TY - GEN
T1 - Optimized soft x-ray amplifier by tailoring plasma hydrodynamics
AU - Oliva, E.
AU - Zeitoun, Ph
AU - Fajardo, M.
AU - Velarde, P.
AU - Cassou, K.
AU - Ros, D.
AU - Sebban, S.
PY - 2009/1/1
Y1 - 2009/1/1
N2 - Plasma-based seeded soft x-ray lasers have the potential to generate high-energy, highly coherent, short pulse beam. Due to their high density, plasmas created by interaction of intense laser with solid target should store the highest amount of energy density among all plasma amplifiers. However, to-date output energy from seeded solid amplifiers remains as low as 60 nJ. We demonstrated that careful tailoring of the plasma shape is crucial for extracting energy stored in the plasma. With 1 mm wide plasma, energy as high as 22 μJ in sub-ps pulse is achievable. With such tailored plasma, gain and pumping efficiency has been increased by nearly a factor of 10 as compared to the narrower plasma amplifiers studied previously and here.
AB - Plasma-based seeded soft x-ray lasers have the potential to generate high-energy, highly coherent, short pulse beam. Due to their high density, plasmas created by interaction of intense laser with solid target should store the highest amount of energy density among all plasma amplifiers. However, to-date output energy from seeded solid amplifiers remains as low as 60 nJ. We demonstrated that careful tailoring of the plasma shape is crucial for extracting energy stored in the plasma. With 1 mm wide plasma, energy as high as 22 μJ in sub-ps pulse is achievable. With such tailored plasma, gain and pumping efficiency has been increased by nearly a factor of 10 as compared to the narrower plasma amplifiers studied previously and here.
KW - Adaptive mesh refinement
KW - CFD
KW - Plasma amplifiers
KW - Seeded soft x-ray lasers
KW - Transient collisional excitation
UR - https://www.scopus.com/pages/publications/70450237367
U2 - 10.1117/12.833063
DO - 10.1117/12.833063
M3 - Conference contribution
AN - SCOPUS:70450237367
SN - 9780819477415
T3 - Proceedings of SPIE - The International Society for Optical Engineering
BT - Soft X-Ray Lasers and Applications VIII
PB - SPIE
T2 - Soft X-Ray Lasers and Applications VIII
Y2 - 4 August 2009 through 6 August 2009
ER -