(Talk, presenter) "Tm3+ ions doped mixed sesquioxides laser ceramics: an in-depth characterization of spectroscopic, structural and laser behavior", A. Pirri, E. Cavalli, J. Li, E. Sani, Longfei Wu, Yanqiu Jing, G. Toci, Advanced Solid-State Lasers Conference (ASSL2024), Osaka, Japan, 2024.

(poster, presenter) "Tm3+ ions doped mixed sesquioxides laser ceramics: an in-depth characterization of spectroscopic, structural and laser behavior", A. Pirri, R. Maximov, A. Santonocito, V. A. Shitov, E. V. Tikhonov, M. Vannini, B. Patrizi, V. V. Osipov, G. Toci, Advanced Solid-State Lasers Conference (ASSL2023), Tacoma (Greater Seattle Area), Washington USA, 2023.

 (Invited talk) "2D-structured ceramic lser gain media, laser waveguides", J. Hostasa, G. Toci, L. Esposito, B. Patrizi, M. Vannini, A. Pirri, F. Picelli, A. Piancastelli, V. Biasini, 9th Tiny Integrated Laser and Laser Ignition Conference 2023 (TILA-LIC2023), OPIC OPTICS & PHOTONICS International Congress 2023, Yokohama, Japan, 19-21 April 2023.  

(Invited talk, presenter) "Achievements and Prospectives in Laser Ceramic Materials: from Pure to Mixed Oxides", A. Pirri, M. Vannini, B. Patrizi, G. Toci,  Advanced Solid-State Lasers Conference (ASSL2022), Barcelona, Spain, 11-15 Dicember 2022. 

(talk) “Transparent Yb:Sc2O3 ceramics, preparation and laser performance”, J. Hostasa, V. Biasini, A. Piancastelli, G. Toci, B. Patrizi, M.  Vannini, A. Pirri, 14th Laser Ceramics Symposium (LCS2018), Okazaki, Giappone, Okazaki, Japan, 26-30 November 2018. 

(talk) “Fabrication, spectroscopic characterization and laser test Yb:Sc2O3 transparent ceramics”, G. Toci, A. Pirri, Z. Dai, Q. Liu, V. Babin, M. Nikl, W. Wang, H. Chen, J. Li, M. Vannini, 20° Convegno Nazionale delle Tecnologie Fotoniche, Lecce, Italia, 23-25 May 2018.

(poster) “Spectroscopic and laser emission characterization of a planar YAG/Yb:YAG/YAG waveguides fabricated via tape casting”, A. Pirri, G. Toci, J. Hostaša, V. Biasini, L. Esposito, A. Piancastelli, B. Patrizi, M. Vannini, 20° Convegno Nazionale delle Tecnologie Fotoniche, Lecce, Italia, 23-25 May 2018.

(talk)“Fabrication, spectrosocpy and laser emission of Yb:Sc2O3 trasparent ceramics from co-precipitated nano-powders”, G. Toci, A. Pirri, Z. Dai, Q. Liu, V. Babin, M. Nikl, W. Wang, H. Chen, J. Li, M. Vannini, 13th Laser Ceramic Symposium: International Symposium on Transparent Ceramics for Photonic Applications, Fryazino, Russia, 4-8 Dicember 2017.

(talk), “Planar YAG/Yb:YAG/YAG waveguides fabricated via tape casting: preparation microstructure and laser emission characterization”, G. Toci, J. Hosta , A. Pirri, V. Biasini, B. Patrizi, L. Esposito, A. Piancastelli, M. Vannini, 13th Laser Ceramic Symposium: International Symposium on Transparent Ceramics for Photonic Applications, Fryazino, Russia, 4-8 Dicember 2017.

(talk)“Yb doped (LuxY(1-x))2O3 mixed sequioxides ceramics: fabrication, spectroscopy and laser emission”, G. Toci, A. Pirri, B. Patrizi, M. Vannini, V.V. Osipov, R.N. Maksimov, V.A. Shitov, A.S. Yurovskikh, 13th Laser Ceramic Symposium: International Symposium on Transparent Ceramics for Photonic Applications, Fryazino, Russia, 4-8 Dicember 2017.

(talk, presenter) “An overview on Yb-doped ceramic laser materials”, A. Pirri, G. Toci, J. Li, M. Vannini, Collaborative Conference on Crystal Growth (3CG 2017), Berlino, Germany, 7-11 August, 2017.

(talk, presenter) “Yb0.15:(LuxY1-x)3Al5O12 ceramic laser”, A. Pirri, G. Toci, J. Li, T. Xie, Y. Pan, V. Babin, A. Beitlerova, M. Nikl, M. Vannini, Fotonica2016, Roma, Italy, 6-8 June, 2016.

(talk) “Spectroscopic and Laser Emission Characterization of Yb Doped Lutetium Orthosilicate (LSO)”, G. Toci, A. Pirri, Y. Shoji, A. Yoshikawa, V. Babin, J. Hybler, M. Nikl, M. Vannini, Fotonica2016, Roma, Italia, 6-8 Giugno, 2016.

(talk, presenter) “The role played on the Yb:LuAG laser performance by high doping levels and high ion excitation density”, A. Pirri, G. Toci, M. Nikl, V. Babin, M. Vannini, CLEO IQEC, San Jose, California, USA, 08-13 June, 2014.

(talk) “Nd3+-doped Lu2O3 sesquioxide ceramic: fabrication by the unconventional SPS technique, spectroscopic characterizations and first laser output”, G. Boulon, G. Alombert-Goget, Y. Guyot, M. Guzik, G. Toci, M. Vannini, M. Ciofini, A. Lapucci, A. Pirri, A. Ito, T. Goto, J. Pejchal, A. Yoshikawa, PRE ‘14, Photoluminescence in rare earths: Photonic Material and devices, San Sebastian, Spagna, 13-16 Maggio, 2014.

(poster) “Thermal lens measurements in Yb-doped YAG, LuAG, Lu2O3, Sc2O3 ceramic lasers”, A. Pirri, G. Toci, M. Ciofini, L. Esposito, L. A. Gizzi, J. Hostaša, L. Labate, A. Lapucci, M. Vannini, 22th International LPHYS’13 workshops, Praga, Repubblica Ceca, 2013, 15-19 Luglio. 

(talk) “Modelling Yb:YAG structured ceramic slabs based on differently doped layers for high energy laser applications”, “P. Ferrara, M. Ciofini, L. Esposito, L. A. Gizzi, J. Hostaša, L. Labate, A. Lapucci, A. Pirri, G.Toci, M.Vannini, CERMODEL 2013, Trento, Italia, 10-12 Luglio, 2013.

(talk) “Characterization of Yb:YAG active slab media based on a layered structure with different doping”, A. Lapucci, M. Ciofini, L. Esposito, P. Ferrara, L. A. Gizzi, J. Hostaša, L. Labate, A. Pirri, G. Toci, M. Vannini, SPIE Optics and Optoelectronics, Praga, Repubblica Ceca, 15-18 Aprile, 2013. 

(talk) “Laser performance and spectroscopic properties of Yb-doped Lu2O3 and YAg ceramics”, A. Pirri, G. Toci, M. Nikl, C. Ivascu, M. Vannini, 31st European Congress on Molecular Spectroscopy, Cluj-Napoca, Romania, 26-31 Agosto, 2012.

(poster) ”Fluorescence Lidar from satellite: concept and applications”, G. Cecchi et al., 12th International Conference on Space Operations, Stoccolma, Svezia, 11-15 Giungo, 2012.

(talk, presenter) “1% at Yb:Lu2O3 ceramic laser”, A. Pirri, G. Toci, M. Vannini, 14° Convegno Nazionale delle Tecnologie Fotoniche, Firenze, Italia, 15-17 Maggio, 2012.

(talk) “Concept per Lidar a Fluorescenza da satellite”, G. Cecchi, D. Lognoli, L. Palombi, A. Pirri, V. Raimondi, et al., 14° Convegno Nazionale delle Tecnologie Fotoniche, Firenze, Italia, 15-17 Maggio, 2012.

(talk, presenter) “First laser oscillation of 1% at Yb:Sc2O3 and Yb:Lu3O3 ceramics”, A. Pirri, G. Toci, M. Vannini, CLEO IQEC, San Jose, California, USA, 06-11 Maggio, 2012.

(talk) “Preparation and Characterization of Yb-doped YAG Ceramics“, J. Hostasa, L. Esposito, D. Alderighi, and A. Pirri, 7th Laser Ceramics Symposium: International Symposium on Transparent Ceramics for Photonic Applications, Singapore, Cina, 14-17 Novembre, 2011.

(talk) “Measurement of the upper level lifetime in presence of radiation trapping: a revisitation of the pinhole method”, G. Toci, A. Pirri, D. Alderighi, M. Vannini, 20th International LPHYS’11 workshops, Sarajevo, Bosnia, 11-15 Luglio, 2011. 

(talk)“Improvement in the processing of Yb:YAG ceramic materials”, L. Esposito, A. L. Costa, M. Serantoni, A. Piancastelli D. Alderighi, A. Pirri, , LSC 10, Münster, Germania, 02-05 Dicembre 2010.

(talk, presenter) “Comparison of Laser Characteristics of Yb-doped Fluorinated Crystals: heavily doped Yb:YLF and CaF2”, A. Pirri, D. Alderighi, G. Toci, M. Vannini, PRE 10, Photoluminescence in rare earths: Photonic Material and devices, Firenze, Italia, 28-30 Aprile 2010.

(talk) “Characterization of Yb:YAG ceramics as laser media”, D. Alderighi, A. Pirri, G. Toci, M. Vannini, L. Esposito, A. L. Costa, M. Serantoni, A. Piancastelli, PRE 10, Photoluminescence in rare earths: Photonic Material and devices, Firenze, Italia, 28-30 Aprile 2010.

(talk) “Widely tunable solid state lasers in the UV and near infrared for aerospace applications”, G. Toci, A. Pirri, D. Aldeghi, M. Vannini, OPTRO 2010, Parigi, Francia, 03-05 Febbraio, 2010.        

(talk, presenter) “Ramsey spectroscopy with high-order harmonics in the XUV”, A. Pirri, S. Cavalieri, C. Corsi, E. Sali, M. Bellini, R. Eramo, 18th International Laser Physics Workshop, Barcellona, Spagna, 13-17 Luglio, 2009. 

(talk, presenter) “A ceramic based Yb3+:YAG laser”, A. Pirri, D. Aldeghi, G. Toci, M. Vannini, 18th International Laser Physics Workshop, Barcellona, Spagna, 13-17 Luglio, 2009. 

(talk) ”Laser performance at room-temperature of diode-pumped Yb3+:YLF and Yb3+:CaF2”, A. Pirri, D. Aldeghi, G. Toci, M. Vannini, CLEO IQEC, Baltimora, Maryland, USA, 31 Maggio–05 Giugno, 2009.

(talk, presenter) ”Diode-pumped Yb3+:YLF and Yb3+:CaF2 laser performance”, A. Pirri, D. Aldeghi, G. Toci, M. Vannini ULIS 2009, Frascati, Roma, Italia, 24-28 Maggio, 2009.

(poster, presenter) “Ramsey-Type Spectroscopy in the XUV spectral region”, A. Pirri, E. Sali, C. Corsi, M. Bellini, S. Cavalieri, R. Eramo, ULIS 2009, Frascati, Roma, Italia, 24-28 Maggio, 2009.

(talk, presenter) ”Harmonic enhancement by an array of gas jects”, A. Pirri, C. Corsi, M. Bellini, ULIS 2007, Bordeaux, Francia, 01-05 Ottobre, 2007.

(talk, presenter) “Direct interferometric measurement of the atomic dipole phase in high-order harmonic generation”, C. Corsi, A. Pirri, E. Sali, A. Tortora, M. Bellini, IAMPI 2006, Szeged, Ungheria, 01-05 Ottobre, 2006.

(talk, presenter) ”Direct interferometric measurement of the atomic dipole phase in high-order harmonic generation”, C. Corsi, A. Pirri, E. Sali, A. Tortora, M. Bellini, 15th Intern. Laser Physics Workshop, Losanna, Svizzera, 24-28 Luglio, 2006

(talk) ”Direct interferometric measurement of the atomic dipole phase in high-order harmonic generation”, C. Corsi, A. Pirri, E. Sali, A. Tortora, M. Bellini, SILAP’06, Salamanca, Spagna, 19-22 Giugno, 2006.

(talk) ”Direct interferometric measurement of the atomic dipole phase in high-order harmonic generation”, C. Corsi, A. Pirri, E. Sali, A. Tortora, M. Bellini, SILAP’06, Salamanca, Spagna, 19-22 Giugno, 2006. 

(talk) ”Direct interferometric measurement of the atomic dipole phase in high-order harmonic generation”, C. Corsi, A. Pirri, E. Sali, A. Tortora, M. Bellini, SILAP’06, Salamanca, Spagna, 19-22 Giugno, 2006.

(talk) “VUV precision metrology study for determination of frequency shift in harmonic generation”, F. Brandi, M. Barkaskas, W. Ubachs, A. Pirri, F. Giammanco, 13th Intern. Laser Physics Workshop, Trieste, Italia, 12-16 Luglio, 2004.

(poster) M. Barkaskas, F. Brandi, F. Giammanco, D. Nechev, A. Pirri, W. Ubachs,”Tunable table-top and narrowband extreme ultraviolet radiation source”, 16th International Conference on Laser Spectroscopy, Canberra, Australia, 13-18 Luglio, 2004.

(poster) “Tunable table-top narrow-band XUV laser source”, F. Brandi, M. Barkaskas, A. Pirri, W. Ubachs, 28th Fall meeting of Atomic Molecular and Optical Physics, Lunteren, Paesi Bassi, 13-14 Novembre, 2003.

(talk) “A new approach to harmonic generation in gasses and plasma with intense laser sources”, F. Giammanco, M. Carpita, S. Laza, P. Marsili, A. Pirri, A. Ruffini 5th Italian-Russian Laser Symposium, ITARUS, 29 Ottobre-02 Novembre, 2003.

(poster, presenter) ”Study of collective effects in plasma by time of flight spectroscopy”, A. Pirri, A. Ruffini, F. Giammanco, INFMeeting2002 National Conference of the Physics of Matter, Bari, Italia, 24-28 Giugno, 2002.