| Germanium-based integrated photonics from near-to mid-infrared applications D Marris-Morini, V Vakarin, JM Ramirez, Q Liu, A Ballabio, J Frigerio, ... Nanophotonics 7 (11), 1781-1793, 2018 | 203 | 2018 |
| Graded SiGe waveguides with broadband low-loss propagation in the mid infrared JM Ramirez, Q Liu, V Vakarin, J Frigerio, A Ballabio, X Le Roux, ... Optics express 26 (2), 870-877, 2018 | 125 | 2018 |
| L-shaped fiber-chip grating couplers with high directionality and low reflectivity fabricated with deep-UV lithography D Benedikovic, C Alonso-Ramos, D Pérez-Galacho, S Guerber, V Vakarin, ... Optics Letters 42 (17), 3439-3442, 2017 | 113 | 2017 |
| On-chip mid-infrared supercontinuum generation from 3 to 13 μm wavelength M Montesinos-Ballester, C Lafforgue, J Frigerio, A Ballabio, V Vakarin, ... ACS photonics 7 (12), 3423-3429, 2020 | 93 | 2020 |
| Low-loss Ge-rich Si0.2Ge0.8 waveguides for mid-infrared photonics JM Ramirez, V Vakarin, C Gilles, J Frigerio, A Ballabio, P Chaisakul, ... Optics letters 42 (1), 105-108, 2016 | 81 | 2016 |
| On-chip Fourier-transform spectrometer based on spatial heterodyning tuned by thermo-optic effect M Montesinos-Ballester, Q Liu, V Vakarin, JM Ramirez, C Alonso-Ramos, ... Scientific Reports 9 (1), 14633, 2019 | 62 | 2019 |
| Mid-infrared sensing between 5.2 and 6.6 µm wavelengths using Ge-rich SiGe waveguides Q Liu, JM Ramirez, V Vakarin, X Le Roux, A Ballabio, J Frigerio, ... Optical Materials Express 8 (5), 1305-1312, 2018 | 61 | 2018 |
| Ge-rich graded-index Si1-xGex waveguides with broadband tight mode confinement and flat anomalous dispersion for nonlinear mid-infrared photonics JM Ramirez, V Vakarin, J Frigerio, P Chaisakul, D Chrastina, X Le Roux, ... Optics Express 25 (6), 6561-6567, 2017 | 59 | 2017 |
| Ultra-wideband Ge-rich silicon germanium integrated Mach–Zehnder interferometer for mid-infrared spectroscopy V Vakarin, JM Ramírez, J Frigerio, A Ballabio, X Le Roux, Q Liu, ... Optics letters 42 (17), 3482-3485, 2017 | 58 | 2017 |
| Broadband integrated racetrack ring resonators for long-wave infrared photonics JM Ramirez, Q Liu, V Vakarin, X Le Roux, J Frigerio, A Ballabio, ... Optics letters 44 (2), 407-410, 2019 | 45 | 2019 |
| Integrated broadband dual-polarization Ge-rich SiGe mid-infrared Fourier-transform spectrometer Q Liu, JM Ramirez, V Vakarin, X Le Roux, C Alonso-Ramos, J Frigerio, ... Optics letters 43 (20), 5021-5024, 2018 | 43 | 2018 |
| Recent progress on Ge/SiGe quantum well optical modulators, detectors, and emitters for optical interconnects P Chaisakul, V Vakarin, J Frigerio, D Chrastina, G Isella, L Vivien, ... Photonics 6 (1), 24, 2019 | 41 | 2019 |
| Nonlinear Properties of Ge-rich Si1−xGex Materials with Different Ge Concentrations S Serna, V Vakarin, JM Ramirez, J Frigerio, A Ballabio, X Le Roux, ... Scientific reports 7 (1), 14692, 2017 | 41 | 2017 |
| Ge-rich graded SiGe waveguides and interferometers from 5 to 11 µm wavelength range M Montesinos-Ballester, V Vakarin, Q Liu, X Le Roux, J Frigerio, ... Optics express 28 (9), 12771-12779, 2020 | 37 | 2020 |
| Giant electro-optic effect in Ge/SiGe coupled quantum wells J Frigerio, V Vakarin, P Chaisakul, M Ferretto, D Chrastina, X Le Roux, ... Scientific reports 5 (1), 15398, 2015 | 36 | 2015 |
| Optical modulation in Ge-rich SiGe waveguides in the mid-infrared wavelength range up to 11 µm M Montesinos-Ballester, V Vakarin, JM Ramirez, Q Liu, C Alonso-Ramos, ... Communications Materials 1 (1), 6, 2020 | 35 | 2020 |
| On-chip Bragg grating waveguides and Fabry-Perot resonators for long-wave infrared operation up to 8.4 µm Q Liu, JM Ramirez, V Vakarin, X Le Roux, J Frigerio, A Ballabio, ... Optics Express 26 (26), 34366-34372, 2018 | 27 | 2018 |
| Ultra-wideband Ge-rich silicon germanium mid-infrared polarization rotator with mode hybridization flattening V Vakarin, WN Ye, JM Ramírez, Q Liu, J Frigerio, A Ballabio, G Isella, ... Optics Express 27 (7), 9838-9847, 2019 | 24 | 2019 |
| Metamaterial-engineered silicon beam splitter fabricated with deep UV immersion lithography V Vakarin, D Melati, TTD Dinh, X Le Roux, WKK Kan, C Dupré, B Szelag, ... Nanomaterials 11 (11), 2949, 2021 | 23 | 2021 |
| O-band quantum-confined Stark effect optical modulator from Ge/Si0. 15Ge0. 85 quantum wells by well thickness tuning P Chaisakul, J Frigerio, D Marris-Morini, V Vakarin, D Chrastina, G Isella, ... Journal of Applied Physics 116 (19), 2014 | 23 | 2014 |
