Theoretical Investigation of Backward Optical Parametric Oscillator Pumped by Vortex Beams

Autor: Xiaosi Zhu, Jianlang He, Yawen Su, Yan Chen, Xiaopeng Hu

Publikováno v: Frontiers in Physics, Vol 10 (2022)

Nonlinear generation and manipulation of vortex beams have emerged as a research hot topic in recent years. During nonlinear frequency conversions, orbital angular momentum will transfer from the fundamental wave to harmonic waves. In this work, we s

Externí odkaz: https://doaj.org/article/1944826df332445ca692b76c911b10de

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Contrôle par le musicien des régimes d’oscillation des instruments de la famille des cuivres: Modélisation physique, mesure, analyse du système dynamique

Autor: Velut, Lionel

Publikováno v: Acoustique [physics.class-ph]. AMU-Aix Marseille Université, 2016. Français
Acoustique [physics.class-ph]. AMU-Aix Marseille Université, 2016. Français. ⟨NNT : ⟩

This thesis deals with the different oscillation regimes of brass instruments. It focuses on the way a musician can control and choose these regimes. The association of an instrument, the musician’s lips and his mouth forms a complex dynamical syst

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::d90535d2360f33d47d0ea3765a76cae1
https://hal.archives-ouvertes.fr/tel-01475123/document

Émergence des auto-oscillations dans un instrument de musique à anche simple

Autor: Silva, Fabrice

Publikováno v: Acoustique [physics.class-ph]. Université de Provence-Aix-Marseille I, 2009. Français. ⟨NNT : ⟩
Acoustique [physics.class-ph]. Université de Provence-Aix-Marseille I, 2009. Français

This document deals with the sound production in single reed woodwind instruments. Those are complex dynamical systems that can auto-oscillate within some conditions on the control of the musician. This work investigates the role of the cane reed in

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::7bc4c54f9981ec9b464b37635f6842c6
https://theses.hal.science/tel-00456719

Oscillation thresholds for 'striking outwards' reeds coupled to a resonator

Autor: Fabrice Silva, Jean Kergomard, Christophe Vergez

Publikováno v: Proceedings of the International Symposium on Musical Acoustics (ISMA) (Espagne Barcelone)
Proceedings of the International Symposium on Musical Acoustics (ISMA)
Proceedings of the International Symposium on Musical Acoustics (ISMA), Sep 2007, Barcelona, Spain. CD-ROM(7 p.)
HAL

International audience; This paper considers a "striking outwards" reed coupled to a resonator. This expression, due to Helmholtz, is not discussed here : it corresponds to the most common model of a lip-type valve, when the valve is assumed to be a

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::00179c846a427eb5136294edfca2a30f
https://hal.science/hal-00150185