A compact free-electron laser for generating coherent radiation in the extreme ultraviolet region Export

@article{citeulike:3182527, abstract = {Single-pass free-electron lasers based on self-amplified spontaneous emission1, 2, 3, 4 are enabling the generation of laser light at ever shorter wavelengths, including extreme ultraviolet5, soft X-rays and even hard X-rays6, 7, 8. A typical X-ray free-electron laser is a few kilometres in length and requires an electron-beam energy higher than 10 GeV (refs 6, 8). If such light sources are to become accessible to more researchers, a significant reduction in scale is desirable Here, we report observations of brilliant extreme-ultraviolet radiation from a 55-m-long compact self-amplified spontaneous-emission source, which combines short-period undulators with a high-quality electron source operating at a low acceleration energy of 250 MeV. The radiation power reaches saturation at wavelengths ranging from 51 to 61 nm with a maximum pulse energy of 30 microJ. The ultralow emittance (0.6pi mm mrad) of the electron beam from a CeB6 thermionic cathode9 is barely degraded by a multiple-stage bunch compression system that dramatically enhances the beam current from 1 to 300 A. This achievement expands the potential for generating X-ray free-electron laser radiation with a compact 2-GeV machine.}, author = {Shintake, Tsumoru and Tanaka, Hitoshi and Hara, Toru and Tanaka, Takashi and Togawa, Kazuaki and Yabashi, Makina and Otake, Yuji and Asano, Yoshihiro and Bizen, Teruhiko and Fukui, Toru and Goto, Shunji and Higashiya, Atsushi and Hirono, Toko and Hosoda, Naoyasu and Inagaki, Takahiro and Inoue, Shinobu and Ishii, Miho and Kim, Yujong and Kimura, Hiroaki and Kitamura, Masanobu and Kobayashi, Toshiaki and Maesaka, Hirokazu and Masuda, Takemasa and Matsui, Sakuo and Matsushita, Tomohiro and Marechal, Xavier and Nagasono, Mitsuru and Ohashi, Haruhiko and Ohata, Toru and Ohshima, Takashi and Onoe, Kazuyuki and Shirasawa, Katsutoshi and Takagi, Tetsuya and Takahashi, Sunao and Takeuchi, Masao and Tamasaku, Kenji and Tanaka, Ryotaro and Tanaka, Yoshihito and Tanikawa, Takanori and Togashi, Tadashi and Wu, Shukui and Yamashita, Akihiro and Yanagida, Kenichi and Zhang, Chao and Kitamura, Hideo and Ishikawa, Tetsuya}, citeulike-article-id = {3182527}, citeulike-linkout-0 = {http://dx.doi.org/10.1038/nphoton.2008.134}, citeulike-linkout-1 = {http://dx.doi.org/10.1038/nphoton.2008.134}, day = {27}, doi = {10.1038/nphoton.2008.134}, issn = {1749-4885}, journal = {Nature Photonics}, keywords = {coherent-radiation, euv, extreme-ultraviolet, free-electron-laser}, month = {July}, number = {9}, pages = {555--559}, posted-at = {2008-09-23 17:16:11}, priority = {2}, publisher = {Nature Publishing Group}, title = {A compact free-electron laser for generating coherent radiation in the extreme ultraviolet region}, url = {http://dx.doi.org/10.1038/nphoton.2008.134}, volume = {2}, year = {2008} }

TY - JOUR ID - citeulike:3182527 L3 - citeulike-article-id:3182527 N2 - Single-pass free-electron lasers based on self-amplified spontaneous emission1, 2, 3, 4 are enabling the generation of laser light at ever shorter wavelengths, including extreme ultraviolet5, soft X-rays and even hard X-rays6, 7, 8. A typical X-ray free-electron laser is a few kilometres in length and requires an electron-beam energy higher than 10 GeV (refs 6, 8). If such light sources are to become accessible to more researchers, a significant reduction in scale is desirable Here, we report observations of brilliant extreme-ultraviolet radiation from a 55-m-long compact self-amplified spontaneous-emission source, which combines short-period undulators with a high-quality electron source operating at a low acceleration energy of 250 MeV. The radiation power reaches saturation at wavelengths ranging from 51 to 61 nm with a maximum pulse energy of 30 microJ. The ultralow emittance (0.6pi mm mrad) of the electron beam from a CeB6 thermionic cathode9 is barely degraded by a multiple-stage bunch compression system that dramatically enhances the beam current from 1 to 300 A. This achievement expands the potential for generating X-ray free-electron laser radiation with a compact 2-GeV machine. IS - 9 JF - Nature Photonics SN - 1749-4885 EP - 559 TI - A compact free-electron laser for generating coherent radiation in the extreme ultraviolet region PB - Nature Publishing Group VL - 2 SP - 555 KW - coherent-radiation KW - euv KW - extreme-ultraviolet KW - free-electron-laser AU - Shintake, Tsumoru AU - Tanaka, Hitoshi AU - Hara, Toru AU - Tanaka, Takashi AU - Togawa, Kazuaki AU - Yabashi, Makina AU - Otake, Yuji AU - Asano, Yoshihiro AU - Bizen, Teruhiko AU - Fukui, Toru AU - Goto, Shunji AU - Higashiya, Atsushi AU - Hirono, Toko AU - Hosoda, Naoyasu AU - Inagaki, Takahiro AU - Inoue, Shinobu AU - Ishii, Miho AU - Kim, Yujong AU - Kimura, Hiroaki AU - Kitamura, Masanobu AU - Kobayashi, Toshiaki AU - Maesaka, Hirokazu AU - Masuda, Takemasa AU - Matsui, Sakuo AU - Matsushita, Tomohiro AU - Marechal, Xavier AU - Nagasono, Mitsuru AU - Ohashi, Haruhiko AU - Ohata, Toru AU - Ohshima, Takashi AU - Onoe, Kazuyuki AU - Shirasawa, Katsutoshi AU - Takagi, Tetsuya AU - Takahashi, Sunao AU - Takeuchi, Masao AU - Tamasaku, Kenji AU - Tanaka, Ryotaro AU - Tanaka, Yoshihito AU - Tanikawa, Takanori AU - Togashi, Tadashi AU - Wu, Shukui AU - Yamashita, Akihiro AU - Yanagida, Kenichi AU - Zhang, Chao AU - Kitamura, Hideo AU - Ishikawa, Tetsuya PY - 2008/07/27/ UR - http://dx.doi.org/10.1038/nphoton.2008.134 ER -