He ion implantation induced He bubbles and hardness in tungsten
نویسندگان
چکیده
منابع مشابه
WR bubbles and He emission ⋆
We present the very first high quality images of the He λ4686 emission in three high excitation nebulae of the Magellanic Clouds. A fourth high excitation nebula , situated around the WR star BAT99-2 , was analysed in a previous letter. Using VLT FORS data , we investigate the morphology of the ring nebulae around the early-type WN stars BAT99-49 & AB7. We derive the total He fluxes for e...
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Single and double planar waveguides were fabricated by 2 MeV and 4 MeV He implantation in ZBLAN. Calculation of ion implantation parameters, cut-off wavelength measurement and near-field detection indicate that ∆n is negative, typically -1x10. 1999 Optical Society of America OCIS codes: (130.3130) Integrated optics materials; (230.7390) Waveguides, planar.
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We present the very first high quality images of the He λ4686 emission in three high excitation nebulae of the Magellanic Clouds. A fourth high excitation nebula, situated around the WR star BAT99-2, was analysed in a previous letter. Using VLT FORS data, we investigate the morphology of the ring nebulae around the early-type WN stars BAT99-49 & AB7. We derive the total He fluxes for each...
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We discuss the interaction between nanometer-sized defects (atomic bubbles) and elementary excitations (phonons) in quantum fluids and solids. We observe that optical excitations in embedded metal atoms induce bubble expansions/contractions that create strongly localized phonon wave packets in the quantum matrix. We derive the structure and dynamics of these vibronic excitations from the experi...
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ژورنال
عنوان ژورنال: Nuclear Materials and Energy
سال: 2018
ISSN: 2352-1791
DOI: 10.1016/j.nme.2018.05.004