Publications of Hassan A. Hafez

Hafez, H. A.; Kovalev, S.; Tielrooij, K.-J.; Bonn, M.; Gensch, M.; Turchinovich, D.: Terahertz Nonlinear Optics of Graphene: From Saturable Absorption to High-Harmonics Generation. Advanced Optical Materials 8 (3), 1900771 (2020)

Hafez, H. A.; Kovalev, S.; Deinert, J. C.; Mics, Z.; Green, B.; Awari, N.; Chen, M.; Germanskiy, S.; Lehnert, U.; Teichert, J. et al.; Wang, Z.; Tielrooij, K. J.; Liu, Z.; Chen, Z.; Narita, A.; Müllen, K.; Bonn, M.; Gensch, M.; Turchinovich, D.: Extremely efficient terahertz high-harmonic generation in graphene by hot Dirac fermions. Nature 561 (7724), pp. 507 - 511 (2018)

Hafez, H. A.; Chai, X.; Sekine, Y.; Takamura, M.; Oguri, K.; Al-Naib, I.; Dignam, M. M.; Hibino, H.; Ozaki, T.: Effects of environmental conditions on the ultrafast carrier dynamics in graphene revealed by terahertz spectroscopy. Physical Review B 95 (16), 165428 (2017)

Mondal, S.; Hafez, H. A.; Ropagnol, X.; Ozaki, T.: MV/cm terahertz pulses from relativistic laser-plasma interaction characterized by nonlinear terahertz absorption bleaching in n-doped InGaAs. Optics Express 25 (15), pp. 17511 - 17523 (2017)

Mondal, S.; Wei, Q.; Ding, W. J.; Hafez, H. A.; Fareed, M. A.; Laram, A. E.; Ropagnol, X.; Zhang, G.; Sun, S.; Sheng, Z. M. et al.; Zhang, J.; Ozaki, T.: Aligned copper nanorod arrays for highly efficient generation of intense ultra-broadband THz pulses. Scientific Reports 7, 40058 (2017)

Hafez, H. A.; Tielrooij, K.-J.; Bonn, M.; Turchinovich, D.: Control of Terahertz Nonlinearity in Graphene by Gating. In: IEEE Xplore, Vol. 2019, 8874288. 44th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz), Paris, France, September 01, 2019 - September 06, 2019. IEEE (2019)

Hafez, H. A.; Kovalev, S.; Deinert, J.-C.; Jan-Tielrooij, K.; Bonn, M.; Gensch, M.; Turchinovich, D.: Graphene: The ultimate nonlinear material at terahertz frequencie. In: Terahertz Science and Applications 2019, TTu2G.1. Terahertz Science and Applications, TSA_2019 : session: Novel Material for Terahertz Applications (TTu2G), Wuhan, China, November 11, 2019 - November 14, 2019. OSA - The Optical Society, Washington, DC (2019)