Zobrazeno 1 - 10
of 133
pro vyhledávání: '"Hua, J F"'
Autor:
Wu, Y. P., Hua, J. F., Zhou, Z., Zhang, J., Liu, S., Peng, B., Fang, Y., Nie, Z., Ning, X. N., Pai, C. H., Du, Y. C., Lu, W., Zhang, C. J., Mori, W. B., Joshi, C.
Plasma-based accelerators have made impressive progress in recent years. However, the beam energy spread obtained in these accelerators is still at ~ 1 % level, nearly one order of magnitude larger than what is needed for challenging applications lik
Externí odkaz:
http://arxiv.org/abs/1904.11192
Autor:
Wan, Y., Andriyash, I. A., Hua, J. F., Pai, C. -H., Lu, W., Mori, W. B., Joshi, C., Malka, V.
Publikováno v:
Phys. Rev. Accel. Beams 22, 021301 (2019)
A new scheme of proton acceleration from a laser-driven near-critical-density plasma is proposed. Plasma with a tailored density profile allows a two-stage acceleration of protons. The protons are pre-accelerated in the laser-driven wakefields, and a
Externí odkaz:
http://arxiv.org/abs/1809.07531
Autor:
Wu, Y. P., Hua, J. F., Pai, C. H., An, W., Xu, X. L., Zhang, C. J., Li, F., Wan, Y., Nie, Z., Zhou, Z., Zhang, J., Liu, S., Zhou, S. Y., Peng, B., Fang, Y., Lu, W., Mori, W. B., Joshi, C.
Publikováno v:
Phys. Rev. Applied 12, 064011 (2019)
Plasma-based electron and positron wakefield acceleration has made great strides in the past decade. However one major challenge for its applications to coherent light sources and colliders is the relatively large energy spread of the accelerated bea
Externí odkaz:
http://arxiv.org/abs/1805.07031
Publikováno v:
Phys. Rev. Accel. Beams 21, 112801 (2018)
Femtosecond electron bunches with complex temporal structures play a crucial role in THz generation, free-electron lasers and plasma wakefield accelerators. The ultrashort electron pulse duration can be reconstructed from the coherent transition radi
Externí odkaz:
http://arxiv.org/abs/1801.07109
Autor:
Wan, Y., Andriyash, I. A., Pai, C. -H., Hua, J. F., Zhang, C. J., Li, F., Wu, Y. P., Nie, Z., Mori, W. B., Lu, W., Malka, V., Joshi, C.
Ultra-intense lasers produce and manipulate plasmas, allowing to locally generate extremely high static and electromagnetic fields. This Letter presents a concept of an ultra-intense optical tweezer, where two counter-propagating circularly polarized
Externí odkaz:
http://arxiv.org/abs/1707.07290
Autor:
Zhang, C. J., Hua, J. F., Xu, X. L., Li, F., Pai, C. -H., Wan, Y., Wu, Y. P., Gu, Y. Q., Mori, W. B., Joshi, C., Lu, W.
Publikováno v:
Scientific Reports 6, 29485 (2016)
A new method capable of capturing coherent electric field structures propagating at nearly the speed of light in plasma with a time resolution as small as a few femtoseconds is proposed. This method uses a few femtoseconds long relativistic electron
Externí odkaz:
http://arxiv.org/abs/1610.05602
Autor:
Zhang, C. J., Hua, J. F., Wan, Y., Guo, B., Wu, Y. P., Pai, C. -H., Li, F., Chu, H. -H., Gu, Y. Q., Xu, X. L., Mori, W. B., Joshi, C., Wang, J., Lu, W.
Relativistic wakes produced by intense laser or particle beams propagating through plasmas are being considered as accelerators for next generation of colliders and coherent light sources. Such wakes have been shown to accelerate electrons and positr
Externí odkaz:
http://arxiv.org/abs/1610.05595
Autor:
Wan, Y., Pai, C. -H., Zhang, C. J., Li, F., Wu, Y. P., Hua, J. F., Lu, W., Gu, Y. Q., Silva, L. O., Joshi, C., Mori, W. B.
Publikováno v:
Phys. Rev. Lett. 117, 234801 (2016)
The transverse stability of the target is crucial for obtaining high quality ion beams using the laser radiation pressure acceleration (RPA) mechanism. In this letter, a theoretical model and supporting two-dimensional (2D) Particle-in-Cell (PIC) sim
Externí odkaz:
http://arxiv.org/abs/1603.09160
Autor:
Zhang, C. J., Hua, J. F., Wan, Y., Guo, B., Pai, C. -H., Wu, Y. P., Li, F., Chu, H. -H., Gu, Y. Q., Mori, W. B., Joshi, C., Wang, J., Lu, W.
Publikováno v:
Phys. Rev. ST Accel. Beams 19, 062802 (2016)
A new method for diagnosing the temporal characteristics of ultrashort electron bunches with linear energy chirp generated from a laser wakefield accelerator is described. When the ionization-injected bunch interacts with the back of the drive laser,
Externí odkaz:
http://arxiv.org/abs/1601.04813
Autor:
Xu, X. L., Zhang, C. J., Li, F., Wan, Y., Wu, Y. P., Hua, J. F., Pai, C. -H., Lu, W., An, W., Yu, P., Mori, W. B., Joshi, C.
Publikováno v:
Phys. Rev. Lett. 117, 034801 (2016)
Ionization injection is attractive as a controllable injection scheme for generating high quality electron beams using plasma-based wakefield acceleration. Due to the phase dependent tunneling ionization rate and the trapping dynamics within a nonlin
Externí odkaz:
http://arxiv.org/abs/1510.01445