viteazul, who became in the 19th century the property of Ioan Oteteleșanu, former Minister of Finance in Cuza’s government. His wife kept the house open to writers and personalities of the time, including Ion Slavici and Mihai Eminescu. “Here Eminescu wrote the famous poem Lacul. And to Eminescu, “according to the testimonies of the locals, Mr. Titi was called, I don’t know why.”

Then we go back to physics and he tells me about collaborating with the Nobel laureates, about the Laser Additive Manufacturing project that rebuilt the defective surfaces of expensive industrial equipment, thus saving hundreds of millions of dollars, about many important professors, students and PhD students. which he met, but also about “Biocombs4Nanofibers”.

The Bionic Combs Antiadhesive Project for Handling of Nanofibers offers a solution to the problem of technical processing and handling of nanofibers. The researchers found that Cribellate spiders have a comb in their anatomy with which they can manipulate and process nanofibers without sticking together, thanks to a special nanostructure, similar to fingerprints.

So the solution found by an international consortium, which includes INFLPR specialists, aims to create bionic “comb” structures on technical surfaces that are non-stick to nanofibers and, at the same time, will allow the handling of nanofibers. In addition, the project aims to create nanostructures that can prevent the adhesion of cells or other microorganisms, with direct applications in medical devices and implants.

I broke up with Professor Mihailescu after three hours and we met at the International Conference on Laser, Plasma and Radiation – Science and Technology (ICLPR-ST), which will take place on June 7-10, 2022 at the Palace of Parliament from Bucharest.

A short history of the Romanian laser

The history of the National Institute for Laser, Plasma and Radiation Physics is closely linked to the formation of outstanding scientific personalities, under the guidance of their mentors. One of the most appreciated students of Prof. Ion I. Agârbiceanu was acad. Valentin I. Vlad, who trained several generations of young researchers in fields such as nonlinear optics, holography and interferometry, Fourier optics, quantum optics, nanophotonics and so on

In 1969, together with George Nemeș, he made the first laser in the country with a solid active environment. His scientific findings include more than 170 papers published and presented at more than 200 national and international conferences, as well as four patents, including one in the United States. In 1978, he was the first Romanian physicist to be elected a Fellow by the American Society of Optics (OSA). He was a corresponding member of the Romanian Academy, vice-president and president of this supreme scientific forum.

In 1962, the first Romanian He-Ne laser was built and put into operation, with interior mirrors and thermal compensating bars, II Agârbiceanu, AAAgafiței, L. Blănaru, N. Ionescu-Pallas, IM Popescu, V. Vasiliu, VG Velculescu.

In 1968, the first Romanian laser with CO – II Agârbiceanu, AA Agafiței, L. Blănaru, V. Draganescu, IM Popescu, V. Vasiliu.

  • In 1969, the realization of the first laser with solid active environment in the country, G. Nemeș, VI Vlad.
  • The first Romanian solid body laser: the ruby ​​laser. Reported 1969-1970 by AA Agafiței, R.Dabu.
  • The first pulsed CO laser (TEA-CO with μs pulses), Ion Mihăilescu, Ileana Apostol, AI Ciura, C. Grigoriu, D. Drăgulinescu, 1978.
  • The first Romanian tunable laser, with dyes, 1975, Mihai Lucian Pascu.
  • The first frequency stabilized HeNe laser, in 1982, G. Popescu, C. Blănaru, M. Ristici.
  • The first laser alignment systems for large-scale constructions, starting in 1979, V. Vasiliu, M. Ristici, Dan Apostol.
  • The first Romanian CO laser (designed for technological applications) that emitted in a continuous wave and works in open mode; power of the beam 3000 W, 1987, I. Guțu.
  • The first professional hologram made in the country, 1970, by VIVlad.
  • The first laser spectrophotometer to measure traces of pesticides in wastewater, 1983, ML Pascu.
  • The first dye laser system for clinical treatments in ophthalmology, 1986, ML Pascu.
  • The first Romanian closed CO laser system for ophthalmic treatments, 1986, DC Dumitraș, DC Duțu.
  • The first Romanian YAG laser system: Nd for ophthalmological treatments, 1987, Aurel Stratan.
  • The first thin films produced by laser for technological and medical applications, 1985, IN Mihăilescu, Maria Dinescu, V. Christmas, Doina Christmas.
  • Since 1987, the development of laser systems for medical applications has begun in: neurosurgery, traumatology, recuperative medicine, dermatology, dentistry, ENT, rheumatology, ML Pascu, DC Dumitraș, IN Mihăilescu, M. Dinescu.
  • From 1985 to the present, fundamental and applied research on surface physics and the interaction of materials with lasers.

After 1989, the Institute no longer produced lasers. “It’s a shame, because at that time we had the ability to design and implement state-of-the-art systems and very importantly, the best ‘craftsmen’ in Romania worked for us: welders, technicians and turners, among others. We stopped producing lasers, but we continued researching and processing the materials with their help. Fortunately, we have developed applications for biomedicine, materials physics, optics, photochemistry, many of them in EU and NATO contracts. “ – Mr. Professor also told me.

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