Zobrazeno 1 - 10
of 13
pro vyhledávání: '"Nicolas Couture"'
Autor:
Nicolas Couture, Wei Cui, Markus Lippl, Rachel Ostic, Défi Junior Jubgang Fandio, Eeswar Kumar Yalavarthi, Aswin Vishnuradhan, Angela Gamouras, Nicolas Y. Joly, Jean-Michel Ménard
Publikováno v:
Nature Communications, Vol 14, Iss 1, Pp 1-7 (2023)
Abstract Slow motion movies allow us to see intricate details of the mechanical dynamics of complex phenomena. If the images in each frame are replaced by terahertz (THz) waves, such movies can monitor low-energy resonances and reveal fast structural
Externí odkaz:
https://doaj.org/article/13183dada833417492243626877857f3
Broadband and tunable time-resolved THz system using argon-filled hollow-core photonic crystal fiber
Autor:
Wei Cui, Aidan W. Schiff-Kearn, Emily Zhang, Nicolas Couture, Francesco Tani, David Novoa, Philip St.J. Russell, Jean-Michel Ménard
Publikováno v:
APL Photonics, Vol 3, Iss 11, Pp 111301-111301-6 (2018)
We demonstrate broadband, frequency-tunable, phase-locked terahertz (THz) generation and detection based on difference frequency mixing of temporally and spectrally structured near-infrared (NIR) pulses. The pulses are prepared in a gas-filled hollow
Externí odkaz:
https://doaj.org/article/cb483c2959894c328ece217c8c476b2a
Autor:
Nicolas Couture, Mamoun Wahbeh, Akif Ahmed, Garland Best, Angela Gamouras, Jean-Michel Ménard
Publikováno v:
Nonlinear Frequency Generation and Conversion: Materials and Devices XXII.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::791a05b92bb03101c9b3f40ec52a4dc4
https://doi.org/10.1117/12.2648982
https://doi.org/10.1117/12.2648982
Autor:
Nicolas Couture, Jakob Schlosser, Akif Ahmed, Mamoun Wahbeh, Garland Best, Angela Gamouras, Jean-Michel Ménard
Publikováno v:
Applied Optics. 62:4097
Terahertz time-domain spectroscopy (THz-TDS) is a powerful technique that enables the characterization of a large range of bulk materials, devices, and products. Although this technique has been increasingly used in research and industry, the standar
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1535bde01a55548b29c0aaa43df6e44b
https://doi.org/10.1364/ao.486938
https://doi.org/10.1364/ao.486938
Autor:
Nicolas Couture, Wei Cui, Markus Lippl, Rachel Ostic, Défi Junior Jubgang Fandio, Eeswar Kumar Yalavarthi, Aswin Vishnu Radhan, Angela Gamouras, Nicolas Joly, Jean-Michel Ménard
Publikováno v:
Frontiers in Optics + Laser Science 2022 (FIO, LS).
We present a system capable of single-pulse terahertz time-domain spectroscopy at an acquisition rate of 50 kHz. We demonstrate the capabilities of our system by monitoring sub-millisecond dynamics of carriers injected in Si.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1603ac452a94325ebcbccbd0b8f362df
https://doi.org/10.1364/fio.2022.fw6c.2
https://doi.org/10.1364/fio.2022.fw6c.2
Autor:
Jean-Michel Ménard, P. Harshavardhan Reddy, Nicolas Couture, Rachel Ostic, Mukul Chandra Paul, Ajoy K. Kar
Publikováno v:
2021 Photonics North (PN).
We simulate depolarization mechanisms in optical fiber based on linear and nonlinear effects, including a linear polarization mode coupling term to reproduce experimental observations.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7242b4e89ea114b1bc57a236fecdda40
https://doi.org/10.1109/pn52152.2021.9597994
https://doi.org/10.1109/pn52152.2021.9597994
Autor:
Jean-Michel Ménard, Nicolas Couture, Mukul Chandra Paul, Ajoy K. Kar, Rachel Ostic, P. Harshavardhan Reddy
Publikováno v:
Frontiers in Optics / Laser Science.
We present a novel broadband spectrometer that resolves an orthogonal set of linear polarization states. Our system reveals the frequency-dependent nature of depolarization mechanisms occurring in highly-nonlinear fibers.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a2a2bdf3cffa6ac32df863a11b5642d8
https://doi.org/10.1364/fio.2020.fth1e.5
https://doi.org/10.1364/fio.2020.fth1e.5
Autor:
Jean-Michel Ménard, Mukul Chandra Paul, Ajoy Kumar Kar, Nicolas Couture, P. Harshavardhan Reddy, Rachel Ostic
Publikováno v:
Journal of Physics: Photonics. 3:025002
We characterize the polarization properties of a supercontinuum (SC) generated in a GeO2-doped photonic crystal fiber (PCF) to reveal the interplay between nonlinear broadening mechanisms of a pulse propagating in two independent fundamental modes as
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ac289c96a854d04d26f8774a45ae43a3
https://doi.org/10.1088/2515-7647/abe7d9
https://doi.org/10.1088/2515-7647/abe7d9
Broadband and tunable time-resolved THz system using argon-filled hollow-core photonic crystal fiber
Autor:
David Novoa, Emily Z. Zhang, Jean-Michel Ménard, Wei Cui, Philip St. J. Russell, Nicolas Couture, Francesco Tani, Aidan W. Schiff-Kearn
Publikováno v:
APL Photonics
APL Photonics, Vol 3, Iss 11, Pp 111301-111301-6 (2018)
APL Photonics, Vol 3, Iss 11, Pp 111301-111301-6 (2018)
We demonstrate broadband, frequency-tunable, phase-locked terahertz (THz) generation and detection based on difference frequency mixing of temporally and spectrally structured near-infrared (NIR) pulses. The pulses are prepared in a gas-filled hollow
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::aa79a013d8abef6a75539d3dc3d68cc2
https://hdl.handle.net/21.11116/0000-0002-B687-821.11116/0000-0002-B685-A
https://hdl.handle.net/21.11116/0000-0002-B687-821.11116/0000-0002-B685-A
Autor:
Jean-Michel Ménard, Aidan W. Schiff-Kearn, Philip St. J. Russell, David Novoa, Francesco Tani, Emily Z. Zhang, Nicolas Couture, Wei Cui
Publikováno v:
2018 Photonics North (PN).
We demonstrate a frequency-tunable phase-locked terahertz (THz) source relying on nonlinear optical propagation of a femtosecond near-infrared pulse inside a gas-filled hollow-core photonic-crystal fiber (HC-PCF).
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3d52350d94badf385c75c4c068257c02
https://doi.org/10.1109/pn.2018.8438843
https://doi.org/10.1109/pn.2018.8438843