Photonics and Ultrafast Laser Spectrocopy

Logo Thématique PULS




Notre groupe s’appuie très largement sur les techniques de la spectroscopie résolue en temps, l’optique linéaires et non linéaires pour étudier et caractériser les systèmes moléculaires dans l’UV, le visible, l’IR et le domaine spectral THz. Nous avons a disposition une large gamme de lasers et d’outils de spectroscopie. L’ensemble de ces outils et compétences, nous permettent d’adapter et de développer des techniques expérimentales originales.

Les systèmes étudiés sont généralement des complexes moléculaires sous des formes solides (polymères, poudres, cristaux) ou dissous dans une solution.

Notre groupe développe également des sources lasers femtosecondes, picosecondes et nanosecondes originales.

Nous avons également des compétences informatiques et nous avons développé des programmes qui nous permettent d’étudier numériquement la plupart des phénomènes explorés.

Nous avons tissé des relations étroites avec le monde académique et industriel. Nous sommes financés par de nombreuses agences et organismes (ANR, ADEME, CNES, Conseil Régional d’Aquitaine, Labex, Idex, SATT …) et nous avons établi des contrats de collaborations avec de nombreuses structures et entreprises (Alphanov, Canoe, ONERA, CEA-CESTA, CNES, Turbomeca, Arkema, EOLITE, AEC-Polymers, Europlasma, Olikrom…).


Researchers of our group  use the techniques of linear and nonlinear optics to study and characterize molecular systems in the UV, visible, IR and THz . The systems studied are molecular complexes either in solid forms (polymers, powders, crystals) or dissolved in solution. Our team has developed laser sources, adapted and developed original experimental techniques. The group has in hands a wide range of lasers and tools. It also has the skills and an access to home made software that makes it possible to numerically study most of the studied phenomena. The group has academic and industrial tight relationships. It is funded by different state and government agencies (CNRS, University of Bordeaux, ANR, ADEME, Region Aquitaine, Labex, Idex, SATT …) and have different on going collaborations with small and large companies (Alphanov, Canoe, ONERA, CEA-CESTA, CNES, Turbomeca, Arkema, EOLITE, AEC-Polymers, Europlasma, Olikrom…).

Thèmes de recherche (Research )

 1. THz spectroscopy and imaging :

  • THz sources
  • THz imaging application to art science
  • THz spectroscopy of spin state complexes and nanosystems
  • Nonlinear THz
  • Time resolved optical pump-THz probe spectroscopy.
  2. Photo-induced phase transitions :
  •  Self-organisation of particles under laser excitations
  •  Photo-induced spin state phase transition
  •  Femtosecond lasers induced gratings in glasses
   3. Lasers and applications :
  •  Picosecond lasers and amplifiers
  • Compact nanoseconds lasers
   4. Spectroscopy of diluted molecular complexes :
  •  Ionic sensors and captors
  •  Energy transfert in molecular complexes
  •  Photo-switching in molecular complexes
Membres de la thématique PULS

Membres de la thématique PULS

La thématique est composée des membres suivants (Team members):

PhD and  Post Doctorats :

Anciens membres :

  • Antonio Iazzolino (Postdoc, Photoinduced phase transition in polymers doped with nanoparticles, financing support : ADEME-Conseil Régional d’Aquitaine)
  • Minh NGUYEN (PhD, Laser machining , financing support : TurboMeca)



Vous êtes intéressé par les résultats de recherches de la thématique PULS (More about our research projects) ? Téléchargez un extrait.



Publications 2017
1. M. Brossard, H. Cahyadi, M. Perrin, J. Degert, E. Freysz, T. Yasui, E. Abraham, Direct wavefront measurement of terahertz pulses using two-dimensional electro-optic imaging,  IEEE Transactions on Terahertz Science and Technology, sous presse (2017).

2. A. Minasyan, C. Trovato, J. Degert, E. Freysz, E. Brasselet, E. Abraham, Geometric phase shaping of terahertz vortex beams, Optics Letters, 42(1), pp. 41-44. (2017)

3. H. Abramczyka , B. Brozek-Pluskaa, J. Surmackia, M. Tondusson, E. Freysz, Photostability of biological systems—Femtosecond dynamics of zinc tetrasulfonated phthalocyanine at cancerous and noncancerous human Breast tissues, Journal of Photochemistry and Photobiology A: Chemistry 332, 10-24 (2017)

4. A. Ould Hamouda, A. Iazzolino, H. Tokoro , S. I. Ohkoshi, E. Freysz, Large optical third-order nonlinearities in a switchable prussian blue analogue, Opt. Materials Express Vol. 7, Issue 2, pp. 444-453 (2017).

5. D. V. Berdnikova, T. M. Aliyeu, S. Delbaere, Y. V. Fedorov, G. Jonusauskas, V. V. Novikov, A. A. Pavlov, A. S. Peregudov, N. E. Shepel’, F. I. Zubkov, О. A. Fedorova, Regio- and stereoselective [2+2] photocycloaddition in Ba2+ templated supramolecular dimers of styryl-derivatized aza-heterocycles, Dyes and Pigments, 139, 397 (2017).

6. P. A. Panchenko, A. N. Arkhipova, O. A. Fedorova, Y. V. Fedorov, M. A. Zakharko, D. E. Arkhipov, G. Jonusauskas, Controlling Photophysics of Styrylnaphthalimides through TICT, Fluorescence and E,Z-Photoisomerization Interplay, Physical Chemistry Chemical Physics, 19, 1244 (2017

7. A. Iazzolino, A. Ould Hamouda, A. Naïm, O. Stefánczyk, P. Rosa, and E. Freysz, Nonlinear optical properties and application of a chiral photostimulable Fe(II) diimine compound, Appl. Phys. Letters 110, pp 161908 (2017).

Publications 2016
1. X. Li, N. Markandeya, G. Jonusauskas, N. D. McClenaghan, V. Maurizot, S. A. Denisov,  I. Huc, Photoinduced electron transfer and hole migration in nanosized helical aromatic oligoamide foldamers, Journal of the American Chemical Society, 138, 13568(2016).

2. A. D. Johnson, K. A. Paterson, J. C. Spiteri, S. A. Denisov, G. Jonusauskas, A. Tron, N. D. McClenaghan, D. C. Magri, Water-soluble naphthalimide-based ‘Pourbaix sensors’: pH and redox-activated fluorescent AND logic gates based on photoinduced electron transfer,  New Journal of Chemistry, 40, 9917 (2016) Cover story.

3. S. Medina-Rodriguez, S. Denisov, Y. Cudré, L. Male, M. Marín-Suárez, A. Fernández-Gutiérrez, J. F. Fernandez-Sanchez, A. Tron, G. Jonusauskas, N. D. McClenaghan, E. D. Baranoff, High performance optical oxygen sensors based on nanostructured films incorporating bichromophoric iridium complexes exhibiting interchromophore energy shuttling, Analyst, 141, 3090 (2016).

4. S. A. Denisov, S. Yu, J.-L. Pozzo, G. Jonusauskas, N. D. McClenaghan, Harnessing Reversible Electronic Energy Transfer : From Molecular Dyads to Molecular Machines, ChemPhysChem, 17, 1794 (2016).

5. S. A. Denisov, Q. Gan, X. Wang, L. Scarpantonio, Y. Ferrand, B. Kauffmann, G. Jonusauskas, I. Huc, N. D. McClenagha, Electronic Energy Transfer Modulation in a Dynamic Foldaxane: Proof-of-Principle of a Lifetime-Based Conformation Probe, Angewandte Chemie International Edition (Communication), 55, 1328 (2016)

6. F. Dumur, S. Reculusa, M. Mruczkiewicz, M. Perrin, L. Vignau, S. Fasquel, Multilayer Langmuir−Blodgett films as diffractive external 3D photonic crystal in blue OLEDs, Optics Express, 24, 27184−27198 (2016).

7. M. Perrin, Eigen−energy effects and non−orthogonality in the quasi−normal mode expansion of Maxwell Equations, Optics Express, 24, 27137−27151  (2016).

8. E. Abraham, T. Ogawa, M. Brossard, T. Yasui, Interferometric Terahertz Wavefront Analysis,  IEEE J. Sel. Top. Quant. Elec., 99, (2016) DOI : 10.1109/JSTQE.2016.2638540.

9. J. Degert, M. Cornet, E. Abraham, E. Freysz, Simple and distortion-free optical sampling of terahertz pulses via heterodyne detection schemes, JOSA B, 33 (10), pp. 2045-2050 (2016) .

10. E. Abraham, H. Cahyadi, M. Brossard, J. Degert, E. Freysz, T. Yasui, Development of a wavefront sensor for terahertz pulses,  Optics Express, 24 (5), pp. 5203-5211 (2016).

11. M. Cornet, J. Degert, E. Abraham, E. Freysz,  Frequency resolved cross-correlation between optical and terahertz pulses: Application to ultrashort laser pulse characterization, Optics Express, 24 (3), pp. 3003-3010 (2016)

12. G. Amiard Hudebine, G. Tison, E. Freysz, Compact nanosecond laser system for ignition of aeronautic combustion engines, J. Appl. Phys. 120 , 233102-1 233102-11 (2016)

Publications 2015
1. M. Isaac, S. A. Denisov, A. Roux, D. Imbert, G. Jonusauskas, N. D. McClenaghan, O. Sénèqu, Lanthanide Luminescence Modulation by Cation–π Interaction in a Bioinspired Scaffold: Selective Detection of Copper(I), Angewandte Chemie International Edition (Communication), 127, 11615 (2015).
2. P. A. Panchenko, Y. V. Fedorov, O. Fedorova, G. Jonusauskas, FRET versus PET: ratiometric chemosensors assembled from naphthalimide dyes and crown ethers, Physical Chemistry Chemical Physics, 17, 22749 (2015).
3. C. Mongin, I. Pianet, G. Jonusauskas, D. M. Bassani, B. Bibal, A supramolecular photocatalyst for the reduction of Au(III) to Au(I) and high-turnover generation of gold nanocrystals, ACS Catalysis, 5, 380 (2015).
4. J. Yang, M. Perrin, P. Lalanne, Analytical formalism for the interaction of two-level   quantum systems with metal nanoresonators, Phys. Rev. X 5, 021008_1- 021008_9  (2015).

5. E. Abraham, K. Fukunaga,  Terahertz imaging applied to the examination of artistic objects, Studies in Conservation, 60 (6), pp. 343-352 (2015) (article de revue)

6. A. Iazzolino, G. Galle, J. Degert, J-F. Létard, E. Freysz, Impact of the spin state switching on the dielectric constant of iron (II) SCO nanoparticles, Chem. Phys. Letters 641, 14 (2015).

Publications 2014
1. S. Vidal, J. Degert, M. Tondusson, E. Freysz, J. Oberlé, Optimized terahertz generation via optical rectification in ZnTe crystals, J. Opt. Soc. Am. B 31, 149 (2014).
2. O. Lozan, M. Perrin, B. Ea-Kim, J.M. Rampnoux, S. Dilhaire, Ph. Lalanne, Anomalous light absorption around tiny apertures in metal film, Phys. Rev. Letters 112, 193903 (2014).
3. S. A. Denisov, Y. Cudré, P. Verwilst, G. Jonusauskas, M. Marín-Suárez, J. F. Fernández-Sánchez, E. Baranoff, N. D. McClenaghan, Direct observation of reversible electronic energy transfer involving an iridium centre, Inorganic Chemistry 53, 2677 (2014).
4. P. A. Panchenko, A. N. Sergeeva, O. A. Fedorova, Yu. V. Fedorov, R. I. Reshetnikov, A. E. Schelkunova, M. A. Grin, A. F. Mironov, G. Jonusauskas, Spectroscopical Study of Bacteriopurpurinimide–Naphthalimide Conjugates for Fluorescent Diagnostics and Photodynamic Therapy, Journal of Photochemistry and Photobiology B : Biology, 133, 140 (2014).
5. P. Batat, C. Grauby-Heywang, S. Selektor, D. Silantyeva, V. Arslanov, N. McClenaghan, G. Jonusauskas, Ion-sensitive Hemicyanine Artificial Membranes, ChemPhysChem 15, 2823 (2014).
6. F. Guillaume, Y.A. Tobon, S. Bonhommeau, J.F. Létard, L. Moulet, E. Freysz, Photoswitching of the spin crossover polymeric material [Fe(Htrz)2(trz)](BF4) under continuous laser irradiation,  Chem. Phys. Letters. 604, 105 (2014).
7. A. Ould-Hamouda, H. Tokoro, S. Ohkoshi, E. Freysz, Time resolved study of the photo-reversible phase transition induced in flakes of Ti3O5 nanoparticles at room temperature, Chem. Phys. Letters. 608, 106 (2014).
8. M. Cornet, J.Degert, E.Abraham, E. Freysz, Terahertz Kerr effect in Gallium Phosphide crystal, J. Opt. Soc. Am. B  31, 1648 (2014).
9. Y. Nicolas, F. Allama, M. Lepeltier, J. Massin, F. Castet, L. Ducasse, L. Hirsch, Z. Boubegtiten, G. Jonusauskas, C. Olivier, T. Toupance, New synthetic routes towards soluble and dissymmetric triphenodioxazine dyes designed for dye-sensitized solar cells, Chemistry – A European Journal, 20, 3678 (2014).
10. R. Beniazza, R. Lambert, L. Harmand, F. Molton, C. Duboc, S. Denisov, G. Jonusauskas, N. D. McClenaghan, D. Lastécouères, J. M. Vincent, Sunlight-Driven Copper-Catalyst Activation Applied to Photolatent Click Chemistry, Chemistry – A European Journal 20, 13181 (2014) .
11. E. Abraham, M. Bessou, A. Ziéglé, M-C. Hervé,L. Szentmiklósi, Zs. Kasztovszky, Z. Kis, M. Menu, Terahertz, X-ray and neutron computed tomography of an Eighteenth Dynasty Egyptian sealed pottery,  Appl. Physics A, DOI 10.1007/s00339-014-8779-3 (Invited paper).
12. M. Cornet, J. Degert, E. Abraham, E. Freysz, Terahertz-field-induced second harmonic generation through Pockels effect in zinc telluride crystal, Opt. Letters 39, 5921 (2014).
13. S. Kar, G. Prakash, J. Swetha, E. Freysz2, A. K. Sood, Time resolved terahertz spectroscopy of low frequency electronic resonances and optical pump-induced terahertz photoconductivity in reduced graphene oxide membrane, Carbon 80, 762 (2014).
14. S. Kar, D. R. Mohapatra, G. Prakash,, E. Freysz, A. K. Sood, Tuning the sign of photoinduced terahertz conductivity in monolayer graphene: optical pump terahertz probe spectroscopy,  Phys. Rev. B. 90, 165420 (2014).
15. O. M. Fedotova, G. Rustsky, O. K. Khasanov, J. Degert, E. Freysz, Nonlinear propagation of terahertz pulses in ammonia vapor,  Phys. Rev. A90, 053843 (2014).
Publications 2013
1. M. Jewariya, E. Abraham, T. Kitaguchi, Y. Ohgi, M. Minami, T. Araki and T. Yasui, Fast three-dimensional terahertz computed tomography using real-time line projection of intense terahertz pulse, Optics Express 21, 2423 (2013).
2. B. Viquerat, J. Degert, J.F. Létard and E. Freysz, Relaxation oscillations during the laser induced spin state transition of [Fe(PM-BiA)2(NCS)2 ] complex, Phys. Rev. B 87, 024303 (2013).
3. T. Yasui, M. Jewariya, T. Yasuda, M. Schirmer, T. Araki, and E. Abraham, Real-time two-dimensional spatio-temporal terahertz imaging and application for functional terahertz imaging of moving object, IEEE J. Selected Topics in Quantum Electron. 19(1) (2013).
4. G. Galle, G. Jonusauskas, M. Tondusson, C. Mauriac, J.F. Letard and E. Freysz, Transient absorption spectroscopy of the [Fe(2 CH3-phen)3]2+ complex : study of the high spin <—> low spin relaxation of an isolated iron(II) complex, Chem. Phys. Letters 556, 82 (2013).
5. G. Gallé, C. Etrillard, J. Degert, F. Guillaume, J.-F. Létard and E. Freysz, Study of the ultrafast photoswitching of spin crossover nanoparticles outside and inside their thermal hysteresis loop, Appl. Phys. Lett. 102, 063302 (2013).
6. H. Abramczyk, B. Brozek-Pluska, M. Tondusson and E. Freysz, Ultrafast dynamics of metal complexes of tetrasulphonated phthalocyanines at biological interfaces : comparison between photochemistry in solutions, films, noncancerous and cancerous human breast tissues, J. Phys. Chem. C 117, 4999 (2013).
7. C. Pradere, J-P. Caumes, E. Abraham, B. Chassagne and J-C. Batsale, Absolute self-calibrated room temperature terahertz powermeter, Applied Optics 52, 2320 (2013) .
8. G. Galle, M. Nicoul, Th. Woike, D. Schaniel and E. Freysz, Monitoring of the ultrafast vibrational kinetic during formation of photo-induced linkage isomers in Na2[Fe(CN)5NO]·2H2O single crystal, EPJ Web of Conferences 41, 05005 (2013).
9. Y. Leydet, P. Batat, G. Jonusauskas, S. Denisov, J. C. Lima, A. J.Parola, N. D. McClenaghan, F. Pina, Impact of Water on the Cis-Trans Photoisomerization of Hydroxychalcones, J. Phys. Chem. A, 117, 4167 (2013).
10. S. Delbaere, E. V. Tulyakova, E. Marmois, G. Jonusauskas, E. N.Gulakova, Y. V. Fedorov, O. A. Fedorova, Metal-ion induced FRET in macrocyclic dynamic tweezers, Tetrahedron, 69, 8178 (2013).
11. G. Ragazzon, P. Verwilst, S. Denisov, A. Credi, G. Jonusauskas, N. D. McClenaghan, Ruthenium(II) Complexes Based on Tridentate Polypyridine Ligands that Feature Long-lived Room-Temperature Luminescence, Chemical Communications (Communication), 49, 9110 (2013).
12. G. Galle, J. Tribollet, G. Jonusauskas, M. Tondusson, C. Mauriac, J.F. Létard and E. Freysz, High spin ↔ low spin ultrafast excitation and relaxation of an isolated iron(II) complex, EPJ Web of Conferences 41, 05010 (2013).
13. H. Abramczyk, A. Jarota, B. Brozek-Pluska, M. Tondusson, E. Freysz, J. Musial and R. Kordek, Ultrafast dynamics and Raman imaging of metal complexes of tetrasulphonated phthalocyanines in human cancerous and noncancerous breast tissues, EPJ Web of Conferences 41, 07006 (2013).
14. P. Deslandes, J. Saby, D. Sangla, F. Salin, M. Perrin and E. Freysz, Picosecond to femtosecond pulses from high power self mode–locked ytterbium rod-type fiber laser, Optics Express 21, 10731–10738 (2013).
15. P.A. Panchenko, Y.V. Fedorov, O.A. Fedorova, G. Jonusauskas, Comparative analysis of the PET and ICT sensor properties of 1,8-naphthalimides containing aza-15-crown-5 ether moieties, Dyes and Pigments 98, 347 (2013).
16. W. Hellel, A. Ould Hamouda, J. Degert, J.-F. Létard, E. Freysz, Switching of spin state complexes induced by the interaction of a laser beam with their host matrix, Appl. Phys. Lett.103, 143304 (2013).
17. Q. Bai, M. Perrin, C. Sauvan, J.-P. Hugonin, P. Lalanne, Efficient and intuitive method for the analysis of light scattering by a resonant nanostructure, Optics Express 21, 27371 (2013).
18. Th Crouzil, M. Perrin, Dynamics of a chain of optically coupled micro droplets, J. Europ. Opt. Soc. Rap. Public. 8, 1307 (2013)