The Experts below are selected from a list of 264 Experts worldwide ranked by ideXlab platform
Tae Moon Jeong - One of the best experts on this subject based on the ideXlab platform.
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transition of Proton Energy scaling using an ultrathin target irradiated by linearly polarized femtosecond laser pulses
Physical Review Letters, 2013Co-Authors: Jae Hee Sung, Il Woo Choi, Tae Jun Yu, Peter V Nickles, Tae Moon JeongAbstract:Particle acceleration using ultraintense, ultrashort laser pulses is one of the most attractive topics in relativistic laser-plasma research. We report Proton/ion acceleration in the intensity range of 5x1019 W/cm2 to 3.3x1020 W/cm2 by irradiating linearly polarized, 30-fs, 1-PW laser pulses on 10- to 100-nm-thick polymer targets. The Proton Energy scaling with respect to the intensity and target thickness was examined. The experiments demonstrated, for the first time with linearly polarized light, a transition from the target normal sheath acceleration to radiation pressure acceleration and showed a maximum Proton Energy of 45 MeV when a 10-nm-thick target was irradiated by a laser intensity of 3.3x1020 W/cm2. The experimental results were further supported by two- and three-dimensional particle-in-cell simulations. Based on the deduced Proton Energy scaling, Proton beams having an Energy of ~ 200 MeV should be feasible at a laser intensity of 1.5x1021 W/cm2.
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transition of Proton Energy scaling using an ultrathin target irradiated by linearly polarized femtosecond laser pulses
Physical Review Letters, 2013Co-Authors: Jae Hee Sung, Il Woo Choi, Tae Jun Yu, Peter V Nickles, Tae Moon JeongAbstract:: Particle acceleration using ultraintense, ultrashort laser pulses is one of the most attractive topics in relativistic laser-plasma research. We report Proton and/or ion acceleration in the intensity range of 5×10(19) to 3.3×10(20) W/cm2 by irradiating linearly polarized, 30-fs laser pulses on 10-to 100-nm-thick polymer targets. The Proton Energy scaling with respect to the intensity and target thickness is examined, and a maximum Proton Energy of 45 MeV is obtained when a 10-nm-thick target is irradiated by a laser intensity of 3.3×10(20) W/cm2. The Proton acceleration is explained by a hybrid acceleration mechanism including target normal sheath acceleration, radiation pressure acceleration, and Coulomb explosion assisted-free expansion. The transition of Proton Energy scaling from I(1/2) to I is observed as a consequence of the hybrid acceleration mechanism. The experimental results are supported by two- and three-dimensional particle-in-cell simulations.
Jae Hee Sung - One of the best experts on this subject based on the ideXlab platform.
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Fast scaling of energetic Protons generated in the interaction of linearly polarized femtosecond petawatt laser pulses with ultrathin targets
High Energy Density Physics, 2015Co-Authors: I. Jong Kim, CHUL MIN KIM, Ki Hong Pae, Himanshu Singhal, Jae Hee Sung, Seong Ku Lee, Chang Lyoul Lee, Hyung Taek Kim, Il Woo Choi, Hwang Woon LeeAbstract:Laser-driven Proton/ion acceleration is a rapidly developing research field attractive for both fundamental physics and applications such as hadron therapy, radiography, inertial confinement fusion, and nuclear/particle physics. Laser-driven Proton/ion beams, compared to those obtained in conventional accelerators, have outstanding features such as low emittance, small source size, ultra-short duration and huge acceleration gradient of ~1 MeV μm-1. We report Proton acceleration from ultrathin polymer targets irradiated with linearly polarized, 30-fs, 1-PW Ti:sapphire laser pulses. A maximum Proton Energy of 45 MeV with a broad and modulated profile was obtained when a 10-nm-thick target was irradiated at a laser intensity of 3.3 × 1020 W/cm2. The transition from slow (I1/2) to fast scaling (I) of maximum Proton Energy with respect to laser intensity I was observed and explained by the hybrid acceleration mechanism including target normal sheath acceleration and radiation pressure acceleration in the acceleration stage and Coulomb-explosion-assisted free expansion in the post acceleration stage.
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transition of Proton Energy scaling using an ultrathin target irradiated by linearly polarized femtosecond laser pulses
Physical Review Letters, 2013Co-Authors: Jae Hee Sung, Il Woo Choi, Tae Jun Yu, Peter V Nickles, Tae Moon JeongAbstract:Particle acceleration using ultraintense, ultrashort laser pulses is one of the most attractive topics in relativistic laser-plasma research. We report Proton/ion acceleration in the intensity range of 5x1019 W/cm2 to 3.3x1020 W/cm2 by irradiating linearly polarized, 30-fs, 1-PW laser pulses on 10- to 100-nm-thick polymer targets. The Proton Energy scaling with respect to the intensity and target thickness was examined. The experiments demonstrated, for the first time with linearly polarized light, a transition from the target normal sheath acceleration to radiation pressure acceleration and showed a maximum Proton Energy of 45 MeV when a 10-nm-thick target was irradiated by a laser intensity of 3.3x1020 W/cm2. The experimental results were further supported by two- and three-dimensional particle-in-cell simulations. Based on the deduced Proton Energy scaling, Proton beams having an Energy of ~ 200 MeV should be feasible at a laser intensity of 1.5x1021 W/cm2.
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transition of Proton Energy scaling using an ultrathin target irradiated by linearly polarized femtosecond laser pulses
Physical Review Letters, 2013Co-Authors: Jae Hee Sung, Il Woo Choi, Tae Jun Yu, Peter V Nickles, Tae Moon JeongAbstract:: Particle acceleration using ultraintense, ultrashort laser pulses is one of the most attractive topics in relativistic laser-plasma research. We report Proton and/or ion acceleration in the intensity range of 5×10(19) to 3.3×10(20) W/cm2 by irradiating linearly polarized, 30-fs laser pulses on 10-to 100-nm-thick polymer targets. The Proton Energy scaling with respect to the intensity and target thickness is examined, and a maximum Proton Energy of 45 MeV is obtained when a 10-nm-thick target is irradiated by a laser intensity of 3.3×10(20) W/cm2. The Proton acceleration is explained by a hybrid acceleration mechanism including target normal sheath acceleration, radiation pressure acceleration, and Coulomb explosion assisted-free expansion. The transition of Proton Energy scaling from I(1/2) to I is observed as a consequence of the hybrid acceleration mechanism. The experimental results are supported by two- and three-dimensional particle-in-cell simulations.
Il Woo Choi - One of the best experts on this subject based on the ideXlab platform.
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Fast scaling of energetic Protons generated in the interaction of linearly polarized femtosecond petawatt laser pulses with ultrathin targets
High Energy Density Physics, 2015Co-Authors: I. Jong Kim, CHUL MIN KIM, Ki Hong Pae, Himanshu Singhal, Jae Hee Sung, Seong Ku Lee, Chang Lyoul Lee, Hyung Taek Kim, Il Woo Choi, Hwang Woon LeeAbstract:Laser-driven Proton/ion acceleration is a rapidly developing research field attractive for both fundamental physics and applications such as hadron therapy, radiography, inertial confinement fusion, and nuclear/particle physics. Laser-driven Proton/ion beams, compared to those obtained in conventional accelerators, have outstanding features such as low emittance, small source size, ultra-short duration and huge acceleration gradient of ~1 MeV μm-1. We report Proton acceleration from ultrathin polymer targets irradiated with linearly polarized, 30-fs, 1-PW Ti:sapphire laser pulses. A maximum Proton Energy of 45 MeV with a broad and modulated profile was obtained when a 10-nm-thick target was irradiated at a laser intensity of 3.3 × 1020 W/cm2. The transition from slow (I1/2) to fast scaling (I) of maximum Proton Energy with respect to laser intensity I was observed and explained by the hybrid acceleration mechanism including target normal sheath acceleration and radiation pressure acceleration in the acceleration stage and Coulomb-explosion-assisted free expansion in the post acceleration stage.
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transition of Proton Energy scaling using an ultrathin target irradiated by linearly polarized femtosecond laser pulses
Physical Review Letters, 2013Co-Authors: Jae Hee Sung, Il Woo Choi, Tae Jun Yu, Peter V Nickles, Tae Moon JeongAbstract:Particle acceleration using ultraintense, ultrashort laser pulses is one of the most attractive topics in relativistic laser-plasma research. We report Proton/ion acceleration in the intensity range of 5x1019 W/cm2 to 3.3x1020 W/cm2 by irradiating linearly polarized, 30-fs, 1-PW laser pulses on 10- to 100-nm-thick polymer targets. The Proton Energy scaling with respect to the intensity and target thickness was examined. The experiments demonstrated, for the first time with linearly polarized light, a transition from the target normal sheath acceleration to radiation pressure acceleration and showed a maximum Proton Energy of 45 MeV when a 10-nm-thick target was irradiated by a laser intensity of 3.3x1020 W/cm2. The experimental results were further supported by two- and three-dimensional particle-in-cell simulations. Based on the deduced Proton Energy scaling, Proton beams having an Energy of ~ 200 MeV should be feasible at a laser intensity of 1.5x1021 W/cm2.
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transition of Proton Energy scaling using an ultrathin target irradiated by linearly polarized femtosecond laser pulses
Physical Review Letters, 2013Co-Authors: Jae Hee Sung, Il Woo Choi, Tae Jun Yu, Peter V Nickles, Tae Moon JeongAbstract:: Particle acceleration using ultraintense, ultrashort laser pulses is one of the most attractive topics in relativistic laser-plasma research. We report Proton and/or ion acceleration in the intensity range of 5×10(19) to 3.3×10(20) W/cm2 by irradiating linearly polarized, 30-fs laser pulses on 10-to 100-nm-thick polymer targets. The Proton Energy scaling with respect to the intensity and target thickness is examined, and a maximum Proton Energy of 45 MeV is obtained when a 10-nm-thick target is irradiated by a laser intensity of 3.3×10(20) W/cm2. The Proton acceleration is explained by a hybrid acceleration mechanism including target normal sheath acceleration, radiation pressure acceleration, and Coulomb explosion assisted-free expansion. The transition of Proton Energy scaling from I(1/2) to I is observed as a consequence of the hybrid acceleration mechanism. The experimental results are supported by two- and three-dimensional particle-in-cell simulations.
Peter V Nickles - One of the best experts on this subject based on the ideXlab platform.
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transition of Proton Energy scaling using an ultrathin target irradiated by linearly polarized femtosecond laser pulses
Physical Review Letters, 2013Co-Authors: Jae Hee Sung, Il Woo Choi, Tae Jun Yu, Peter V Nickles, Tae Moon JeongAbstract:Particle acceleration using ultraintense, ultrashort laser pulses is one of the most attractive topics in relativistic laser-plasma research. We report Proton/ion acceleration in the intensity range of 5x1019 W/cm2 to 3.3x1020 W/cm2 by irradiating linearly polarized, 30-fs, 1-PW laser pulses on 10- to 100-nm-thick polymer targets. The Proton Energy scaling with respect to the intensity and target thickness was examined. The experiments demonstrated, for the first time with linearly polarized light, a transition from the target normal sheath acceleration to radiation pressure acceleration and showed a maximum Proton Energy of 45 MeV when a 10-nm-thick target was irradiated by a laser intensity of 3.3x1020 W/cm2. The experimental results were further supported by two- and three-dimensional particle-in-cell simulations. Based on the deduced Proton Energy scaling, Proton beams having an Energy of ~ 200 MeV should be feasible at a laser intensity of 1.5x1021 W/cm2.
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transition of Proton Energy scaling using an ultrathin target irradiated by linearly polarized femtosecond laser pulses
Physical Review Letters, 2013Co-Authors: Jae Hee Sung, Il Woo Choi, Tae Jun Yu, Peter V Nickles, Tae Moon JeongAbstract:: Particle acceleration using ultraintense, ultrashort laser pulses is one of the most attractive topics in relativistic laser-plasma research. We report Proton and/or ion acceleration in the intensity range of 5×10(19) to 3.3×10(20) W/cm2 by irradiating linearly polarized, 30-fs laser pulses on 10-to 100-nm-thick polymer targets. The Proton Energy scaling with respect to the intensity and target thickness is examined, and a maximum Proton Energy of 45 MeV is obtained when a 10-nm-thick target is irradiated by a laser intensity of 3.3×10(20) W/cm2. The Proton acceleration is explained by a hybrid acceleration mechanism including target normal sheath acceleration, radiation pressure acceleration, and Coulomb explosion assisted-free expansion. The transition of Proton Energy scaling from I(1/2) to I is observed as a consequence of the hybrid acceleration mechanism. The experimental results are supported by two- and three-dimensional particle-in-cell simulations.
Tae Jun Yu - One of the best experts on this subject based on the ideXlab platform.
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transition of Proton Energy scaling using an ultrathin target irradiated by linearly polarized femtosecond laser pulses
Physical Review Letters, 2013Co-Authors: Jae Hee Sung, Il Woo Choi, Tae Jun Yu, Peter V Nickles, Tae Moon JeongAbstract:Particle acceleration using ultraintense, ultrashort laser pulses is one of the most attractive topics in relativistic laser-plasma research. We report Proton/ion acceleration in the intensity range of 5x1019 W/cm2 to 3.3x1020 W/cm2 by irradiating linearly polarized, 30-fs, 1-PW laser pulses on 10- to 100-nm-thick polymer targets. The Proton Energy scaling with respect to the intensity and target thickness was examined. The experiments demonstrated, for the first time with linearly polarized light, a transition from the target normal sheath acceleration to radiation pressure acceleration and showed a maximum Proton Energy of 45 MeV when a 10-nm-thick target was irradiated by a laser intensity of 3.3x1020 W/cm2. The experimental results were further supported by two- and three-dimensional particle-in-cell simulations. Based on the deduced Proton Energy scaling, Proton beams having an Energy of ~ 200 MeV should be feasible at a laser intensity of 1.5x1021 W/cm2.
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transition of Proton Energy scaling using an ultrathin target irradiated by linearly polarized femtosecond laser pulses
Physical Review Letters, 2013Co-Authors: Jae Hee Sung, Il Woo Choi, Tae Jun Yu, Peter V Nickles, Tae Moon JeongAbstract:: Particle acceleration using ultraintense, ultrashort laser pulses is one of the most attractive topics in relativistic laser-plasma research. We report Proton and/or ion acceleration in the intensity range of 5×10(19) to 3.3×10(20) W/cm2 by irradiating linearly polarized, 30-fs laser pulses on 10-to 100-nm-thick polymer targets. The Proton Energy scaling with respect to the intensity and target thickness is examined, and a maximum Proton Energy of 45 MeV is obtained when a 10-nm-thick target is irradiated by a laser intensity of 3.3×10(20) W/cm2. The Proton acceleration is explained by a hybrid acceleration mechanism including target normal sheath acceleration, radiation pressure acceleration, and Coulomb explosion assisted-free expansion. The transition of Proton Energy scaling from I(1/2) to I is observed as a consequence of the hybrid acceleration mechanism. The experimental results are supported by two- and three-dimensional particle-in-cell simulations.
