(INVITED)Study of dopant distribution in Cr4+:YAG transparent ceramics and its use as passively Q-switching media in Nd:YAG laser delivering 38 mJ per pulse

Autor: Camille Perrière, Rémy Boulesteix, Alexandre Maître, Benjamin Forestier, Alain Jalocha, Alain Brenier

Publikováno v: Optical Materials: X, Vol 12, Iss , Pp 100107- (2021)

In this work, the role of elaboration parameters (i.e. chemical composition and heat treatments) of Cr:YAG ceramics on their microstructural, optical and laser properties was investigated. Transparent ceramics were manufactured by solid-state reactiv

Externí odkaz: https://doaj.org/article/89ca24f257804c5eba14f742782c629c

Some aspects of scaling the orbital angular momentum of light with conical diffraction

Autor: A. Majchrowski, Edward Michalski, Alain Brenier

Publikováno v: Optik
Optik, Elsevier, 2021, 227, pp.166020. ⟨10.1016/j.ijleo.2020.166020⟩
Optik, Elsevier, 2020, ⟨10.1016/j.ijleo.2020.166020⟩

The mechanisms leading to scaling the orbital angular momentum (OAM) from a Gaussian beam with no OAM up to integers 1, 2… have been pointed out in the cascaded conical diffraction process. The study is illustrated with two different biaxial crysta

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6b942f34a5a35a8602d0aea2d413fd08
https://hal.archives-ouvertes.fr/hal-03029832v2/document

Investigation of the sum of orbital angular momentum generated by conical diffraction

Autor: Alain Brenier

Publikováno v: Journal of Optics
Journal of Optics, Institute of Physics (IOP), 2020, 22 (4), pp.045603. ⟨10.1088/2040-8986/ab76a7⟩

International audience; The conical diffraction (CD) of a wave propagating along the optical axis of a biaxial crystal is an intriguing phenomenon with nowadays applications including imaging or optical communications. More the emerging light can hav

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e5a89dc2788dc31413e01b774810a13f
https://hal.archives-ouvertes.fr/hal-02480218/document

Differences and Similarities between Lanthanum and Rare-Earth Iodate Anhydrous Polymorphs: Structures, Thermal Behaviors, and Luminescent Properties

Autor: Yan Suffren, Olivier Leynaud, Isabelle Gautier-Luneau, Alain Brenier, Philippe Plaindoux

Publikováno v: Inorganic Chemistry
Inorganic Chemistry, 2016, 55 (21), pp.11264--11272. ⟨10.1021/acs.inorgchem.6b01850⟩
Inorganic Chemistry, American Chemical Society, 2016, 55 (21), pp.11264--11272. ⟨10.1021/acs.inorgchem.6b01850⟩

International audience; The Ln(IO)(HIO) (y = 1 or 1.33) compounds are isostructural with the La(IO)(HIO) phases, but thermal studies reveal different behaviors. On the one hand, the partial thermal decompositions of these lanthanide compounds lead to

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::08e049a0c49be3a37426ab2a220c19b8
https://doi.org/10.1021/acs.inorgchem.6b01850

THz generation from DFG in a noncollinear phase-matched GaP crystal pumped with a compact diode-pumped two-frequency LiYF4:Nd laser

Autor: Alain Brenier

Publikováno v: Applied Physics B-Laser and Optics
Applied Physics B-Laser and Optics, Springer Verlag, 2018, 124, pp.194. ⟨10.1007/s00340-018-7063-1⟩

Pumping with a nanosecond two-frequency compact diode-pumped LiYF4:Nd laser emitting at 1047 and 1053 nm, a THz wave has been produced in a GaP crystal, attributed to the difference frequency generation process $$\frac{1}{{{\lambda _3}}} - \frac{1}{{

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b1cc4881c8bf213fc6d1eb90a939be2b
https://doi.org/10.1007/s00340-018-7063-1