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Iwata, Yoshihiro; Miyabe, Masabumi; Akaoka, Katsuaki; Wakaida, Ikuo; Hasegawa, Shuichi*
Journal of the Optical Society of America B, 41(1), p.119 - 126, 2024/01
Times Cited Count：3 Percentile：46.87(Optics)Calcium Rydberg levels are of significant interest for efficient and isotope-selective resonance ionization of trace radionuclides such as calcium-41 (
Ca). In this study, we report novel measurement data on the energy level shifts of calcium-43 (
Ca) for 4sns 
S
and 4s(n-1)d D
(n=40, 45, 50, 55, 60) Rydberg levels due to hyperfine-induced singlet-triplet mixing specific to isotopes with an odd mass number.
Chen, J.*; Itakura, Ryuji; Nakajima, Takashi*
Journal of the Optical Society of America B, 28(9), p.2195 - 2199, 2011/09
Times Cited Count：2 Percentile：12.51(Optics)We propose a two-color pumping scheme to characterize attosecond extreme ultraviolet (XUV) pulses. The fundamental and its second harmonic of a fs Ti:Sapphire laser create a coherent superposition of the 4
and 5 states of K, and we retrieve the spectral phase of the XUV pulse from the phase offset of the photoelectron signal as a function of time delay after the pump pulse. The scheme is technically simple and efficient to characterize 100 attosecond pulses.
Koga, J. K.
Journal of the Optical Society of America B, 26(5), p.930 - 938, 2009/05
Times Cited Count：3 Percentile：19.59(Optics)Furukawa, Yusuke*; Tanaka, Momoko; Nakazato, Tomoharu*; Tatsumi, Toshihiro*; Nishikino, Masaharu; Yamatani, Hiroshi; Nagashima, Keisuke; Kimura, Toyoaki; Murakami, Hidetoshi*; Saito, Shigeki*; et al.
Journal of the Optical Society of America B, 25(7), p.B118 - B121, 2008/07
Times Cited Count：26 Percentile：73.04(Optics)Using EUV laser operated at 13.9 nm ZnO and GaN are shown to be excellent scintillators in this wavelength region. Especially ZnO has short response time of 3 ns and prominent peak fluorescence from excitation at 380 nm.
O
crystalsKiriyama, Hiromitsu; Nakano, Fumihiko*; Yamakawa, Koichi
Journal of the Optical Society of America B, 19(8), p.1857 - 1864, 2002/08
Times Cited Count：7 Percentile：35.54(Optics)no abstracts in English
Matsuoka, Shinichi; Yamakawa, Koichi
Journal of the Optical Society of America B, 17(4), p.663 - 667, 2000/04
Times Cited Count：31 Percentile：76.48(Optics)no abstracts in English
