@misc{oai:repo.qst.go.jp:00073104,
 author = {Gonzalez, izquierdo Bruno and A, Pikuz T and Sagisaka, Akito and E, Davidson Z and Ogura, Koichi and Bierwage, Andreas and HUANG, KAI and Timur, Esirkepov and Kevin, Koga James and Ya, Lopatin A and Fukuda, Yuuji and Ishino, Masahiko and N, Ragozin E and A, Pikuz S and I, Chkhalo N and N, Salashchenko N and Neely, D and McKenna, P and Kiriyama, Hiromitsu and Kando, Masaki and Pirozhkov, Alexander and ゴンザレスイスケルド ブルーノ and 匂坂 明人 and 小倉 浩一 and ビアワーゲ アンドレアス and 黄 開 and エシロケポフ ティムル and コーガ ジェームズ and 福田 祐仁 and 石野 雅彦 and 桐山 博光 and 神門 正城 and ピロジコフ アレキサンダー},
 month = {Nov},
 note = {In the last two decades the regime of ultraintense (>1019 Wcm-2) laser pulses producing and interacting with plasma has revealed unprecedented advancements in particle acceleration and as a secondary source of high-energy radiation beams. 
Previous experiments, developed in our group, have discovered coherent x-ray beams with high brightness (approaching that of FELs1) and composed of multiple high order harmonics2,3. The following experiments and simulations have shown that the produced x-ray sources are from tens to hundreds of nanometers in size. This novel phenomenon is known as BISER4. 
Here, we report new experimental results concerning spatial distribution of these promising x-ray sources, which will enable a more rigorous understanding of the underpinning physics of its origin and the effect of specific laser parameters on its spatial pattern and brightness. Additionally, a potential alternative technique to measure their spatial distribution with a few hundred nanometers resolution is presented, which will enable both, the estimation of the source size and its brightness.
[1] C. Pellegrini and J. Stohr, Nucl. Instrum. Meth. A, 500, 33-40, 2003.
[2] A. S. Pirozhkov et al., Physical Review Letters, 108, 135004, 2012.
[3] A. S. Pirozhkov et al., New Journal of Physics, 16, 093003, 2014.
[4] A. S. Pirozhkov, T. Esirkepov et al., Scientific Reports, 7, 17968, 2017., 第2回QST国際シンポジウムに参加},
 title = {BISER X-ray structures in ultraintense laser-plasma interactions},
 year = {2018}
}