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29 January 2008 Fine spectroscopy of semiconductor atoms for controlling nuclear spins
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We investigate optical properties of semiconductor atoms by absorption and emission spectroscopies. Each of 3PJ' - 3J transitions except for J'=0 (the total angular momentum of the ground state) is confirmed in broad emission spectra in a hollow-cathode discharge in which negative electrodes incorporate semiconductor atoms that are evaporated in the discharge. For finer spectroscopies, the 3P1 - 30 cyclic transition for laser cooling of silicon atoms at 252 nm is investigated in absorption spectra with a single-frequency tunable deep-UV coherent light source, which has a high potential for controlling their nuclear spins.
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Yasutomo Shiomi, Takeshi Yamamoto, Yuta Aoki, Hiroshi Kumagai, and Ataru Kobayashi "Fine spectroscopy of semiconductor atoms for controlling nuclear spins", Proc. SPIE 6905, Complex Light and Optical Forces II, 69050F (29 January 2008);

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