High power laser delivery using anti-resonant hollow core fiber

Autor: Axel Schülzgen, Julian Martinez Mercado, Rodrigo Amezcua Correa, Amy Van Newkirk, Enrique Antonio Lopez

Publikováno v: Photonic Fiber and Crystal Devices: Advances in Materials and Innovations in Device Applications XV.

Currently, the power handling capability of optical fibers is primarily limited by glass damage thresholds and induced nonlinearities, including stimulated Brillouin scattering and stimulated Raman scattering. In order to mitigate unwanted nonlinear

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::a434378aa96037c44aee31cc1cb465cd
https://doi.org/10.1117/12.2601592

Higher order mode generation in an anti-resonant hollow-core fiber

Autor: Julian Martinez Mercado, Matthew A. Cooper, Rodrigo Amezcua Correa, Steffen Wittek, J. Enrique Antonio-Lopez, Daniel Cruz-Delgado, Joseph Wahlen

Publikováno v: Laser Technology for Defense and Security XVI.

Hollow core fibers have been investigated for several use cases relating to both single mode and multi-mode operation. Single mode, low-loss operation is a desired commodity in telecommunications and high-power delivery applications. Hollow core fibe

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::bc7fa6a3283f112d7823fed822044a78
https://doi.org/10.1117/12.2587936

Photonic lantern tip/tilt detector for adaptive optics systems

Autor: Julian Martinez-Mercado, Steffen Wittek, Matthew A. Cooper, Nicolas K. Fontaine, Jose Enrique Antonio-Lopez, Daniel Cruz-Delgado, Caleb Dobias, Juan Carlos Alvarado-Zacarias, Rodrigo Amezcua-Correa

Publikováno v: Optics Letters. 46:3292

In this work, we demonstrate a four-core multicore fiber photonic lantern tip/tilt wavefront sensor. To diagnose the low-order Zernike aberrations, we exploit the ability of the photonic lantern to encode the characteristics of a complex incoming bea

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c7ab00c5e484006c731d5d5ff6f26fa8
https://doi.org/10.1364/ol.430761

Bubble dynamics in laser lithotripsy

Autor: Julian Martinez Mercado, Milad Mohammadzadeh, Claus-Dieter Ohl

Laser lithotripsy is a medical procedure for fragmentation of urinary stones with a fiber guided laser pulse of several hundred microseconds long. Using high-speed photography, we present an in-vitro study of bubble dynamics and stone motion induced

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bdd8983536b2b0cbd57b82a3623b16ca
https://hdl.handle.net/10356/88505

How gravity and size affect the acceleration statistics of bubbles in turbulence

Autor: Yoshiyuki Tagawa, Federico Toschi, Enrico Calzavarini, Chao Sun, Vivek N. Prakash, Julian Martinez Mercado, Detlef Lohse

Publikováno v: New Journal of Physics
New Journal of Physics, Institute of Physics: Open Access Journals, 2012, 14, pp.105017. ⟨10.1088/1367-2630/14/10/105017⟩
New journal of physics 14 (2012): 105017. doi:10.1088/1367-2630/14/10/105017
info:cnr-pdr/source/autori:Vivek N Prakash, Yoshiyuki Tagawa, Enrico Calzavarini, Julián Martínez Mercado, Federico Toschi, Detlef Lohse and Chao Sun/titolo:How gravity and size affect the acceleration statistics of bubbles in turbulence/doi:10.1088%2F1367-2630%2F14%2F10%2F105017/rivista:New journal of physics/anno:2012/pagina_da:/pagina_a:105017/intervallo_pagine:105017/volume:14
New Journal of Physics, 14, 105017/1-14. Institute of Physics
New journal of physics, 14:105017. Institute of Physics (IOP)

We report results from the first systematic Lagrangian experimental investigation in the regime of very light (air bubbles in water) and large particles (D/{\eta} >> 1) in turbulence. Using a traversing camera setup and particle tracking, we study th

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4cf4d869fc6e03c4babd89b11ba6cff5
https://hal.archives-ouvertes.fr/hal-00747121