CURRENT RESEARCH FIELD: - High power laser management - Research and development of laser and laser related systems, instruments and technologies

EXPERTISE AND COMPETENCES:

- Development and circuit design for analog electronics

- Development and circuit design for digital electronics: large experience with Intel/Altera FPGA technology

- Large experience in schematics and PCB (multilayer) design

-  Experience in developing opto-electronics and control systems for high power lasers

LIST OF 5 SELECTED ARTICLES:

1. S. Orobeti, L. E. Sima, I. Porosnicu, C. Diplasu, G. Giubega, G. Cojocaru, R. Ungureanu, C. Dobrea, M. Serbanescu, A. Mihalcea, E. Stancu, C.E. Staicu, F. Jipa, A. Bran, E. Axente, S. Sandel, M. Zamfirescu, I. Tiseanu, F. Sima, ”First in vitro cell co-culture experiments using laser-induced high energy electron FLASH irradiation – potential for anti-cancer therapeutic strategies”, preprint Research Square DOI: 10.21203/rs.3.rs-3893842/v1 (2024)

2. R. Dabu, R. Banici, C. Blanaru, C.Fenic, L. Ionel, F. Jipa, L. Rusen, S. Simion, A. Stratan, M. Ulmeanu, D. Ursescu, M. Zamfirescu, “TEWALAS 20-TW femtosecond laser facility” – Journal of Optoelectronics and Advanced Materials, Vol. 12, No. 1, Pag. 35 – 38, 2010;

3. Rusen, L.; Cazan, M.; Mustaciosu, C.; Filipescu, M.; Sandel, S.; Zamfirescu, M.; Dinca, V.; Dinescu, M.; "Tailored topography control of biopolymer surfaces by ultrafast lasers for cell - substrate studies" – Applied Surface Science, Vol. 302, Pag. 256-261, 2014;

4. S. Simion, C. Blanaru, D.Ursescu, “Design consideration for an Interferometer for Coherent Combination of Ultrashort Lase Pulses” – Romanian Reports in Physics, Vol. 62, No. 3, Pag. 644-651, 2010;

5. Zorila, A; , Simion S; Rusen L; "Real-time detection of optical damage induced by high-power laser pulses"; UPB Scientific Bulletin, Series A: Applied Mathematics and Physics vol 75 (4) pag 241-250, 2013;

ResearcherID: K-1418-20

Full CV

CURRENT RESEARCH FIELD: Spatial and temporal characterization of ultra-intense laser pulses at the interaction plane.

EXPERTISE AND COMPETENCES:

• Metrology of high-intensity ultrashort laser pulse beams;

• Alternative radiation sources from ultraintense laser-matter interaction: generation, characterization, and applications;

• Automation of data  acquisition systems and real-time analysis;

• Ray-tracing modelling for optical experimental setups ;

• Operation and maintenance of high-power laser systems;

LIST OF 5 SELECTED ARTICLES:

1. Marcu A.; Stafe M.; Barbuta M.; Ungureanu R.; Serbanescu M.; Calin B.; Puscas N., Photon energy transfer on titanium targets for laser thrusters.High Power Laser Science and Engineering, HPLS, 10, e27, 2022

2. S.Yu. Mironov, J. Wheeler, R. Gonin, G. Cojocaru, R. Ungureanu, R. Banici, M. Serbanescu, R. Dabu, G. Mourou and E.A. Khazanov " 100 J-level pulse compression for peak power enhancement" Quantum Electronics, Volume 47, Number 3, (2017)

3. Ungureanu, R. G.; Grigore, O. V.; Dinca, M. P.; Cojocaru, G. V.; Ursescu, D.; Dascalu, T.; "Multiple THz pulse generation with variable energy ratio and delay"; LASER PHYSICS LETTERS 12 (4) 45301 (2015).

4. R. G. Ungureanu, G. V. Cojocaru, R. A. Banici, D. Ursescu , Phase measurement in long chirped pulses with spectral phase jumps, OPTICS EXPRESS 22, 15918-15923 (2014).

5.R. A. Banici, G. V. Cojocaru, R. G. Ungureanu, R. Dabu, D. Ursescu, and H. Stiel, Pump energy reduction for a high-gain Ag X-ray laser using one long and two short pump pulses, OPTICS LETTERS 37, 5130-5132 (2012).

ResearcherID: B-6976-2017
ORCID: 0000-0003-4920-2378

Full CV

CURRENT RESEARCH FIELD: Particle acceleration by ultra-intense laser-plasma interaction and applications

EXPERTISE AND COMPETENCES:

• Laser-plasma particle acceleration (solid and gaseous targets)
• Temporally resolved diagnostics of laser produced plasma for electron acceleration
• Energetic particle beam detection (e.g. magnetic analysis of accelerated particle)
• Ultra-fast pulsed plasma - generation, diagnostics and applications, including capillary discharges as waveguide for high power laser pulses used for electron acceleration.

LIST OF 5 SELECTED ARTICLES:

CURRENT RESEARCH FIELD: High power laser control and command

EXPERTISE AND COMPETENCES:

• PW laser class management and control;
• Fiber lasers, laser diode pumped with solid medium, lasers pumped solid with flash, laser diode power;
• Command and control electronics design: command and control devices with microsystems (ATMEGA CPU, AVR Assembler), analog and digital electronics;
• Software Development microcontrollers (AVR Assembler real time software);
• Power electronics design: adjustable high voltage sources and simmer sources, power supply switching, general power sources, electronic drives;
• Design optics, optical lasers aligniament.

LIST OF 5 SELECTED ARTICLES:

ResearcherID: F-9964-20
ORCID: 0000-0026-3792-549

Full CV

CURRENT RESEARCH FIELD: Coherent beam combination of high-power femtosecond laser pulses

EXPERTISE AND COMPETENCES:

Solid-state laser physics and engineering

Nonlinear optics

Technological and medical laser applications

Research and development of high-power femtosecond laser systems

LIST OF 5 SELECTED ARTICLES:

1. Intracavity pumped nanosecond optical parametric oscillator emitting in the eye-safe range,

R. Dabu, C. Fenic, A. Stratan, Applied Optics, Vol. 40 (24), 4334-4340 (2001).

2. Very broad gain bandwidth parametric amplification in nonlinear crystals at critical wavelength degeneracy,

R. Dabu, Optics Express, 18, 11689-11699 (2010).

3.Femtosecond Laser Pulses Amplification in Crystals,

Dabu, Razvan, Crystals, 9 (7), 347 (2019)

4.High-energy hybrid femtosecond laser system demonstrating 2×10 PW capability,

François Lureau, Guillaume Matras, Olivier Chalus, Christophe Derycke, Thomas Morbieu, Christophe Radier, Olivier Casagrande, Sébastien Laux, Sandrine Ricaud, Gilles Rey, Alain Pellegrina, Caroline Richard, LaurentBoudjemaa, Christophe Simon-Boisson, Andrei Baleanu, Romeo Banici, Andrei Gradinariu, Constantin Caldararu,Bertrand De Boisdeffre, Petru Ghenuche, Andrei Naziru, Georgios Kolliopoulos, Liviu Neagu, Razvan Dabu, IoanDancus, Daniel Ursescu, High Power Laser Science and Engineering, 8 e43 (2020)

5.Optical parametric amplification at critical wavelength degeneracy - a proposed approach for 100-PW class femtosecond laser development,

Dabu, Razvan, OSA Continuum, 4 (5), 1658 (2021).

ResearcherID: B-9623-2011
ORCID: 0002-2936-9050

Full CV

CURRENT RESEARCH FIELD: Laser-matter interactions and Laser assisted Nanostructure fabrications techniques

EXPERTISE AND COMPETENCES:

• Laser induced structural modifications
• Laser ablation processes
• Laser plume propagation and interactions with obstacles
• Laser induced electromagnetic waves
• Vapour-Liquid-Solid nanostructure grow
• Kirkendall effect

Computers:

• Distributed - Command and control system networks
• Graphical - Command and control interfaces
• Computer simulations (PIC, Monte-Carlo) for electromagnetic wave and plasma plume propagation and interactions
• Programming - (C (++), (Turbo/)Pascal, (Visual/) Basic, Python), Graphics (GTK, Blender), Databases (MySQL)
• Operation systems (LINUX, WINDOWS).

LIST OF 5 SELECTED ARTICLES:

1. Elena Ionita, Aurelian Marcu, Mihaela Temelie, Diana Savu, Mihai Serbanescu and Mihai Ciubotaru, “Radiofrequency EMF irradiation effects on pre-B lymphocytes undergoing somatic recombination”, Sci. Rep.11, (2021), pp.12651

2. A. Marcu, M. Stafe, M. Barbuta, R. Ungureanu, M. Serbanescu, B. Calin and N. Puscas, “Photon energy transfer on titanium targets for laser thrusters”, High Power Laser Science and Engineering, 10 (2022)pp. 1 – 14

3. Aurelian Marcu, Mihai Stafe, Andreea Groza, Mihai Serbanescu, Razvan Ungureanu, Gabriel Cojocaru, Constantin Diplasu, Bogdan Mihalcea, Mihai Ganciu Constantin Negutu, Georgiana Giubega and Niculae Puscas, “Correlation of Laser-Accelerated Electron Energy with Electromagnetic Pulse Emission from Thin Metallic Targets”, Appl. Sci. (2025) 5, pp. 29

4.  A. Marcu, M. Stafe, M. Barbuta, R. Ungureanu, M. Serbanescu, B. Calin and N. Puscas, “Photon energy transfer on titanium targets for laser thrusters”, High Power Laser Science and Engineering, 10 (2022)pp. 1 – 14

 5.  Mihai     Stafe, Aurelian Marcu, Niculae N. Puscas, “Pulsed Laser Ablation  of Solids”, Springer Series in Surface Science 53, Springer-Verlag Berlin Heidelberg ISBN 978-3-642-40977-6, (2014)

ResearcherID: O-6647-2016
ORCID: 0000-0002-6213-4368

Full CV

CURRENT RESEARCH FIELD: High power laser management

EXPERTISE AND COMPETENCES:

Operation and maintenance of PW-class double CPA laser system developed by Thales and by Amplitude

Developement of experiments using high power laser system from CETAL-PW infrastructure

Spatio-temporal characterization of ultra-short laser pulses using dedicated equipaments such as: Wizzler, Tundra, Spider, Phasics

Development of secondary sources of radiation as: High Harmonic Generation -HHG in gaseous targets, soft X-Ray laser emission on solid targets, electrons and protons acceleration on gaseous and solid targets, using high power lasers systems

LIST OF 5 SELECTED ARTICLES:

1. Gabriel V Cojocaru, Razvan G Ungureanu, Romeo A Banici, Daniel Ursescu, Olivier Delmas, Moana Pittman, Olivier Guilbaud, Sophie Kazamias, Kevin Cassou, Julien Demailly, Olivier Neveu, Elsa Baynard, David Ros, ''Thin film beam splitter multiple short pulse generation for enhanced Ni-like Ag x-ray laser emission'', Optics Letters, Volume 39, Issue 8, pp. 2246-2249, Apr. 2014 (AIS:1,0)
2. Gabriel V Cojocaru, Razvan G Ungureanu, Romeo A Banici, Daniel Ursescu, Olivier Guilbaud, Olivier Delmas, Andrea Le Marec, Olivier Neveu, Julien Demailly, Moana Pittman, Sophie Kazamias, Sameh Daboussi, Kevin Cassou, Lu Li, Annie Klisnick, Phillipe Zeitoun, David Ros, ''One long and two short pumping pulses control for plasma x-ray amplifier optimization'', Optics Express, Volume 24, Issue 13, pp. 14260-14270, June. 2016 (AIS:1,0)
3. S.Yu. Mironov, J. Wheeler, R. Gonin, G. Cojocaru, R. Ungureanu, R. Banici, M. Serbanescu, R. Dabu, G. Mourou and E.A. Khazanov, 100 J-level pulse compression for peak power enhancement, Quantum Electronics 47 (3) 173 (2017).
4. Kunzel, S; Cojocaru, G V ; Gartner, F ; Aurand, B; Li, L ; Ursescu, D ; Zeitoun, P ; Oliva, E ; Zielbauer, B ; Kuehl, T; Fajardo, M, Experimental demonstration of a collinear triple pulse grazing-incidence pumping scheme for a transient collisional pumped x-ray laser, J. Phys. B: At. Mol. Opt. Phys. 49, 215601 (2016).

ResearcherID: M-2388-2018
ORCID: 0000-0002-5877-2607

Full CV

CURRENT RESEARCH FIELD: High power laser experiments

EXPERTISE AND COMPETENCES:

Metrology of high-intensity ultrashort laser pulse beams;

Producing  radiation sources from ultraintense laser-matter interaction:  generation, characterization, and applications;

LIST OF 5 SELECTED ARTICLES:

1. Akinobu Niozu, Liviu Neagu & all "Characterizing crystalline defects in single nanoparticles from angular correlations of single-shot diffracted X-rays". IUCrJ February 2020
2. Nishiyama, Toshiyuki, Liviu Neagu & all, “Ultrafast Structural Dynamics of Nanoparticles in Intense Laser Fields”, Volume: 123 Issue: 12 PHYSICAL REVIEW LETTERS September 2019
3. Ong, J. F.; Seto, K.; Berceanu, A. C.; Aogaki, S.; Neagu, L. “Feasibility studies of an all-optical and compact gamma-ray blaster using a 1PW laser pulse” (vol 61, 084009, 2019) PLASMA PHYSICS AND CONTROLLED FUSION, August 2019
4. Fukuzawa, Hironobu, , Liviu Neagu & all “Real-time observation of X-ray-induced intramolecular and interatomic electronic decay in CH2I2”, Volume: 10 Article Number: 2186, NATURE COMMUNICATIONS, May 2019
5. Kumagai, Yoshiaki, Liviu Neagu & all “Following the Birth of a Nanoplasma Produced by an Ultrashort Hard-X-Ray Laser in Xenon Clusters” Volume: 8, Issue: 3 PHYSICAL REVIEW X, August 2018

ResearcherID: A-1401-20
ORCID: 0000-0003-4920-23

Full CV

CURRENT RESEARCH FIELD: High-power laser interaction with matter. Charged particle acceleration in laser-plasma interaction

EXPERTISE AND COMPETENCES:

• Nuclear physics, nuclear fission, modelling of prompt neutron emission in fission. 
• Laser-plasma particle acceleration and charged particle detection.
• Simulations of various detection configurations for high-power laser-plasma accelerated protons and electrons.
• Programming in Fortran.

LIST OF 5 SELECTED ARTICLES:

1. D. Ticos, A. Scurtu, M. Oane, C. Diplasu, G. Giubega, I. Calina, C.M. Ticos, “Complementary dosimetry for a 6 MeV electron beam”, Results in Physics 14 (2019), art. no. 102377.
2. G.Giubega, A.Tudora, F.-J.Hambsch, “Local and global even-odd effects in prompt emission in fission”, Book Series: EPJ Web of Conferences, vol. 146 (2017), art. no. 04039.
3. G. Giubega, I. Visan, A. Tudora, "Even-odd effects in prompt emission in fission induced by the charge polarization", Rom. Rep. Phys. 68(3) 1024-1034 (2016).
4. A. Tudora, F.-J. Hambsch, G. Giubega, "Particular aspects related to the even-odd effects in prompt emission", Eur. Phys. J. A52, 182-193 (2016).
5. A. Tudora, F.-J. Hambsch, G.Giubega, I. Visan, "Even-odd effects in prompt emission in fission", Nucl. Phys. A 929, 260-292 (2014).

ResearcherID: E-7061-2017

Full CV

CURRENT RESEARCH FIELD: PW laser nanostructured targets

EXPERTISE AND COMPETENCES:

-  Laser-assisted VLS growth of ZnO nanowires

- Catalytic Chemistry

LIST OF 5 SELECTED ARTICLES:

1. Marcu, A.; Vizireanu, S.; Mihalcea, R.; Satulu, V.; Balan, M.;

Dumitru, M.; Craciun, V.; Constantin, C.; Viespe, C. Carbon and Nitrogen Surface Contamination Contributions in ZnO Nanowire Based Hydrogen Sensing. Chemosensors 2025, 13, 197. https://doi.org/10.3390/chemosensors13060197

ResearcherID: I-6329-20
ORCID: 0009-0000-7559-59

Full CV

CURRENT RESEARCH FIELD: Interferometry applications and Coherent Beam Combination in high-power laser systems

EXPERTISE AND COMPETENCES:

Design and implementation of various interferometric systems

Execution of experiments focused on Coherent Beam Combination (CBC)

Optical system design for high-power laser experimental setups

Acquisition and representation of experimental data

Polarimetric analysis and calculations

LIST OF 5 SELECTED ARTICLES:

Full CV

CURRENT RESEARCH FIELD: Configuration and programming of magnetic field generation systems.

EXPERTISE AND COMPETENCES:

 -Development of measurement control software

 -Data acquisition and processing

LIST OF 5 SELECTED ARTICLES:

ResearcherID: N-7348-20
ORCID: 0009-0002-1443-9885

Full CV

CURRENT RESEARCH FIELD: Electronics and Software Developments

EXPERTISE AND COMPETENCES:

• -Programming in Python, C++, and Verilog

  -mySQL Database management

  -Nanotechnologies and Unconventional Systems used in -Industrial Engineering

  -Additive and Subtractive Manufacturing Processes

  -3D Printing and Rapid Prototyping Technologies

  -Advanced 3D CAD Design and Modeling (Inventor)

  -Medical Informatics and Electronics

LIST OF 5 SELECTED ARTICLES:

S. Orobeti, L. E. Sima, I. Porosnicu, C. Diplasu, G. Giubega, G. Cojocaru, R. Ungureanu, C. Dobrea, M. Serbanescu, A. Mihalcea, E. Stancu, C.E. Staicu, F. Jipa, A. Bran, E. Axente, S. Sandel, M. Zamfirescu, I. Tiseanu, F. Sima, ”First in vitro cell co-culture experiments using laser-induced high energy electron FLASH irradiation – potential for anti-cancer therapeutic strategies”, preprint Research Square DOI: 10.21203/rs.3.rs-3893842/v1 (2024)

ResearcherID: K-0027-20

Full CV

CURRENT RESEARCH FIELD: Applied Electronics

EXPERTISE AND COMPETENCES:

• CAD design tools

• printed circuit board (PCB)

• development and testing of HDL modules

LIST OF 5 SELECTED ARTICLES:

Full CV