Dr. Dimitris N. Papadopoulos Profile

Dr. Dimitris N. Papadopoulos

Research Engineer at ENSTA

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Author

Publications (19)

Proceedings Article | 3 December 2022 Presentation

LIDT and optical performances of large aperture optics for Apollon PW-Laser beam

Adrien Hervy, Mélanie Chabanis, Dimitris Papadopoulos, Alexandre Joerg, Abdelhamid Ghrib, Antoine Fréneaux, François Mathieu

Proceedings Volume PC12300, PC123000S (2022) https://doi.org/10.1117/12.2642512

KEYWORDS: Coating, Manufacturing, Diagnostics, Optics manufacturing, Modes of laser operation, Laser development, Laser applications, Fourier transforms, Femtosecond phenomena, Analytical research

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Proceedings Article | 11 May 2017 Presentation + Paper

Design update and recent results of the Apollon 10 PW facility

B. Le Garrec, D. Papadopoulos, C. Le Blanc, J. P. Zou, G. Chériaux, P. Georges, F. Druon, L. Martin, L. Fréneaux, A. Beluze, N. Lebas, F. Mathieu, P. Audebert

Proceedings Volume 10238, 102380Q (2017) https://doi.org/10.1117/12.2265182

KEYWORDS: Beam splitters, Optical amplifiers, Crystals, Laser development, Laser crystals, Amplifiers, High power lasers, Solid state lasers, Pulsed laser operation, Sapphire lasers, Laser systems engineering, Laser beam diagnostics, Laser energy

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Proceedings Article | 7 May 2013 Paper

Preliminary experimental and simulation results of the ESA QOMA project: a new DPSS laser source suitable for space applications

George Tsaknakis, Christos Evangelatos, Paraskevas Bakopoulos, Dimitrios Papadopoulos, Georgios Avdikos, Loïc Deyra, François Balembois, Patrick Georges, Alexandros Papayannis, Stavros Boukios, Georgios Tzeremes

Proceedings Volume 8780, 87800R (2013) https://doi.org/10.1117/12.2020816

KEYWORDS: Optical simulations, Laser resonators, Semiconductor lasers, Crystals, Output couplers, Laser crystals, Nd:YAG lasers, Mirrors, Neodymium, Laser development

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Proceedings Article | 16 February 2012 Paper

Passive coherent beam combining of two femtosecond fiber chirped-pulse amplifiers

Louis Daniault, Marc Hanna, Dimitris Papadopoulos, Yoann Zaouter, Eric Mottay, Frédéric Druon, Patrick Georges

Proceedings Volume 8237, 823709 (2012) https://doi.org/10.1117/12.908417

KEYWORDS: Fiber amplifiers, Optical amplifiers, Femtosecond phenomena, Interferometers, Scanning probe microscopy, Sagnac interferometers, Beam splitters, Amplifiers, Oscillators, Optical isolators

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Proceedings Article | 16 February 2011 Paper

Diode-pumped, cryogenically cooled Yb:CaF2 for high efficient and high power laser

S. Ricaud, D. Papadopoulos, A. Pellegrina, P. Camy, J.L. Doualan, R. Moncorgé, A. Courjaud, E. Mottay, P. Georges, F. Druon

Proceedings Volume 7912, 79121O (2011) https://doi.org/10.1117/12.873733

KEYWORDS: Crystals, High power lasers, Absorption, Cryogenics, Laser crystals, Output couplers, Semiconductor lasers, Laser applications, Mirrors, Pulsed laser operation

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Proceedings Article | 16 February 2011 Paper

Yb-doped ultrafast solid state lasers

D. Papadopoulos, P. Georges, P. Camy, J.-L. Doualan, R. Moncorgé, B. Viana, Ph. Goldner, F. Druon

Proceedings Volume 7912, 79120Q (2011) https://doi.org/10.1117/12.879458

KEYWORDS: Crystals, Laser crystals, Femtosecond phenomena, Ultrafast phenomena, Oscillators, Ions, Prisms, Q switching, Solitons, Solid state lasers

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Proceedings Article | 16 February 2011 Paper

Diode-pumped Yb:CaF2 regenerative amplifier

S. Ricaud, F. Druon, D. Papadopoulos, P. Camy, J.L. Doualan, R. Moncorgé, M. Delaigue, Y. Zaouter, A. Courjaud, P. Georges, E. Mottay

Proceedings Volume 7912, 79120S (2011) https://doi.org/10.1117/12.873725

KEYWORDS: Optical amplifiers, Crystals, Oscillators, Ytterbium, Semiconductor lasers, Absorption, Wave plates, Spectroscopy, Luminescence, Picosecond phenomena

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Proceedings Article | 14 May 2010 Paper

Amplification of femtosecond pulses in large mode area Bragg fibers

Dmitry Gaponov, Sébastien Février, Philippe Roy, Marc Hanna, Dimitris Papadopoulos, Frédéric Druon, Louis Daniault, Patrick Georges, Mikhail Likhachev, Mikhail Salganskii, Mikhail Yashkov

Proceedings Volume 7714, 771405 (2010) https://doi.org/10.1117/12.854581

KEYWORDS: Amplifiers, Femtosecond phenomena, Optical fibers, Fiber amplifiers, Picosecond phenomena, Waveguides, Polarization, Cladding, Refractive index, Photonic crystal fibers

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Proceedings Article | 13 March 2008 Paper

Parabolic fiber amplifier beyond the gain bandwidth limits

Y. Zaouter, D. Papadopoulos, M. Hanna, F. Druon, E. Mottay, E. Cormier, P. Georges

Proceedings Volume 6881, 68810G (2008) https://doi.org/10.1117/12.761175

KEYWORDS: Fiber amplifiers, Dispersion, Optical amplifiers, Scanning probe microscopy, Phase modulation, Oscillators, Medium wave, Polarization, Ultrafast phenomena, Femtosecond phenomena

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Proceedings Article | 13 July 2007 Paper

Development and performance characteristics of flash lamp pumped Yb:YAG, Cr:Tm:Ho:YAG, Er:Tm:Ho:YLF laser sources and investigation of their potential biological applications

N. Karadimitriou, B. Klinkenberg, D. Papadopoulos, A. Serafetinides

Proceedings Volume 6633, 66331H (2007) https://doi.org/10.1117/12.726870

KEYWORDS: Lamps, Laser sources, Laser crystals, Output couplers, Laser ablation, Crystals, Mid-IR, Absorption, Laser tissue interaction, Xenon

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Proceedings Article | 22 April 2005 Paper

Advances in laser and tissue interactions: laser microbeams and optical trapping

Alexander Serafetinides, Mersini Makropoulou, Dimitris Papadopoulos, Eirini Papagiakoumou, D. Pietreanu

Proceedings Volume 5830, (2005) https://doi.org/10.1117/12.618427

KEYWORDS: Optical tweezers, Optical amplifiers, Particles, Oscillators, Laser systems engineering, Laser tissue interaction, Laser ablation, Dielectrophoresis, Electrodes, Objectives

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The increasing use of lasers in biomedical research and clinical praxis leads to the development and application of new, non-invasive, therapeutic, surgical and diagnostic techniques. In laser surgery, the theory of ablation dictates that pulsed mid-infrared laser beams exhibit strong absorption by soft and hard tissues, restricting residual thermal damage to a minimum zone. Therefore, the development of high quality 3 μm lasers is considered to be an alternative for precise laser ablation of tissue. Among them are the high quality oscillator-two stages amplifier lasers developed, which will be described in this article. The beam quality delivered by these lasers to the biological tissue is of great importance in cutting and ablating operations. As the precision of the ablation is increased, the cutting laser interventions could well move to the microsurgery field. Recently, the combination of a laser scalpel with an optical trapping device, under microscopy control, is becoming increasingly important. Optical manipulation of microscopic particles by focused laser beams, is now widely used as a powerful tool for 'non-contact' micromanipulation of cells and organelles. Several laser sources are employed for trapping and varying laser powers are used in a broad range of applications of optical tweezers. For most of the lasers used, the focal spot of the trapping beam is of the order of a micron. As the trapped objects can vary in size from hundreds of nanometres to hundreds of microns, the technique has recently invaded in to the nanocosomos of genes and molecules. However, the use of optical trapping for quantitative research into biophysical processes requires accurate calculation of the optical forces and torques acting within the trap. The research and development efforts towards a mid-IR microbeam laser system, the design and realization efforts towards a visible laser trapping system and the first results obtained using a relatively new calibration method to calculate the forces experienced in the optical trap are discussed in detail in the following.

Proceedings Article | 23 March 2005 Paper

Development of a compact TEA HF oscillator-double-amplifier laser system with corona preionization suitable for medical applications

Dimitris Papadopoulos, D. Mandridis, A. Orfanoudakis, Alexander Serafetinides

Proceedings Volume 5777, (2005) https://doi.org/10.1117/12.611019

KEYWORDS: Amplifiers, Hydrogen fluoride lasers, Laser systems engineering, Oscillators, Optical amplifiers, Glasses, Laser applications, Pulsed laser operation, Signal attenuation, Electrodes

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Proceedings Article | 23 March 2005 Paper

Pulsed HF laser ablation of dentin

Eirini Papagiakoumou, Dimitris Papadopoulos, Mersini Makropoulou, Maruan Khabbaz, Alexander Serafetinides

Proceedings Volume 5777, (2005) https://doi.org/10.1117/12.611336

KEYWORDS: Laser ablation, Hydrogen fluoride lasers, Laser tissue interaction, Tissues, Scanning electron microscopy, Natural surfaces, Laser energy, Laser systems engineering, Plasma, Absorption

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Proceedings Article | 18 January 2005 Paper

Dentin mid-infrared laser ablation at various lasing parameters

Dimitris Papadopoulos, Eirini Papagiakoumou, Mersini Makropoulou, Marouan Khabbaz, Alexander Serafetinides

Proceedings Volume 5630, (2005) https://doi.org/10.1117/12.573835

KEYWORDS: Laser ablation, Waveguides, Laser tissue interaction, Er:YAG lasers, Q switched lasers, Hydrogen fluoride lasers, Pulsed laser operation, Optical amplifiers, Laser systems engineering, Mid-IR

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Proceedings Article | 21 June 2004 Paper

Lasers and new trends in laser-tissue interaction

Alexandros Serafetinides, Dimitris Papadopoulos

Proceedings Volume 5449, (2004) https://doi.org/10.1117/12.563115

KEYWORDS: Er:YAG lasers, Laser tissue interaction, Optical fibers, Laser induced fluorescence, Laser therapeutics, Laser dentistry, Glasses, Hydrogen fluoride lasers, Oxides, Tissues

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Proceedings Article | 6 October 2003 Paper

Q-switched Er:YAG radiation transmission through medical COP-coated silver hollow glass waveguide

Nikoletta Anastasopoulou, B. Klinkenberg, Dimitris Papadopoulos, Eirini Papagiakoumou, Alexandros Serafetinides, Yi-Wei Shi, Yuji Matsuura, Mitsunobu Miyagi

Proceedings Volume 5137, (2003) https://doi.org/10.1117/12.517864

KEYWORDS: Waveguides, Er:YAG lasers, Signal attenuation, Hydrogen fluoride lasers, Q switched lasers, Hollow waveguides, Tissues, Carbon dioxide lasers, Glasses, Q switching

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Proceedings Article | 9 April 2003 Paper

Q-switched Er:YAG radiation transmission through medical sapphire fibers

Eirini Papagiakoumou, Dimitris Papadopoulos, Alexandros Serafetinides

Proceedings Volume 5131, (2003) https://doi.org/10.1117/12.513683

KEYWORDS: Er:YAG lasers, Q switched lasers, Sapphire, Signal attenuation, Q switching, Laser beam propagation, Q switches, Laser energy, Beam analyzers, Fiber lasers

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Proceedings Article | 12 September 2002 Paper

Q-switched Er:YAG radiation transmission through an oxide glass fiber for medical applications

Dimitris Papadopoulos, Eirini Papagiakoumou, Alexander Serafetinides

Proceedings Volume 4916, (2002) https://doi.org/10.1117/12.482999

KEYWORDS: Er:YAG lasers, Q switched lasers, Signal attenuation, Glasses, Oxides, Laser energy, Fiber lasers, Laser tissue interaction, Laser development, Laser dentistry

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Proceedings Article | 9 April 2001 Paper

Gain and beam profile characteristics of a TEA-TEA HF oscillator-amplifier laser system

Alexander Serafetinides, Giorgos Chourdakis, Dimitris Papadopoulos, Kenneth Rickwood

Proceedings Volume 4397, (2001) https://doi.org/10.1117/12.425147

KEYWORDS: Hydrogen fluoride lasers, Laser systems engineering, Amplifiers, Oscillators, Semiconductors, Electrodes, Optical amplifiers, Glasses, Capacitors, Lasers

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Showing 5 of 19 publications

Conference Committee Involvement (1)

Ultrafast Optics 2017

8 October 2017 | Jackson Hole, Wyoming, United States

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