Zobrazeno 1 - 10
of 18
pro vyhledávání: '"Theodore G. Jones"'
Publikováno v:
Shock and Vibration, Vol 10, Iss 3, Pp 147-157 (2003)
Underwater shocks and bubbles were generated using a high energy pulsed laser system. The advantages of this experimental approach are: (1) precisely controlled and measured experimental conditions; (2) improved diagnostics, including extensive imagi
Externí odkaz:
https://doaj.org/article/497f45ac48a840a1897303f2681a56d0
Autor:
J. Ryan Peterson, Bahman Hafizi, Yu-hsin Chen, Theodore G. Jones, Luke A. Johnson, Antonio Ting, Daniel F. Gordon
Publikováno v:
Frontiers in Optics + Laser Science 2022 (FIO, LS).
Nonlinear propagation of intense laser pulses in condensed media, including liquid water, is under study in experiments and numerical modeling. Recent simulations reveal previously unknown laser-generated plasma effects on stimulated Raman scattering
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1e5c27cddd31dc3d35124b329ccabb0a
https://doi.org/10.1364/fio.2022.jtu5b.10
https://doi.org/10.1364/fio.2022.jtu5b.10
Autor:
J. Ryan Peterson, Bahman Hafizi, Theodore G. Jones, Luke A. Johnson, Daniel F. Gordon, Yu-Hsin Chen, Antonio Ting
Publikováno v:
Optics Express. 30:46944
Stimulated Raman scattering is ubiquitous in many high-intensity laser environments. Parametric four-wave mixing between the pump and Raman sidebands can affect the Raman gain, but stringent phase matching requirements and strongly nonlinear dynamics
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::dd9a925d865ac41b6a04f5468e3599f6
https://doi.org/10.1364/oe.474104
https://doi.org/10.1364/oe.474104
Autor:
Yu-hsin Chen, Theodore G. Jones, Bahman Hafizi, Daniel Gordon, Luke Johnson, J. Ryan Peterson
Publikováno v:
2021 IEEE International Conference on Plasma Science (ICOPS).
Intense laser interactions in condensed optical media are under study at NRL for several Navy applications, including remote undersea laser acoustic generation and advanced micromachining. We have developed models and simulation codes for nonlinear p
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d256436306a3eec444aa6bb99194f882
https://doi.org/10.1109/icops36761.2021.9588410
https://doi.org/10.1109/icops36761.2021.9588410
Autor:
Alexander B. Stamm, Dmitri Kaganovich, John Palastro, Luke Johnson, Yu-hsin Chen, J. Ryan Peterson, Antonio Ting, Theodore G. Jones, Michael Helle, Bahman Hafizi
Publikováno v:
Optics Letters. 45:4344
Meter-scale nonlinear propagation of a picosecond ultraviolet laser beam in water, sufficiently intense to cause stimulated Raman scattering (SRS), nonlinear focusing, pump-Stokes nonlinear coupling, and photoexcitation, was characterized in experime
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c6877b85d1a538ddde89d23ac893efe0
https://doi.org/10.1364/ol.398153
https://doi.org/10.1364/ol.398153
Autor:
Dmitri Kaganovich, Yu-hsin Chen, Michael Helle, Antonio Ting, Daniel Gordon, Theodore G. Jones, Bahman Hafizi, John Palastro
Raman backscattered radiation of intense laser pulses in plasma is investigated for a wide range of intensities relevant to laser wakefield acceleration. The weakly nonlinear dispersion relation for Raman backscattering predicts an intensity and dens
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::69310a56690a94820d09d86c9856b2d9
Autor:
Daniel Gordon, Dmitri Kaganovich, Theodore G. Jones, Bahman Hafizi, John Palastro, Joseph Penano, Michael Helle
Publikováno v:
Optics letters. 40(7)
The physical processes associated with propagation of a high-power (power > critical power for self-focusing) laser beam in water include nonlinear focusing, stimulated Raman scattering (SRS), optical breakdown, and plasma formation. The interplay be
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0dd7907c430bf86e9e2d9bd6d6fd42d3
https://pubmed.ncbi.nlm.nih.gov/25831383
https://pubmed.ncbi.nlm.nih.gov/25831383
Publikováno v:
Shock and Vibration, Vol 10, Iss 3, Pp 147-157 (2003)
Underwater shocks and bubbles were generated using a high energy pulsed laser system. The advantages of this experimental approach are: (1) precisely controlled and measured experimental conditions; (2) improved diagnostics, including extensive imagi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::724367c900986ba7c514a654211dd5ea
https://doaj.org/article/497f45ac48a840a1897303f2681a56d0
https://doaj.org/article/497f45ac48a840a1897303f2681a56d0
Autor:
Dmitri Kaganovich, Yu-hsin Chen, Michael Helle, John Palastro, Alexander B. Stamm, Theodore G. Jones, Bahman Hafizi, Richard Fischer
Publikováno v:
The Journal of the Acoustical Society of America. 141:4027-4027
NRL is developing underwater laser acoustic generation techniques using nonlinear optics to form shaped plasmas. One or more laser pulses are focused to ionization intensity in water, where enhanced absorption causes plasma generation and intense loc
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d6f284e6662dadce9a5dc7a0ca2be3ae
https://doi.org/10.1121/1.4989277
https://doi.org/10.1121/1.4989277
Publikováno v:
Conference on Lasers and Electro-Optics/International Quantum Electronics Conference.
Both femtosecond and nanosecond laser pulses can produce nonlinear effects in water, including filamentation and laser-induced breakdown resulting in acoustic generation. We examine the effects of GVD, varying wavelength, bandwidth, energy, and focus
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::acb86aa3b3e4c4548839dfdd85227464
https://doi.org/10.1364/cleo.2009.cmq1
https://doi.org/10.1364/cleo.2009.cmq1