The Experts below are selected from a list of 11504094 Experts worldwide ranked by ideXlab platform
M C Downer - One of the best experts on this subject based on the ideXlab platform.
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self aligning concave relativistic plasma mirror with adjustable focus
Physics of Plasmas, 2017Co-Authors: Haien Tsai, Alexey Arefiev, Joseph M Shaw, David J Stark, Xiaoming Wang, Rafal Zgadzaj, M C DownerAbstract:We report an experimental-computational study of the optical properties of plasma mirrors (PMs) at the incident laser frequency when irradiated directly at relativistic intensity ( 10 18 < I 0 < 10 19 W / cm 2 ) by near-normally incident ( 4 ° ), high-contrast, 30 fs, 800 nm laser pulses. We find that such relativistic PMs are highly reflective ( 0.6 – 0.8 ) and focus a significant fraction of reflected light to intensity as large as ∼ 10 I 0 at distance f as small as ∼ 25 μ m from the PM, provided that pre-pulses do not exceed 1014 W/cm2 prior to ∼ 20 ps before arrival of the main pulse peak. Particle-in-cell simulations show that focusing results from denting of the reflecting surface by light pressure combined with relativistic transparency and that reflectivity and f can be adjusted by controlling pre-plasma length L over the range 0.5 ≲ L ≲ 3 μ m. Pump-probe reflectivity measurements show that the PM's focusing properties evolve on a ps time scale.
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self aligning concave relativistic plasma mirror with adjustable focus
arXiv: Plasma Physics, 2016Co-Authors: Haien Tsai, Alexey Arefiev, Joseph M Shaw, David J Stark, Xiaoming Wang, Rafal Zgadzaj, M C DownerAbstract:We report an experimental-computational study of the optical properties of plasma mirrors (PMs) at the incident laser frequency when irradiated directly at relativistic intensity (1e18 < I_0 < 1e19 W/cm^2) by near-normally incident (4 degree), high-contrast, 30 fs, 800 nm laser pulses. We find that such relativistic PMs are highly reflective (0.6 to 0.8), and focus a significant fraction of reflected light to intensity as large as 10I_0 at distance f as small 25 microns from the PM, provided that pre-pulses do not exceed 1e14 W/cm^2 prior to 20 ps before arrival of the main pulse peak. Particle-in-cell simulations show that focusing results from denting of the reflecting surface by light pressure combined with relativistic transparency, and that reflectivity and f can be adjusted by controlling pre-plasma length L over the range 0.5 < L < 3 microns. Pump-probe reflectivity measurements show the PM's focusing properties evolve on a ps time scale.
Haien Tsai - One of the best experts on this subject based on the ideXlab platform.
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self aligning concave relativistic plasma mirror with adjustable focus
Physics of Plasmas, 2017Co-Authors: Haien Tsai, Alexey Arefiev, Joseph M Shaw, David J Stark, Xiaoming Wang, Rafal Zgadzaj, M C DownerAbstract:We report an experimental-computational study of the optical properties of plasma mirrors (PMs) at the incident laser frequency when irradiated directly at relativistic intensity ( 10 18 < I 0 < 10 19 W / cm 2 ) by near-normally incident ( 4 ° ), high-contrast, 30 fs, 800 nm laser pulses. We find that such relativistic PMs are highly reflective ( 0.6 – 0.8 ) and focus a significant fraction of reflected light to intensity as large as ∼ 10 I 0 at distance f as small as ∼ 25 μ m from the PM, provided that pre-pulses do not exceed 1014 W/cm2 prior to ∼ 20 ps before arrival of the main pulse peak. Particle-in-cell simulations show that focusing results from denting of the reflecting surface by light pressure combined with relativistic transparency and that reflectivity and f can be adjusted by controlling pre-plasma length L over the range 0.5 ≲ L ≲ 3 μ m. Pump-probe reflectivity measurements show that the PM's focusing properties evolve on a ps time scale.
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self aligning concave relativistic plasma mirror with adjustable focus
arXiv: Plasma Physics, 2016Co-Authors: Haien Tsai, Alexey Arefiev, Joseph M Shaw, David J Stark, Xiaoming Wang, Rafal Zgadzaj, M C DownerAbstract:We report an experimental-computational study of the optical properties of plasma mirrors (PMs) at the incident laser frequency when irradiated directly at relativistic intensity (1e18 < I_0 < 1e19 W/cm^2) by near-normally incident (4 degree), high-contrast, 30 fs, 800 nm laser pulses. We find that such relativistic PMs are highly reflective (0.6 to 0.8), and focus a significant fraction of reflected light to intensity as large as 10I_0 at distance f as small 25 microns from the PM, provided that pre-pulses do not exceed 1e14 W/cm^2 prior to 20 ps before arrival of the main pulse peak. Particle-in-cell simulations show that focusing results from denting of the reflecting surface by light pressure combined with relativistic transparency, and that reflectivity and f can be adjusted by controlling pre-plasma length L over the range 0.5 < L < 3 microns. Pump-probe reflectivity measurements show the PM's focusing properties evolve on a ps time scale.
Karthik Namasivayam - One of the best experts on this subject based on the ideXlab platform.
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the relationship of chronic regulatory focus to work family conflict and job satisfaction
International Journal of Hospitality Management, 2012Co-Authors: Xinyuan Zhao, Karthik NamasivayamAbstract:Abstract The results of a field study examining the moderating role of chronic self-regulatory focus on the relationships between work–family conflict (WFC) and job satisfaction are reported here. Data from 284 hotel employees were analyzed using hierarchical regression with follow-up simple slope analyses. Results show that self-regulatory processes moderate the relationships between WFC and job satisfaction. When work interfered with family obligations, individuals reporting higher levels of chronic promotion focus were less satisfied with their jobs. On the contrary, when their family roles interfered with work tasks employees with higher levels of chronic prevention focus were less satisfied with their jobs.
Alexey Arefiev - One of the best experts on this subject based on the ideXlab platform.
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self aligning concave relativistic plasma mirror with adjustable focus
Physics of Plasmas, 2017Co-Authors: Haien Tsai, Alexey Arefiev, Joseph M Shaw, David J Stark, Xiaoming Wang, Rafal Zgadzaj, M C DownerAbstract:We report an experimental-computational study of the optical properties of plasma mirrors (PMs) at the incident laser frequency when irradiated directly at relativistic intensity ( 10 18 < I 0 < 10 19 W / cm 2 ) by near-normally incident ( 4 ° ), high-contrast, 30 fs, 800 nm laser pulses. We find that such relativistic PMs are highly reflective ( 0.6 – 0.8 ) and focus a significant fraction of reflected light to intensity as large as ∼ 10 I 0 at distance f as small as ∼ 25 μ m from the PM, provided that pre-pulses do not exceed 1014 W/cm2 prior to ∼ 20 ps before arrival of the main pulse peak. Particle-in-cell simulations show that focusing results from denting of the reflecting surface by light pressure combined with relativistic transparency and that reflectivity and f can be adjusted by controlling pre-plasma length L over the range 0.5 ≲ L ≲ 3 μ m. Pump-probe reflectivity measurements show that the PM's focusing properties evolve on a ps time scale.
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self aligning concave relativistic plasma mirror with adjustable focus
arXiv: Plasma Physics, 2016Co-Authors: Haien Tsai, Alexey Arefiev, Joseph M Shaw, David J Stark, Xiaoming Wang, Rafal Zgadzaj, M C DownerAbstract:We report an experimental-computational study of the optical properties of plasma mirrors (PMs) at the incident laser frequency when irradiated directly at relativistic intensity (1e18 < I_0 < 1e19 W/cm^2) by near-normally incident (4 degree), high-contrast, 30 fs, 800 nm laser pulses. We find that such relativistic PMs are highly reflective (0.6 to 0.8), and focus a significant fraction of reflected light to intensity as large as 10I_0 at distance f as small 25 microns from the PM, provided that pre-pulses do not exceed 1e14 W/cm^2 prior to 20 ps before arrival of the main pulse peak. Particle-in-cell simulations show that focusing results from denting of the reflecting surface by light pressure combined with relativistic transparency, and that reflectivity and f can be adjusted by controlling pre-plasma length L over the range 0.5 < L < 3 microns. Pump-probe reflectivity measurements show the PM's focusing properties evolve on a ps time scale.
Rafal Zgadzaj - One of the best experts on this subject based on the ideXlab platform.
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self aligning concave relativistic plasma mirror with adjustable focus
Physics of Plasmas, 2017Co-Authors: Haien Tsai, Alexey Arefiev, Joseph M Shaw, David J Stark, Xiaoming Wang, Rafal Zgadzaj, M C DownerAbstract:We report an experimental-computational study of the optical properties of plasma mirrors (PMs) at the incident laser frequency when irradiated directly at relativistic intensity ( 10 18 < I 0 < 10 19 W / cm 2 ) by near-normally incident ( 4 ° ), high-contrast, 30 fs, 800 nm laser pulses. We find that such relativistic PMs are highly reflective ( 0.6 – 0.8 ) and focus a significant fraction of reflected light to intensity as large as ∼ 10 I 0 at distance f as small as ∼ 25 μ m from the PM, provided that pre-pulses do not exceed 1014 W/cm2 prior to ∼ 20 ps before arrival of the main pulse peak. Particle-in-cell simulations show that focusing results from denting of the reflecting surface by light pressure combined with relativistic transparency and that reflectivity and f can be adjusted by controlling pre-plasma length L over the range 0.5 ≲ L ≲ 3 μ m. Pump-probe reflectivity measurements show that the PM's focusing properties evolve on a ps time scale.
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self aligning concave relativistic plasma mirror with adjustable focus
arXiv: Plasma Physics, 2016Co-Authors: Haien Tsai, Alexey Arefiev, Joseph M Shaw, David J Stark, Xiaoming Wang, Rafal Zgadzaj, M C DownerAbstract:We report an experimental-computational study of the optical properties of plasma mirrors (PMs) at the incident laser frequency when irradiated directly at relativistic intensity (1e18 < I_0 < 1e19 W/cm^2) by near-normally incident (4 degree), high-contrast, 30 fs, 800 nm laser pulses. We find that such relativistic PMs are highly reflective (0.6 to 0.8), and focus a significant fraction of reflected light to intensity as large as 10I_0 at distance f as small 25 microns from the PM, provided that pre-pulses do not exceed 1e14 W/cm^2 prior to 20 ps before arrival of the main pulse peak. Particle-in-cell simulations show that focusing results from denting of the reflecting surface by light pressure combined with relativistic transparency, and that reflectivity and f can be adjusted by controlling pre-plasma length L over the range 0.5 < L < 3 microns. Pump-probe reflectivity measurements show the PM's focusing properties evolve on a ps time scale.
