THz Generation by Two-Color Plasma: Time Shaping and Ultra-Broadband Polarimetry

Autor: Domenico Paparo, Anna Martinez, Andrea Rubano, Jonathan Houard, Ammar Hideur, Angela Vella

Publikováno v: Sensors, Vol 24, Iss 13, p 4265 (2024)

The generation of terahertz radiation via laser-induced plasma from two-color femtosecond pulses in air has been extensively studied due to its broad emission spectrum and significant pulse energy. However, precise control over the temporal propertie

Externí odkaz: https://doaj.org/article/1dd042cdab794b649920067e1270d17f

Capacitive effect in ultrafast laser-induced emission from low conductance diamond nanotips

Autor: Olivier Torresin, Julien Mauchain, Mario Borz, Ivan Blum, Angela Vella, Benoit Chalopin

Publikováno v: New Journal of Physics, Vol 22, Iss 8, p 083055 (2020)

Single crystal diamond nanotips reveal a new behavior for ultrafast laser-induced electron emission. Under tightly focused femtosecond laser illumination, electron yield shows a saturation with the laser intensity. When the DC bias is sufficient for

Externí odkaz: https://doaj.org/article/bd62e71de9cf44df9773d16df50859e8

Polarization-resolved photoluminescence study of an atom probe tip containing a ZnO-(Mg,Zn)O heterostructure

Autor: Pradip Dalapati, Eric Weikum, Georges Beainy, Enrico Di Russo, Jonathan Houard, Simona Moldovan, Angela Vella, Jean Michel Chauveau, Maxime Hugues, Nolwenn Le Biavan, Maria Tchernycheva, François H. Julien, Zineb Saghi, Lorenzo Rigutti

Publikováno v: Proceedings of SPIE, the International Society for Optical Engineering
Proceedings of SPIE, the International Society for Optical Engineering, 2022, Oxide-based Materials and Devices XIII; 120020I, 12002, pp.44. ⟨10.1117/12.2614670⟩

SPIE OPTO 2022, San Francisco, California, United States; International audience; We studied polarization-resolved photoluminescence originating from a ZnO-(Mg,Zn)O quantum well heterostucture embedded within an atom probe tip, i.e. a nanoscale needl

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5dbbbd37f9d902f9288ccbd800202938
https://doi.org/10.1117/12.2614670

Ion evaporation by single-cycle terahertz pulses

Autor: Matthias Boudant, Angela Vella, Gerald Da Costa, Ammar Hideur, Mincheng Tang, Anas Ayoub, Antoine Normand, Jonathan Houard, L. Arnoldi

Publikováno v: 2021 Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference (CLEO/Europe-EQEC).

Picosecond duration terahertz pulses are suitable for many applications and, recently, their ability to trigger electron emission from nanometric samples has been demonstrated [1] , [2] . The development of similar approaches to drive ions emission i

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::c4fab74eb02dece61e3b1cd0273bc2ac
https://doi.org/10.1109/cleo/europe-eqec52157.2021.9541585

Photoassisted and multiphoton emission from single-crystal diamond needles

Autor: M. H. Mammez, G. Da Costa, Jonathan Houard, Angela Vella, Victor I. Kleshch, Mario Borz, Alexander N. Obraztsov, Fabien Delaroche, Ivan Blum, A. Haboucha, Ammar Hideur, Saïd Idlahcen

Publikováno v: Nanoscale
Nanoscale, Royal Society of Chemistry, 2019, 11 (14), pp.6852-6858. ⟨10.1039/C9NR01001G⟩
Nanoscale, 2019, 11 (14), pp.6852-6858. ⟨10.1039/C9NR01001G⟩

Practical realization of stable and high brightness sources of ultra-short electron pulses is an important issue in the development of time-resolved electron microscopy for the study of ultra-fast dynamics in materials. Here, we report on the experim

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::41c7db213fe9c772edbd58dead10957a
https://doi.org/10.1039/c9nr01001g