Scientific production

Publications

V. Kumar, V. Cecconi, A. Cutrona, L. Peters, L. Olivieri, J. S. Totero Gongora, A. Pasquazi, and M. Peccianti, "Terahertz microscopy through complex media," Sci. Rep. 15, 11706 (2025).

V. Kumar, P. Mukherjee, L. Valzania, A. Badon, P. Mounaix, and S. Gigan, "Fourier synthetic-aperture-based time-resolved terahertz imaging," Photonics Res. 13, 407–416 (2025).

V. Cecconi, V. Kumar, J. Bertolotti, L. Peters, A. Cutrona, L. Olivieri, A. Pasquazi, J. S. Totero Gongora, and M. Peccianti, "Terahertz Spatiotemporal Wave Synthesis in Random Systems," ACS Photonics 11, 362–368 (2024).

V. Cecconi, V. Kumar, A. Pasquazi, J. S. Totero Gongora, and M. Peccianti, "Nonlinear field-control of terahertz waves in random media for spatiotemporal focusing," Open Res. Eur. 2, 32 (2022).

V. Kumar, V. Cecconi, L. Peters, J. Bertolotti, A. Pasquazi, J. S. Totero Gongora, and M. Peccianti, "Deterministic Terahertz Wave Control in Scattering Media," ACS Photonics 9, 2634–2642 (2022).

J. S. Totero Gongora, L. Olivieri, L. Peters, J. Tunesi, V. Cecconi, A. Cutrona, R. Tucker, V. Kumar, A. Pasquazi, and M. Peccianti, "Route to Intelligent Imaging Reconstruction via Terahertz Nonlinear Ghost Imaging," Micromachines 11, 521 (2020).

S. Sharma, V. Kumar, P. Rawat, J. Ghosh and V. Venkataraman, "Nanowaveguide Designs in 220-nm SOI for Ultra-Broadband FWM at Telecom Wavelengths", IEEE Journal of Quantum Electronics, 56-5, 1-8 (2020).

Conferences

Plenary

V. Kumar, L. Valzania, S. Gigan, P. Mukherjee, D. Bigourd, P. Mounaix, "3D imaging with THz wave", French-German TeraHertz Conference 2025 (Siegen, Germany).

Keynote

V. Kumar, P. Mukherjee, F. Fauquet, A. Badon, P. Mounaix, S. Gigan, "Terahertz Fourier Ptychography For Complex Media Imaging", 49th International Conference on Infrared, Millimeter, and Terahertz Waves-IRMMW-THz 2024 (Perth, Australia).

J. S. Totero Gongora, L. Olivieri, L. Peters, V. Cecconi, A. Cutrona, J. Tunesi, R. Tucker, V. Kumar, A. Pasquazi, and M. Peccianti, "Time-resolved nonlinear ghost imaging", SPb-POEM 2021 (St. Petersburg, Russia).

Invited

V. Kumar, "Terahertz Wave Control in Complex Media", Optica Student Chapter and SPIE student chapter-2024 (Indian Institute of Technology-Delhi, India).

V. Kumar, V. Cecconi, J. S. Totero Gongora, L. Peters, L. Olivieri, J. Bertolotti, A. Pasquazi, M. Peccianti, "Terahertz Spatiotemporal Wave Control in Complex Media”, 2024-GdR Complexe Annual Meeting (Paris, France).

V. Cecconi, V. Kumar, J. S. Totero Gongora, L. Peters, L. Olivieri, J. Bertolotti, A. Pasquazi, and M. Peccianti, "Nonlinear Ghost Imaging for Scattering-Assisted Terahertz Waveform Synthesis", 2023 48th International Conference on Infrared, Millimeter, and Terahertz Waves-IRMMW-THz (Montreal, QC, Canada).

V. Cecconi, V. Kumar, J. S. Totero Gongora, L. Peters, L. Olivieri, J. Bertolotti, A. Pasquazi, and M. Peccianti, "The Nonlinear Ghost Imaging Route to Harnessing Random Propagation", IEEE Summer Topical Meeting–SUM 2022 (Cabo San Luca, Mexico).

V. Cecconi, V. Kumar, A. Pasquazi, J. S. Totero Gongora, and M. Peccianti, "Spatiotemporal superfocusing of ultrafast terahertz waves in complex media", Optica-Advanced Photonics Congress- 2022 (Maastricht, Netherlands).

V. Kumar, V. Cecconi, A. Pasquazi, J. S. T. Gongora, and M. Peccianti, "Seeing through Scattering", Quantum Talks-2021 (University of Sussex, UK).

Talk

P. Mukherjee, V. Kumar, F. Fauquet, S. Gigan, P. Mounaix, "Terahertz Phase Imaging from a Sequence of Diffraction Patterns", 2025 CLEO/Europe-EQEC (Munich, Germany). 2025 EPS-QEOD/ Young Minds Best Student Presentation Award

V. Kumar, P. Mukherjee, F. Fauquet, S. Gigan, P. Mounaix, "Nonlinear Optimization Algorithm for Terahertz Phase Retrieval", French-German TeraHertz Conference 2025 (Siegen, Germany).

V. Kumar, P. Mukherjee, F. Fauquet, S. Gigan, P. Mounaix, "Terahertz Phase Retrieval from Multi-plane Intensity Measurements", 50th International Conference on Infrared, Millimeter and Terahertz Waves-IRMMW-THz 2025 (Espoo, Finland).

V. Kumar, P. Mukherjee, L. Valzania, A. Badon, P. Mounaix, S. Gigan, "Terahertz Synthetic Aperture-based Spatiotemporal Imaging", 50th International Conference on Infrared, Millimeter and Terahertz Waves-IRMMW-THz 2025 (Espoo, Finland).

V. Cecconi, V. Kumar, J.S. Totero Gongora, A. Cutrona, L. Peters, L. Olivieri, J. Bertolotti, A. Pasquazi, M. Peccianti, "Control of Ultrafast Terahertz Waves in Random Media", 5th Annual Conference, Expo on Lasers, Optics, Photonics Sensors, Bio Photonics, Ultrafast Nonlinear Optics & Structured Light-2025 (Florida, USA).

V. Cecconi, V. Kumar, J. Bertolotti, L. Peters, A. Cutrona, L. Olivieri, A. Pasquazi, J.S. Totero Gongora, M. Peccianti, "Experimental Demonstration of Terahertz Spatiotemporal Wave Synthesis in Random Scattering Systems", Photon 2024 (Swansea, Southwest Wales, UK).

V. Cecconi, V. Kumar, J. Bertolotti, L. Peters, A. Cutrona, L. Olivieri, A. Pasquazi, J.S. Totero Gongora, M. Peccianti, "Terahertz waveform synthesis in scattering systems via nonlinear ghost imaging", EOSAM 2024 (Naples, Italy).

V. Cecconi, V. Kumar, J. Bertolotti, L. Peters, A. Cutrona, L. Olivieri, A. Pasquazi, J.S. Totero Gongora, M. Peccianti, "Harnessing Complex Field Synthesis via Terahertz Nonlinear Ghost Imaging", MetaFUN 2024 (Palermo, Italy).

V. Kumar, V. Cecconi, L. Peters, L. Olivieri, J. S. Totero Gongora, A. Pasquazi, M. Peccianti, "Deterministic Terahertz Imaging through Scattering media", 2023 CLEO/Europe-EQEC (Munich, Germany).

V. Kumar, V. Cecconi, L. Peters, J. Bertolotti, A. Pasquazi, J. S. Totero Gongora, and M. Peccianti, "Deterministic Superfocusing of terahertz waves in random media", 47th International Conference on Infrared, Millimeter and Terahertz Waves-IRMMW-THz 2022 (Delft, Netherlands).

V. Cecconi, V. Kumar, A. Pasquazi, J. S. Totero Gongora, and M. Peccianti, "Terahertz Field Spatiotemporal Superfocusing in Complex Media", 47th International Conference on Infrared, Millimeter and Terahertz Waves-IRMMW-THz 2022 (Delft, Netherlands).

V. Cecconi, V. Kumar, A. Pasquazi, J. S. T. Gongora, and M. Peccianti, "Time-resolved, nonlinear control of terahertz waves in random media for spatiotemporal focusing", 2021 Conference on Lasers and Electro-Optics Europe European Quantum Electronics Conference-CLEO/Europe-EQEC (Munich, Germany). OSA Best Student Paper Award

V. Cecconi, V. Kumar, A. Pasquazi, J. S. T. Gongora, and M. Peccianti, "Full-Field Spatio-Temporal Shaping via Space-Time Coupling in Random Media", OSA Advanced Photonics Congress-2021 (Canada).

V. Cecconi, V. Kumar, A. Pasquazi, J. S. T. Gongora, and M. Peccianti, "Spatiotemporal control of ultrafast terahertz pulses in random media", IONS-2021 (Ireland).

V. Kumar, V. Cecconi, A. Pasquazi, J. S. T. Gongora, and M. Peccianti, "Deterministic THz wave control in scattering media", IONS-2021 (Ireland).

S. Sharma, V. Kumar, J. Ghosh and V. Venkataraman, "Design of Silicon Nano-Waveguide for Broadband Photon Pair Generation in Telecom Band", OSI - International Symposium on Optics OSI-ISO 2018 (Kanpur, India).

Poster

V. Kumar, P. Mukherjee, L. Valzania, A. Badon, P. Mounaix, S. Gigan, "High-resolution, Time-resolved Terahertz Imaging based on the Fourier Synthetic Aperture technique", French-German TeraHertz Conference 2025 (Siegen, Germany).

V. Kumar, P. Mukherjee, L. Valzania, A. Badon, P. Mounaix, S. Gigan, "Terahertz Spatiotemporal Imaging by Multiangle Beam Projection", 2025 CLEO/Europe-EQEC (Munich, Germany).

V. Kumar, V. Cecconi, L. Peters, J. Bertolotti, A. Pasquazi, J. S. Totero Gongora, and M. Peccianti, "Deterministic Terahertz wave control in complex media" Optica-Advanced Photonics Congress-2022 (Maastricht, Netherlands).

V. Kumar, V. Cecconi, A. Pasquazi, J. S. T. Gongora, and M. Peccianti, "Deterministic spatiotemporal focusing of terahertz waves through scattering media", 2021 Conference on Lasers and Electro-Optics Europe European Quantum Electronics Conference-CLEO/Europe-EQEC (Munich, Germany).

V. Kumar, S. Sharma, J. Ghosh and V. Venkataraman, "Silicon Nano Waveguide Design for Broadband Photon Pair Generation in Telecom Band using Four-Wave Mixing", Student Conference on optics and photonics-OSA SCOP 2018 (Ahmedabad, India).

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