Giant metastatic mixed-type spinal ependymoma presenting with hydrocephalus

Autor: Anass Benomar, MD, MSc, Abdelhakim Khellaf, MD, Lynda Kadi, MD, José Ferreira, MD, Pascal Lavergne, MD, François Bergeron, MD, Mathieu Laroche, MD, MSc

Publikováno v: Radiology Case Reports, Vol 19, Iss 11, Pp 4751-4754 (2024)

Ependymomas are rare nervous system tumors that can arise anywhere in the neuraxis. While having a high propensity for leptomeningeal dissemination, retrograde dissemination (from the spine to the CNS) remains infrequent. We describe the case of a 31

Externí odkaz: https://doaj.org/article/5bd16e7f11a94acbaf0ae4444c4d2104

In-band pumped Tm,Ho:LiYF

Autor: Pavel, Loiko, Esrom, Kifle, Gurvan, Brasse, Romain, Thouroude, Florent, Starecki, Abdelmjid, Benayad, Alain, Braud, Mathieu, Laroche, Sylvain, Girard, Hervé, Gilles, Patrice, Camy

Publikováno v: Optics express. 30(7)

A 4.5 at.% Tm, 0.5 at.% Ho:LiYF

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=pmid________::038452af7767a5bbf7b4eafb711855ae
https://pubmed.ncbi.nlm.nih.gov/35473119

Incidence and characteristics of cerebral hypoxia after craniectomy in brain-injured patients: a cohort study

Autor: Jean-François Giguère, Francis Bernard, David Williamson, Alexandrine Gagnon, Marc Giroux, Mathieu Laroche

Publikováno v: Journal of Neurosurgery. :1-8

OBJECTIVEAfter craniectomy, although intracranial pressure (ICP) is controlled, episodes of brain hypoxia might still occur. Cerebral hypoxia is an indicator of poor outcome independently of ICP and cerebral perfusion pressure. No study has systemati

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::aa02d9467c45d67c3d8050c3fe896735
https://doi.org/10.3171/2020.6.jns20776

Linearly-polarized pulsed Nd-doped fiber MOPA at 905 nm and frequency conversion to deep-UV at 226 nm

Autor: Alexandre Barnini, Kilian Le Corre, Mathieu Laroche, Pascal Guitton, Thierry Robin, Hervé Gilles, Giorgio Santarelli, Louanne Kervella, Benoit Cadier, Sylvain Girard

Publikováno v: Optics Express
Optics Express, Optical Society of America-OSA Publishing, 2021, 29 (3), pp.4240. ⟨10.1364/OE.416570⟩
Optics Express, 2021, 29 (3), pp.4240. ⟨10.1364/OE.416570⟩

International audience; We present the first frequency-quadrupled linearly-polarized Q-switched neodymium-doped fiber laser generating > 500 mW average power at 226 nm. For this purpose, an amplified Q-switched oscillator using novel large-mode-area

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::572b36272ad8e3f7c57e4e1f63edeb80
https://pubmed.ncbi.nlm.nih.gov/33771008

Tm 3+ and Ho 3+ colasing in in-band pumped waveguides fabricated by femtosecond laser writing

Autor: Valentin Petrov, Esrom Kifle, Uwe Griebner, Patrice Camy, Magdalena Aguiló, Romain Thouroude, Xavier Mateos, Carolina Romero, Andrey V. Veniaminov, Yulia Gurova, Mathieu Laroche, Viktor Zakharov, Javier R. Vázquez de Aldana, Francesc Díaz, Pavel Loiko

Publikováno v: Optics Letters
Optics Letters, Optical Society of America-OSA Publishing, 2021, 46 (1), pp.122. ⟨10.1364/OL.399546⟩
GREDOS. Repositorio Institucional de la Universidad de Salamanca
instname
Optics Letters, 2021, 46 (1), pp.122. ⟨10.1364/OL.399546⟩

[EN]We report on the first, to the best of our knowledge, in-band pumped Tm3+,Ho3+ codoped waveguide (WG) laser. A depressed-index surface channel WG (type III) with a 50 µm half-ring cladding is fabricated in a 5 at. % Tm3+, 0.5 at. % Ho3+:KLu(WO4)

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f2bd65dfb3a985178488fd584667ed0b
https://hal.archives-ouvertes.fr/hal-03215884/document