H. Tetzner,  I. A. Fischer,  O. Skibitzki, M. M. Mirza,  C. L. Manganelli,  G. Luongo,  D. Spirito,  D. J. Paul, M. De Seta, and  G. Capellini, "Current leakage mechanisms related to threading dislocations in Ge-rich SiGe heterostructures grown on Si(001)", Applied Physics Letters 119, 153504 (2021). Available open access at 10.5281/zenodo.5855697.

.

M. Montanari, C. Ciano, L. Persichetti, C. Cedric, L. Baldassarre, M. Ortolani, L. Di Gaspare, G. Capellini, D. Stark, G. Scalari, M. Virgilio, M. De Seta, "THz intersubband absorption in n-type Si_1−xGe_x parabolic quantum wells", Applied Physics Letters 118, 163106 (2021). Available open access at 10.5281/zenodo.4659850. Dataset available at 10.23728/b2share.7f20ddf20f8341c784b3d0c82fe0692d.

D. Stark, M. Mirza, L. Persichetti, M. Montanari, S. Markmann, M. Beck, T. Grange, S. Birner, M. Virgilio, C. Ciano, M. Ortolani, C. Corley, G.i Capellini, L. Di Gaspare, M. De Seta, D. J. Paul, J. Faist, G. Scalari, "THz intersubband electroluminescence from n-type Ge/SiGe quantum cascade structures", Applied Physics Letters 118, 101101 (2021). Available open access at arXiv:2101.05518. Dataset available at https://b2share.eudat.eu/records/3dc2a9cb228e4511aaa1df808583a44f.

B. Meng, B. Hinkov, N. M. L. Biavan, H. T. Hoang, D. Lefebvre, M. Hugues, D. Stark, M. Franckié, A. Torres-Pardo, J. Tamayo-Arriola, M. M. Bajo, A. Hierro, G. Strasser, J. Faist, and J. M. Chauveau, "Terahertz Intersubband Electroluminescence from Nonpolar m-Plane ZnO Quantum Cascade Structures", ACS Photonics 8, 343–349 (2021). Available open access at https://pubs.acs.org/doi/10.1021/acsphotonics.0c01641

S. Markmann, M. Franckié, S. Pal, D. Stark, M. Beck, M. Fiebig, G. Scalari and J. Faist, "Two-dimensional spectroscopy on a THz quantum cascade structure", Nanophotonics 10, 171 (2021). Available open access at https://doi.org/10.1515/nanoph-2020-0369.

Y. Yamamoto, O. Skibitzki, M. A. Schubert, M. Scuderi, F. Reichmann, M. H. Zöllner, M. De Seta, G. Capellini and B. Tillack, "Ge/SiGe multiple quantum well fabrication by reduced-pressure chemical vapor deposition", Japanese Journal of Applied Physics,  59 SGGK10 (2020). Available open access at 10.5281/zenodo.5336357.

C. Ciano, L. Persichetti, M. Montanari, L. Di Gaspare,G. Capellini, L. Baldassarre, M. Ortolani, A. Pashkin, M. Helm, S. Winnerl, M. Virgilio, and M. De Seta, "Electron-phonon coupling in n-type Ge two-dimensional systems", Physical Review B 102, 205302 (2020). Available open access at 10.5281/zenodo.4095550. Dataset available at http://doi.org/10.23728/b2share.0b46bc0bf08a4cf4afbcf8425c6ae33a.

O. Skibitzki, M.H. Zoellner, F. Rovaris, M.A. Schubert, Y. Yamamoto, L. Persichetti, L. Di Gaspare, M. De Seta, R. Gatti, F. Montalenti, G. Capellini, "Reduction of threading dislocation density beyond the saturation limit by optimized reverse grading", Physical Review Materials, 4, 103403 (2020). Available open access at 10.5281/zenodo.4095543. Dataset available at http://doi.org/10.23728/b2share.205147126484448fb1e2884dd5f445e8.

L. Bagolini, M. Montanari, L. Persichetti, L. Di Gaspare,  G. Capellini, M. Ortolani, M. De Seta and M. Virgilio, "Disentangling elastic and inelastic scattering pathways in the intersubband electron dynamics of n-type Ge/SiGe quantum fountains", Physical Review B 101, 245302 (2020). Available open access at 10.5281/zenodo.382476679. Dataset available at https://b2share.eudat.eu/records/a0ae81bcaec545948d4e9de263dff622.

L. Persichetti, M. Montanari, C. Ciano, L. Di Gaspare,  M. Ortolani, L. Baldassarre, M. H. Zoellner, S. Mukherjee,  O. Moutanabbir, G. Capellini, M. Virgilio and M. De Seta, "Intersubband transition engineering in the conduction band of asymmetric coupled Ge/SiGe quantum wells", Crystals 10, 179 (2020). Available open access at https://doi.org/10.3390/cryst10030179. Dataset available at http://doi.org/10.23728/b2share.205147126484448fb1e2884dd5f445e8.

C.L. Manganelli  M. Virgilio  O. Skibitzki  M. Salvalaglio  D. Spirito  P. Zaumseil  Y. Yamamoto  M. Montanari  W.M. Klesse  G. Capellini, "Temperature dependence of strain–phonon coefficient in epitaxial Ge/Si(001): A comprehensive analysis", Journal of Raman Spectroscopy 51, 989-996 (2020). Available open access at https://doi.org/10.1002/jrs.5860. 

T. Grange, S. Mukherjee, G. Capellini, M. Montanari, L. Persichetti, L. Di Gaspare, S. Birner, A. Attiaoui, O. Moutanabbir, M. Virgilio, and M. De Seta, "Atomic-scale insights into semiconductor heterostructures: from experimental three-dimensional analysis of the interface to a generalized theory of interface roughness scattering", Physical Review Applied 13, 044062 (2020). Available open access at https://arxiv.org/abs/2002.00851. Dataset available at http://doi.org/10.23728/b2share.205147126484448fb1e2884dd5f445e8.

K. Gallacher, M. Ortolani, K. Rew, C. Ciano, L. Baldassarre, M. Virgilio, G. Scalari, J. Faist, L. Di Gaspare, M. De Seta, G. Capellini, T. Grange, S. Birner, and D. J. Paul, "Design and simulation of losses in Ge/SiGe terahertz quantum cascade laser waveguides", Optics Express 28, 4786 (2020). Available open access at https://doi.org/10.1364/OE.384993. Dataset available at https://b2share.eudat.eu/records/4c1760ddc4d8400ea99c2ec60b9368ec.

C. Ciano, M. Virgilio, L. Bagolini, L. Baldassarre, A. Pashkin, M. Helm, M. Montanari, L. Persichetti, L. Di Gaspare, G. Capellini, D. J. Paul, G. Scalari, J. Faist, M. De Seta, and M. Ortolani, "Terahertz Absorption-Saturation and Emission in Electron-doped Germanium Quantum Wells", Optics Express 28, 7245-7258 (2020). Available open access at https://doi.org/10.1364/OE.381471. Dataset available at http://doi.org/10.23728/b2share.45d1ee9888734c34b97a94f5c3158d65.

A. Forrer, M. Franckié, D. Stark, T. Olariu, M. Beck, J. Faist and G. Scalari, "Photon-Driven Broadband Emission and Frequency Comb RF Injection Locking in THz Quantum Cascade Lasers", ACS Photonics 7, 784 (2020). Available open access at https://arxiv.org/abs/1912.00890.

C. Ciano, M. Virgilio, L. Bagolini, L. Baldassarre, A. Pashkin, M. Helm, M. Montanari, L. Persichetti, L. Di Gaspare, G. Capellini, D. J. Paul, G. Scalari, J. Faist, M. De Seta, and M. Ortolani, "Electron Population Dynamics in Optically Pumped Asymmetric Coupled Ge/SiGe Quantum Wells: Experiment and Models",  Photonics 7, 2 (2020). Available open access at https://www.mdpi.com/2304-6732/7/1/2. Dataset available at https://zenodo.org/record/3648126#.Xjv1GzJKiUk.

C. Ciano, L. Di Gaspare, M. Montanari, L. Persichetti, L. Baldassarre, M. Ortolani, G. Capellini, O. Skibitzki, M. Zoellner, J. Faist, G. Scalari, D. Stark, D. J. Paul, K. Rew, O. Moutanabbir, S. Mukherjee, T. Grange, S. Birner, M. Virgilio,  and M. De Seta, "n-type Ge/SiGe Multi Quantum-Wells for a THz Quantum Cascade Laser", ECS Transactions 93, 63 (2019). Pre-print available open access at http://eprints.gla.ac.uk/202769/.

M. Montanari, C. Ciano, L. Persichetti, L. Di Gaspare, M. Virgilio, G. Capellini, M. Zoellner, O. Skibitzki, D. Stark, G. Scalari, J. Faist, D.J. Paul, T. Grange, S. Birner, M. Scuderi, G. Nicotra, O. Moutanabbir, S. Mukherjee, L. Baldassarre, M. Ortolani, M. De Seta, “High-quality n-type Ge/SiGe multilayers for THz quantum cascade lasers”, IEEE 2019 44th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz) . Preprint available open access at http://eprints.gla.ac.uk/202773/1/202773.pdf.

T. Grange, D. Stark, G. Scalari, J. Faist,  L. Persichetti,  L. Di Gaspare,  M. De Seta,  M. Ortolani,  D.J. Paul,  G. Capellini, S. Birner and M. Virgilio, "Room temperature operation of n-type Ge/SiGe terahertz quantum cascade lasers predicted by non-equilibrium Green’s functions", Applied Physics Letters 114, 111102 (2019). Preprint available open access at https://arxiv.org/pdf/1811.12879.pdf.

C. Ciano, M. Virgilio, M. Montanari, L. Persichetti, L. Di Gaspare, M. Ortolani, L. Baldassarre, M. H. Zöllner, O. Skibitzki, G.Scalari, J. Faist, D. J. Paul, M. Scuderi, G. Nicotra, T. Grange, S. Birner, G. Capellini, and M. De Seta, “Controlled electron-state coupling in asymmetric Ge/GeSi multi-quantum well”, Physical Review Applied 11, 014003, (2019). Pre-print available open access at 10.5281/zenodo.2319242. Dataset available at http://doi.org/10.23728/b2share.6abd966b55a1457893070c039b3bf94d.

M. Montanari, M. Virgilio, C. L. Manganelli, P. Zaumseil, M. H. Zoellner, Y. Hou, M. A. Schubert, L. Persichetti, L. Di Gaspare, M. De Seta, E. Vitiello, E. Bonera, F. Pezzoli, and G. Capellini, “Photoluminescence study of inter-band transitions in few, pseudomorphic and strain-unbalanced Ge/GeSi multiple quantum wells”, Physical Review B 98 195310, (2018). Pre-print available open access at https://arxiv.org/abs/1811.08665. Dataset available at https://b2share.eudat.eu/records/2e7747ef5ae640d6bfd5fda34ceadf5f.

L. Persichetti, M. Fanfoni, M. De Seta, L. Di Gaspare, L. Ottaviano, C. Goletti, and A. Sgarlata, “Formation of extended thermal etch pits on annealed Ge wafers”, Applied Surface Science 462, 86 (2018). Pre-print available open access at https://arxiv.org/abs/1809.03404.

L. Persichetti, M. Montanari, D. Stark, C. Ciano, L. Di Gaspare, M. Virgilio, M. Ortolani, L. Baldassarre, C. Corley, M. Zoellner, O. Skibitzki, G. Scalari, J. Faist, M. Mirza, D. J. Paul, S. Markmann, M. Beck, T. Grange, S. Birner, G. Capellini and M. De Seta, THz emission from n-type Ge/SiGe quantum cascade structures: issues, progress and perspectives.CONMAT 2021. 18^th-20^th October 2021, Valencia (Spain), (invited).

L. Persichetti, Michele Montanari, Chiara Ciano, Cedric Corley, Leonetta Baldassarre, Michele Ortolani, Luciana Di Gaspare, Giovanni Capellini, David Stark, Giacomo Scalari, Michele Virgilio, and Monica De Seta, THz intersubband transitions in n-type Ge-rich SiGe parabolic quantum wells. EMRS 2021, 20^th-23^rd September 2021.

D. Stark, M. Mirza, L. Persichetti, M. Montanari, S. Markmann, M. Beck, T.Grange, S. Birner, M. Virgilio, C. Ciano, M. Ortolani, C. Corley, G. Capellini,L. Di Gaspare, M. De Seta D. J. Paul, J. Faist, G. Scalari, "Terahertz intersub-band electroluminescence from n-type germanium quantum wells", Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference(CLEO/Europe-EQEC 202, ONLINE, 21^st-25^th June, 2021.

M. De Seta, "SiGe heterostructures for THz QCLs: issues, progress, perspectives", International Quantum Cascade Laser school & workshop IQCLSW (held online), 7^th-10^th September 2020 (invited).

G. Capellini, "On the way towards a n-type Ge/SiGe THz Quantum Cascade Laser", IEEE Photonics Society Summer Topical Meeting Series 2020 (held online), 13^rd-15^th July 2020 (invited)

S. Markmann, "2D-THz-Spectroscopy on a Quantum Cascade Structure", SPb-POEM 2020, 27^th-30^th April 2020.

S. Markmann, "2D-THz-Spectroscopy on a Quantum Cascade Structure", IRMMW-THz 2020 (held online), 8^th-13^th November 2020.

C. Ciano, "Perspectives on electrically pumped Ge/SiGe QW emitters at THz frequencies", International Quantum Cascade Laser school & workshop IQCLSW (held online), 7^th-10^th September 2020 (poster).

C. Ciano, "Perspectives on electrically pumped Ge/SiGe QW emitters at THz frequencies", IRMMW-THz 2020 (held online), 8^th-13^th November 2020.

M. Montanari, L. Persichetti1, C. Ciano, L. Di Gaspare, M. Virgilio, G. Capellini, M. Zoellner, O. Skibitzki, G. Scalari, D. J. Paul, T. Grange, S. Birner, O. Moutanabbir, S. Mukherjee, L. Baldassarre, M. Ortolani, and M. De Seta “Growth of Ge/SiGe Quantum Cascade heterostructures” ISCSI8 November 27-30 2019 Sendai (Japan) (invited)

L. Di Gaspare, M. Montanari, C. Ciano, L. Persichetti, L. Bagolini, M. Virgilio, G. Capellini, M. Zoellner, O. Skibitzki, D. Stark, G. Scalari, J. Faist, D. J. Paul, T. Grange, S. Birner, O. Moutanabbir, S. Mukherjee, L. Baldassarre, M. Ortolani, and M. De Seta, "High-quality n-type Ge/SiGe heterostructures for room temperature THz emission", EMRS Fall meeting 2019, 16^th-19^th September 2019 Warsaw, Poland.

C. Ciano, M. Montanari, C. Ciano, L. Persichetti, L. Di Gaspare, M. Virgilio, G. Capellini, M. Zoellner, O. Skibitzki, D. Stark, G. Scalari, J. Faist, D.J. Paul, T. Grange, S. Birner, M. Scuderi, G. Nicotra, O. Moutanabbir, S. Mukherjee, L. Baldassarre, M. Ortolani and M. De Seta, “Electron-doped SiGe Quantum Well Terahertz Emitters Pumped By FEL Pulses”, IRMMTHz-2019, 1^st-6^th June, Paris France

M. De Seta, M. Montanari, C. Ciano, L. Persichetti, L. Di Gaspare, M. Virgilio, G. Capellini, M. Zoellner, O. Skibitzki, D. Stark, G. Scalari, J. Faist, D.J. Paul, T. Grange, S. Birner, M. Scuderi, G. Nicotra, O. Moutanabbir, S. Mukherjee, L. Baldassarre, M. Ortolani, “High-quality N-type Ge/SiGe Multilayers For THz Quantum Cascade Laser”, IRMMTHz-2019, 1^st-6^th June, Paris France.

D. Stark, L. Persichetti, M. Montanari, C. Ciano, L. Di Gaspare, M. De Seta, M. Zoellner, O. Skibitzki, G. Capellini, M. Ortolani, L. Baldassarre, M. Virgilio, T. Grange, S. Birner, K. Rew, D.J. Paul, J. Faist, G. Scalari, “Si-based N-type THz Quantum Cascade Emitter”, IRMMTHz-2019, 1^st-6^th June, Paris France.

Thomas Grange, David Stark, Giacomo Scalari, Jérôme Faist, Luca Persichetti, Monica De Seta, Luciana Di Gaspare, Giovanni Capellini, Douglas Paul, Michele Ortolani, Stefan Birner and Michele Virgilio, "Comparing III-V and group-IV terahertz quantum cascade lasers using non-equilibrium Green’s functions", 2019 ITQW Conference, 15^th-20^th September, Ojai, USA.

M. De Seta, M. Montanari, C. Ciano, L. Persichetti, L. Di Gaspare, M. Virgilio, G. Capellini, M. Zoellner, O. Skibitzki, D. Stark, G. Scalari, J. Faist, D. J. Paul, T. Grange, S. Birner, O. Moutanabbir, S. Mukherjee, L. Baldassarre, M. Ortolani, “High-quality n-type Ge/SiGe multilayers for room temperature THz emission” 2019 ITQW Conference, 15^th-20^th September, Ojai, USA.

D. Stark, L. Persichetti, M. Montanari, C. Ciano, L. Di Gaspare, M. De Seta, M. Zoellner, O. Skibitzki, G. Capellini, M. Ortolani, L. Baldassarre, M. Virgilio, T. Grange, S. Birner, K. Rew, D.J. Paul, J. Faist, G. Scalari, “Si-based N-type THz Quantum Cascade Emitter2019 ITQW Conference, 15^th-20^th September, Ojai, USA.

L. Persichetti, M. Montanari, C. Ciano, M. Virgilio, L. Di Gaspare, M. Ortolani, L. Baldassarre, M. Zoellner, O. Skibitzki, D. Stark, G. Scalari, J. Faist, K. Rew, D. J. Paul, M. Scuderi, G. Nicotra, S. Mukherjee, O. Moutanabbir, T. Grange, S. Birner, G. Capellini and M. De Seta, "Towards a silicon-based Qunatum Cascade Laser", SPIE Optics-Photonics. 11^th –15^th August 2019, San Diego, USA.

L. Persichetti, M. Montanari, C. Ciano, M. Virgilio, L. Di Gaspare, M. Ortolani, L. Baldassarre, M. Zoellner, O. Skibitzki, D. Stark, G. Scalari, J. Faist, K. Rew, D. J. Paul, M. Scuderi, G. Nicotra, S. Mukherjee, O. Moutanabbir, T. Grange, S. Birner, G. Capellini and M. De Seta, "Towards a silicon-based Qunatum Cascade Laser", 2019 EMN Barcelona Meeting on Semiconductor. 19^th –23^rd August 2019, Barcelona, Spain (invited).

D. Stark, L. Persichetti, M. Montanari, C. Ciano, L. Di Gaspare, M. De Seta, M. Zoellner, O. Skibitzki, G. Capellini, M. Ortolani, L. Baldassarre, M. Virgilio, T. Grange, S. Birner, K. Rew, D.J. Paul, J. Faist, G. Scalari, “n-type Ge/SiGe Quantum Cascade Devices for THz Electroluminescence”, Joint Annual Meeting of SPS and ÖPG 2019, 26^th-30^th August 2019, Zurich, Switzerland.

G. Capellini, L. Di Gaspare, M. Montanari, C. Ciano, L. Persichetti, L. Bagolini, M. Virgilio, G. Capellini, M. Zoellner, O. Skibitzki, D. Stark, G. Scalari, J. Faist, D. J. Paul, T. Grange, S. Birner, O. Moutanabbir, S. Mukherjee, L. Baldassarre, M. Ortolani, and M. De Seta, "On the way towards a n-type Ge/SiGe THz Quantum Cascade Laser", IEEE Photonics Society Summer Topical Meeting Series 2019, 7^th-10^th July 2019, Fort Lauderdele, USA (invited)

Monica De Seta, Chiara Ciano, Luciana Di Gaspare, Michele Montanari, Luca Persichetti, Michele Virgilio, Leonetta Baldassarre Michele Ortolani,, Giovanni Capellini ,Oliver Skibitzki, Marvin Zoellner,, Jerome Faist, Giacomo Scalari, David Stark, Douglas J. Paul, Kirsty Rew, Oussama Moutanabbir, Samik Mukherjee, Thomas Grange, Stefan Birner, "n-type Ge/SiGe Multi Quantum-Wells for a THz Quantum Cascade Laser", 2019 ISTDM Conference, 2^nd-6^th June 2019 Madison, USA

Thomas Grange, David Stark, Giacomo Scalari, Jérôme Faist, Luca Persichetti, Monica De Seta, Luciana Di Gaspare, Giovanni Capellini, Douglas Paul, Michele Ortolani, Stefan Birner and Michele Virgilio, "Comparing III-V and group-IV terahertz quantum cascade lasers using non-equilibrium Green’s functions", CLEO/Europe-EQEC 2019, 23^rd-27^th June 2019, Munich, Germany.

C. Ciano, M. Virgilio, M. Montanari, L. Persichetti, L. Di Gaspare, M. Ortolani, L. Baldassarre, L. Bagolini, M. H. Zoellner, O. Skibitzki, D. Stark, G. Scalari, J. Faist, D. J. Paul, K. Rew, M. Scuderi, G. Nicotra, T. Grange; S. Birner. G. Capellini, Monica De Seta, “Germanium Quantum Wells for Far-infrared Lasers Assembled Using Silicon-based Heterostructures FLASH”, PIERS Conference, 17^th-20^th June 2019, Rome Italy

M. Montanari, L. Persichetti, C. Ciano, M. Virgilio, L. Di Gaspare, M. Ortolani, L. Baldassarre, M. Zoellner, O. Skibitzki, D. Stark, G. Scalari, J. Faist, K. Rew, D. J. Paul, M. Scuderi, G. Nicotra, S. Mukherjee, O. Moutanabbir, T. Grange, S. Birner, G. Capellini and M. De Seta “n-type Ge/SiGe Multi Quantum-Wells for a THz Quantum Cascade Laser”, TERAMETANANO Conference Lecce, Italy, May 2019

C. Ciano, L. Baldassarre, M. Montanari, L. Persichetti, L. Di Gaspare, M. Virgilio, G. Capellini, M. Zoellner, O. Skibitzki, D. Stark, G. Scalari, J. Faist, D. J. Paul, T. Grange, S. Birner, O. Moutanabbir, S. Mukherjee, M. De Seta, M. Ortolani, "Electron-doped SiGe Quantum Well Terahertz Emitters pumped by FEL pulses", FELBE/TELBE User Workshop, 13^th-15^th May 2019, Dresden Germany (poster)

D. Stark, L. Persichetti, M. Montanari, C. Ciano, L. Di Gaspare, M. De Seta, M. Zoellner, O. Skibitzki, G. Capellini, M. Ortolani, L. Baldassarre, M. Virgilio, T. Grange, S. Birner, K. Rew, D.J. Paul, J. Faist, G. Scalari, “n-type Ge/SiGe Quantum Cascade Devices for THz Electroluminescence”, French-German THz Conference 2019, 2^nd-5^th April 2019, Kaiserslautern Germany.

Stefan Birner, David Stark, Giacomo Scalari, Jérôme Faist, Luca Persichetti, Monica De Seta, Luciana Di Gaspare, Giovanni Capellini, Douglas Paul, Michele Ortolani, Thomas Grange and Michele Virgilio, "Temperature-robust terahertz quantum cascade lasers using Ge/SiGe", DPG Spring Meeting 2019, 31^st March-5^th April 2019, Regensburg, Germany.

Thomas Grange, David Stark, Giacomo Scalari, Jérôme Faist, Luca Persichetti, Monica De Seta, Luciana Di Gaspare, Giovanni Capellini, Douglas Paul, Michele Ortolani, Stefan Birner and Michele Virgilio, "Prediction of novel quantum cascade devices using non-equilibrium Green’s functions", 44^th Freiburg Infrared Colloquium, 19^th-20^th March 2019, Freiburg, Germany (poster)

M. Montanari, C. Ciano, L. Di Gaspare, L. Persichetti, M. Virgilio, M. Ortolani, L. Baldassarre, G. Capellini, M. Zoellner, O. Skibitzki, M. Helm, G. Scalari, D. Stark, J. Faist,  K.Rew, D.J. Paul, T. Grange, S. Birner, and M. De Seta“Optical properties of a n-doped Ge/SiGe quantum wells in the THz range”, Joint ISTDM / ICSi 2018 Conference Potsdam, Germany, May 2018

Stefan Birner, “The nextnano Software for the Simulation of Strained SiGe Heterostructures”, Joint ISTDM / ICSI 2018 Conference, Potsdam, Germany, May 2018

Thomas Grange, Giacomo Scalari, Giovanni Capellini, Douglas Paul, Stefan Birner, Monica De Seta, Michele Virgilio, “Temperature-robust terahertz quantum cascade lasers using Ge/SiGe”, 34th International Conference on the Physics of Semiconductors, Montpellier, France, July 2018

M. De Seta, M. Montanari, C. Ciano, L. Di Gaspare, L. Persichetti, M. Virgilio, M. Ortolani, L. Baldassarre, G. Capellini, M. Zoellner, O. Skibitzki, M. Helm, G. Scalari, D. Stark, J. Faist, K.Rew, D.J. Paul, T. Grange, S. Birner, “Towards a THz quantum cascade laser based on silicon heterostructures”, E-MRS Fall Meeting Warsaw, Poland, Sept. 2018 (invited).

Thomas Grange, Giacomo Scalari, Giovanni Capellini, Douglas J. Paul, Stefan Birner, Monica De Seta, and Michele Virgilio “Modeling electron transport in quantum cascade lasers”, 8th International Quantum Cascade Laser School and Workshop IQCLSW 2018, Cassis, France, 2^nd-7^th Sept. 2018.

Thomas Grange, Giacomo Scalari, Giovanni Capellini, Douglas J. Paul, Stefan Birner, Monica De Seta, and Michele Virgilio, “Temperature-robust terahertz quantum cascade lasers using Ge/SiGe”, ICPS 2018 - 34th International conference on the physics of semiconductors, Montpellier, 29^th July - August 3^rd 2018.

Chiara Ciano, Michele Montanari, Giovanni Capellini, Luciana Di Gaspare, Michele Virgilio, Douglas J. Paul, Giacomo Scalari, Stefan Birner, Thomas Grange, Leonetta Baldassarre, Michele Ortolani, Monica De Seta, "Germanium Quantum Wells in the Conduction Band for Terahertz Emission on Silicon Substrates" 8th International Quantum Cascade Laser School and Workshop IQCLSW 2018, Cassis, France, 2nd-7th Sept. 2018

Thomas Grange “Temperature robustness of Ge/SiGe terahertz quantum cascade lasers” 8th International Quantum Cascade Laser School and Workshop IQCLSW 2018, Cassis, France, 2^nd-7^th Sept. 2018

Kirsty Rew, Giacomo Scalari, Giovanni Capellini, Luciana Di Gaspare, Monica De Seta, Stefan Birner, Michele Virgilio, Michele Ortolani, Douglas J. Paul, "Waveguide loss simulations and measurements for Ge/SiGe terahertz quantum cascade lasers" 8th International Quantum Cascade Laser School and Workshop IQCLSW 2018, Cassis, France, 2^nd-7^th Sept. 2018

Carola Burkl, Thomas Grange, Stefan Birner "Algorithm for transferring a working quantum cascade laser design to any other material system" 8th International Quantum Cascade Laser School and Workshop IQCLSW 2018, Cassis, France, 2^nd-7^th Sept. 2018

Stefan Birner “The Nonequilibrium Green’s Function Method for the simulation of Resonant Tunneling Diodes and Quantum Cascade Lasers using the nextnano software”, Fraunhofer Research Institution for Microsystems and Solid State Technologies EMFT, Munich, Germany, 6^th Nov. 2018

C. Ciano, M. Montanari, Luca Persichetti, D. Stark, G. Scalari, J. Faist, L.D. Gaspare, G. Capellini, C. Corley, T. Grange, S. Birner, M. Virgilio, L. Baldassarre, M. Ortolani, M.D. Seta, ”Perspectives on electrically pumped Ge/SiGe QW emitters at THz frequencies”, 2020 45th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz), doi: 10.1109/IRMMW-THz46771.2020.9370671. Available open access at 10.23728/b2share.5c69676db54945f78c2686b005ab483c .

C. Ciano, L. Di Gaspare, M. Montanari, L. Persichetti, L. Baldassarre, M. Ortolani, G. Capellini, O. Skibitzki, M. Zoellner, J. Faist, G. Scalari, D. Stark, D. J. Paul, K. Rew, O. Moutanabbir, S. Mukherjee, T. Grange, S. Birner, M. Virgilio,  and M. De Seta, "n-type Ge/SiGe Multi Quantum-Wells for a THz Quantum Cascade Laser", ECS Transactions 93, 63 (2019). Available open access at https://b2share.eudat.eu/records/69841292c6fe4fcba39807bcc619230d.

M. Montanari, C. Ciano, L. Persichetti, L. Di Gaspare, M. Virgilio, G. Capellini, M. Zoellner, O. Skibitzki, D. Stark, G. Scalari, J. Faist, D.J. Paul, T. Grange, S. Birner, M. Scuderi, G. Nicotra, O. Moutanabbir, S. Mukherjee, L. Baldassarre, M. Ortolani, M. De Seta, “High-quality n-type Ge/SiGe multilayers for THz quantum cascade lasers”, IEEE 2019 44th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz) . Available open access at http://eprints.gla.ac.uk/202772/.

C. Ciano, M. Montanari, Luca Persichetti, L.D. Gaspare, M. Virgilio, L. Bagolini, G. Capellini, M. Zoellner, O. Skibitzki, D. Stark, G. Scalari, J. Faist, K. Rew, D.J. Paul, T. Grange, S. Birner, A. Pashkin, M. Helm, L. Baldassarre, M. Ortolani, M.D. Seta, ”Electron-doped SiGe quantum well Terahertz emitters pumped by FEL pulses”, 2019 44th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz), doi: 10.1109/IRMMW-THz.2019.8873894. Available open access at https://b2share.eudat.eu/records/ff6fe0f649ff4722b2a74301eee906d5.

D. Stark, Luca Persichetti, M. Montanari, C. Ciano, L.D. Gaspare, M.D. Seta, M. Zöllner, O. Skibitzki, G. Capellini, M. Ortolani, L. Baldassarre, M. Virgilio, T. Grange, S. Birner, K. Rew, D.J. Paul, J. Faist, G. Scalari, ”Si-based n-type THz quantum cascade emitter”, 2019 44th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz), doi: 10.1109/IRMMW-THz.2019.8874354. Available open access at https://b2share.eudat.eu/records/1ab4952f08fc4db78efbb591fe87a849.

D. Stark, Luca Persichetti, M. Montanari, C. Ciano, L.D. Gaspare, M.D. Seta, M. Zoellner, O. Skibitzki, G. Capellini, M. Ortolani, L. Baldassarre, M. Virgilio, T. Grange, S. Birner, K. Rew, D.J. Paul, J. Faist, G. Scalari, ”N-Type Ge/SiGe quantum cascade heterostructures for THz Emission”, 2019 Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference (CLEO/Europe-EQEC), doi: 10.1109/CLEOE-EQEC.2019.8872902. Available open access at https://b2share.eudat.eu/records/d29565d7ee5f409bb98198e89e39492f.

G. Scalari, A. Forrer, T. Olariu, D. Stark, M. Beck and J. Faist, "Broadband On-Chip Thz Frequency Combs,2018 43rd International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz), 2018, pp. 1-2, doi: 10.1109/IRMMW-THz.2018.8510358. Available open access at https://b2share.eudat.eu/records/5adfee991f8b439e8f86b67ef630c929.

Roma Tre University

• Electron dynamics in silicon-germanium terahertz quantum fountain structures
• Combined effect of electron and lattice temperatures on the long intersubband relaxation times of Ge/SixGe1−x quantum wells

University of Glasgow

• Intersubband electroluminescence from Si/SiGe cascade emitters at terahertz frequencies
• Intersubband lifetimes in p-Si/SiGe terahertz quantum cascade heterostructures

IHP GmbH - Innovations for High-Performance Microelectronics

• Photoluminescence from ultrathin Ge-rich multiple quantum wells observed up to room temperature: Experiments and modeling
• Structural Mapping of Functional Ge Layers Grown on Graded SiGe Buffers for sub-10 nm CMOS Applications Using Advanced X-ray Nano-Diffraction

ETH Zürich

• Quantum Cascade Laser
• THz and sub-THz quantum cascade lasers

nextnano GmbH

• Contrasting influence of charged impurities on transport and gain in terahertz quantum cascade lasers
• Efficient method for the calculation of dissipative quantum transport in quantum cascade lasers

Please refer to this page for a list.