Zobrazeno 1 - 10
of 682
pro vyhledávání: '"A. Onae"'
Autor:
Kobayashi, Takumi, Akamatsu, Daisuke, Hosaka, Kazumoto, Inaba, Hajime, Okubo, Sho, Tanabe, Takehiko, Yasuda, Masami, Onae, Atsushi, Hong, Feng-Lei
Publikováno v:
J. Opt. Soc. Am. B 33, 725 (2016)
We report absolute frequency measurements of 81 hyperfine components of the rovibrational transitions of molecular iodine at 578 nm using the second harmonic generation of an 1156-nm external-cavity diode laser and a fiber-based optical frequency com
Externí odkaz:
http://arxiv.org/abs/1603.07416
Autor:
Tanabe, Takehiko, Akamatsu, Daisuke, Kobayashi, Takumi, Takamizawa, Akifumi, Yanagimachi, Shinya, Ikegami, Takeshi, Suzuyama, Tomonari, Inaba, Hajime, Okubo, Sho, Yasuda, Masami, Hong, Feng-Lei, Onae, Atsushi, Hosaka, Kazumoto
Publikováno v:
Journal of the Physical Society of Japan, 84, 115002 (2015)
We performed an absolute frequency measurement of the $^1S_{0}$-$^3P_{0}$ transition in $^{87}$Sr with a fractional uncertainty of $1.2 \times 10^{-15}$, which is less than one third that of our previous measurement. A caesium fountain atomic clock w
Externí odkaz:
http://arxiv.org/abs/1509.03967
Autor:
Okubo, Sho, Iwakuni, Kana, Inaba, Hajime, Hosaka, Kazumoto, Onae, Atsushi, Sasada, Hiroyuki, Hong, Feng-Lei
Publikováno v:
Applied Physics Express, 8, 082402 (2015)
We have carried out dual-comb spectroscopy and observed in a simultaneous acquisition a 140-THz-wide spectrum from 1.0 to 1.9 {\mu}m using two fiber-based frequency combs phase-locked to each other. This ultra-broad wavelength bandwidth is realized b
Externí odkaz:
http://arxiv.org/abs/1507.08006
Autor:
Kobayashi, Takumi, Akamatsu, Daisuke, Hosaka, Kazumoto, Inaba, Hajime, Okubo, Sho, Tanabe, Takehiko, Yasuda, Masami, Onae, Atsushi, Hong, Feng-Lei
Publikováno v:
Opt. Express 23, 20749 (2015)
We demonstrate a compact iodine-stabilized laser operating at 531 nm using a coin-sized light source consisting of a 1062-nm distributed-feedback diode laser and a frequency-doubling element. A hyperfine transition of molecular iodine is observed usi
Externí odkaz:
http://arxiv.org/abs/1506.06323
Autor:
Akamatsu, Daisuke, Yasuda, Masami, Inaba, Hajime, Hosaka, Kazumoto, Tanabe, Takehiko, Onae, Atsushi, Hong, Feng-Lei
The frequency ratio of the 1S0(F=1/2)-3P0(F=1/2) clock transition in 171Yb and the 1S0(F=9/2)-3P0(F=9/2) clock transition in 87Sr is measured by an optical-optical direct frequency link between two optical lattice clocks. We determined the ratio (\nu
Externí odkaz:
http://arxiv.org/abs/1403.5836
Autor:
Akamatsu, Daisuke, Inaba, Hajime, Hosaka, Kazumoto, Yasuda, Masami, Onae, Atsushi, Suzuyama, Tomonari, Amemiya, Masaki, Hong, Feng-Lei
Publikováno v:
Applied Physics Express 7, 012401 (2014)
We perform spectroscopic observations of the 698-nm clock transition in $^{87}$Sr confined in an optical lattice using a laser linewidth transfer technique. A narrow-linewidth laser interrogating the clock transition is prepared by transferring the l
Externí odkaz:
http://arxiv.org/abs/1401.1008
Autor:
Yasuda, Masami, Kohno, Takuya, Inaba, Hajime, Nakajima, Yoshiaki, Hosaka, Kazumoto, Onae, Atsushi, Hong, Feng-Lei
Publikováno v:
J. Opt. Soc. Am. B, 2010 (ID 125081)
A frequency-stabilized light source emitting at 556 nm is realized by frequency-doubling a 1112-nm laser, which is phase-locked to a fiber-based optical frequency comb. The 1112-nm laser is either an ytterbium (Yb)-doped distributed feedback fiber la
Externí odkaz:
http://arxiv.org/abs/1005.3152
A stable light source obtained using sum-frequency generation (SFG) is developed for high-resolution spectroscopy at 578 nm. Hyperfine transitions of molecular iodine are observed by using the SFG light source with saturation spectroscopy. The light
Externí odkaz:
http://arxiv.org/abs/0902.0463
Autor:
Okubo, Sho, Iwakuni, Kana, Yamada, Koichi M.T., Inaba, Hajime, Onae, Atsushi, Hong, Feng-Lei, Sasada, Hiroyuki
Publikováno v:
In Journal of Molecular Spectroscopy November 2017 341:10-16
Publikováno v:
Sleep. 45:A171-A172
Introduction Obstructive sleep apnea (OSA) is the most common sleep-related breathing disorder. There are many conditions associated with OSA, including obesity hypoventilation syndrome, congestive heart failure, atrial fibrillation, pulmonary hypert
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b011b303fb07c83199127011c458a018
https://doi.org/10.1093/sleep/zsac079.379
https://doi.org/10.1093/sleep/zsac079.379