Office Phone: (+30) 2810 391467
Lab Phone: (+30) 2810 391333
Dr. Samartzis Petros
Principal Researcher

Petros Samartzis is currently a Principal Researcher at IESL-FORTH. He graduated from the Chemistry Department of the University of Crete in 1996 and received his Ph.D. in Physical Chemistry  from the same Department in 2003, under the supervision of Theo Kitsopoulos . He carried out post-doctoral research in the USA, initially at the University of California Santa Barbara (2003-2007) under the supervision of Alec Wodtke and then at the California Institute of Technology-Caltech (2007-2009) under the supervision of A. Zewail (Nobel in Chemistry 1999). He returned to Greece and has been working at IESL-FORTH since 2010.

PS studies Chemistry using photons, preferably laser photons. His research interests range from the dynamics of excited molecular states and the structural and energetic monitoring of chemical reactivity to the spectroscopic detection of target molecules in complex chemical mixtures. Among other things, he has studied small molecule photolysis mechanisms, photolytic production of spin-polarized atomic hydrogen, spectroscopic detection and characterization of high energy density molecules, cluster photolysis mechanisms, excitation/relaxation processes in organic crystals and carbon nanotubes, interactions at high-energy molecular excited states and spectroscopic fossil fuel adulteration detection. Over the years he has used a variety of techniques (optical & laser spectroscopy, mass spectrometry, Velocity Mapping/Slice Imaging, Ultrafast Electron Diffraction), mass spectrometry) and tools (lasers, high vacuum, custom TOF mass spectrometers, position-sensitive detectors, custom-built electron diffractometers, optical spectrometers) which he aims to further develop and expand.


  • 2003, PhD., Chemistry Department, University of Crete, Greece
  • 1996, BSc., Chemistry Department, University of Crete, Greece


  • 2019-today, Principal Researcher, IESL-FORTH, Greece
  • 2015-2019, Assistant Researcher, IESL-FORTH, Greece
  • 2010-2015, Contracted Researcher, IESL-FORTH, Greece
  • 2007-2009, Postdoctoral Scholar, Chemistry & Chem. Engineering, California Institute of Technology (Caltech), USA
  • 2003-2007, Postdoc, Chemistry Dpt., University of California, Santa Barbara (UCSB), USA


  • Laser Chemistry
  • Dynamics of excited molecules and reaction intermediates
  • Structural Dynamics in chemical reactions
  • Detection of target molecules in chemical mixtures
  • Development of new techniques and instruments
Autonomous Differential Absorption Laser Device for Remote Sensing of Atmospheric Greenhouse Gases
P. Siozos, G. Psyllakis, P. C. Samartzis, M. Velegrakis
Remote Sens., Volume:14, Page:460, Year:2022,
Detecting chirality in mixtures using nanosecond photoelectron circular dichroism
S. T. Ranecky, G. B. Park, P. C. Samartzis, I. C. Giannakidis, D. Schwarzer, A. Senftleben, T. Baumert, T. Schäfer
Phys. Chem. Chem. Phys., Volume:24, Page:2758, Year:2022,
Commercial milk discrimination by fat content and animal origin using optical absorption and fluorescence spectroscopy
N. Fragkoulis, P.C. Samartzis, M. Velegrakis
Int. Dairy Journal, Volume:123, Page:105181, Year:2021,
Formation of highly excited iodine atoms from multiphoton excitation of CH3I
K. Matthıasson, G. Koumarianou, M. X. Jiang, P. Glodic, P. C. Samartzis, A. Kvaran
Phys. Chem. Chem. Phys. , Volume:22, Page:4984, Year:2020,
High-resolution resonance-enhanced multiphoton photoelectron circular dichroism
A. Kastner, G. Koumarianou, P. Glodic, P. C. Samartzis, N. Ladda, S. T. Ranecky, T. Ring, S. Vasudevan, C. Witte, H. Braun, H. G. Lee, A. Senftleben, R. Berger, G. B. Park, T. Schäfer, T. Baumert
Phys. Chem. Chem. Phys., Volume:22, Page:7404, Year:2020,
Two-color studies of CH3Br excitation dynamics with MPI and slice imaging
A. Haflidason, P. Glodic, G. Koumarianou, P. C. Samartzis and A. Kvaran
Phys. Chem. Chem. Phys. , Volume:21, Page:10391, Year:2019,
Multiphoton Rydberg and valence dynamics of CH3Br probed by mass spectrometry and slice imaging
A. Haflidason, P. Glodic, G. Koumarianou, P. C. Samartzis and A. Kvaran
Phys. Chem. Chem. Phys. , Volume:20, Page:17423, Year:2018,
Highly Nuclear-Spin-Polarized Deuterium Atoms from the UV Photodissociation of Deuterium Iodide
22. D. Sofikitis, P. Glodic, G. Koumarianou, H.Y. Jiang, L. Bougas, P. C. Samartzis, A. Andreev, T. P. Rakitzis
Phys. Rev. Lett. , Volume:118, Page:233401, Year:2017,
Excitation dynamics involving homogeneous multistate interactions: one and two color VMI and REMPI of HBr
H. R. Hrodmarsson, A. K. Kartakoullis, D. Zaouris, P. Glodic, H. Wang, P. C. Samartzis, A. Kvaran
Phys. Chem. Chem. Phys., Volume:19, Page:11354, Year:2017,
Effect of a triplet to singlet state interaction on photofragmentation dynamics: highly excited states of HBr probed by VMI and REMPI as a case study
P. Glodic, D. Zaouris, P.C. Samartzis, A. Haflidason, A. Kvaran
Phys. Chem. Chem. Phys., Volume:18, Page:26291, Year:2016,
Rydberg and valence state excitation dynamics: a velocity map imaging study involving the E-V state interaction in HBr
D. Zaouris, A. Kartakoullis, P. Glodic, P. C. Samartzis, H.R. Hrodmarsson, A. Kvaran
Phys. Chem. Chem. Phys., Volume:17, Page:10468 , Year:2015,
Multi-pass Spectroscopic Ellipsometry
Jean-Louis Stehle, P.C. Samartzis, Katerina Stamataki, Jean-Philippe Piel, George E. Katsoprinakis, Vassilis Papadakis, Xavier Schimowski, T. Peter Rakitzis and Benoit Loppinet
Thin Solid Films , Volume:555, Page:143, Year:2014,
268 nm photodissociation of ClN3: a femtosecond velocity-map imaging study
D. Staedter, N. Thiré, E. Baynard, P. C. Samartzis, V. Blanchet
Phys. Chem. Chem. Phys., Volume:16, Page:540, Year:2014,
Heating and Cooling Dynamics of Carbon Nanotubes Observed by Temperature-Jump Spectroscopy and Electron Microscopy
O.F. Mohammed, P.C. Samartzis and A.H. Zewail
J. Am. Chem. Soc., Volume:131, Issue:44, Page:16010, Year:2009,
Nanomechanical motions of cantilevers: Direct imaging in real-space and time with 4D Electron Microscopy
D.J. Flannigan, P.C. Samartzis, A. Yurtsever and A.H. Zewail
Nano Lett., Volume:9, Page:875, Year:2009,
Casting a new light in azide photochemistry: Photolytic production of cyclic N3
P.C. Samartzis and Alec M. Wodtke
Phys. Chem. Chem. Phys., Volume:9, Page:3054, Year:2007,
All-nitrogen chemistry : How far are we from N60?
P.C. Samartzis and A.M. Wodtke
Int. Rev. Phys. Chem., Volume:25, Page:527, Year:2006,
Two photoionization thresholds of N3 produced by ClN3 photodissociation at 248 nm: Further evidence for cyclic N3
12. P. C. Samartzis, J. J. M. Lin, T. T. Ching, C. Chaudhuri, Y. T. Lee, S. H. Lee, A. M. Wodtke
J. Chem. Phys. , Volume:123, Page:051101 , Year:2005,
Spin-Polarized Hydrogen Atoms from Molecular Photodissociation
11. T.P. Rakitzis, P.C. Samartzis, R.L. Toomes, T.N. Kitsopoulos, Alex Brown, G.G. Balint-Kurti, O.S. Vasyutinskii, J.A. Beswick
Science, Volume:300, Page:1936, Year:2003,
Photodissociation study of CH3Br in the first continuum
P.C. Samartzis, T. Gougousi and T.N. Kitsopoulos
J. Chem. Phys., Volume:108, Page:5742, Year:1998,
Spin-orbit branching ratios for the Cl-atom photofragments following the excitation of Cl2 from 310 to 470 nm
P.C. Samartzis, B.L.G. Bakker, T.P. Rakitzis, D.H. Parker and T.N. Kitsopoulos
J. Chem. Phys. , Volume:110, Page:5201, Year:1999,
Slice imaging: A new approach to ion imaging and velocity mapping
C.R. Gebhardt, T.P. Rakitzis, P.C. Samartzis, V. Ladopoulos, T.N. Kitsopoulos
Rev. Sci. Instrum. , Volume:72, Issue:10, Page:3848, Year:2001,