Zobrazeno 1 - 10
of 33
pro vyhledávání: '"Yoshio Torii"'
Publikováno v:
Physical Review Research, Vol 6, Iss 4, p 043088 (2024)
We explore the efficacy of two single-repumping schemes, 5s5p^{3}P_{2}−5p^{2}^{3}P_{2} (481nm) and 5s5p^{3}P_{2}−5s5d^{3}D_{2} (497nm), for a magneto-optical trap (MOT) of Sr atoms. We reveal that the enhancement in the MOT lifetime is limited to
Externí odkaz:
https://doaj.org/article/87410c03be2a441c8bb5e0e00d96beb3
Autor:
Yusuke Hayakawa, Yoshio Torii, Takumi Sato, Yusuke Shimomura, Takatoshi Aoki, Naohiro Okamoto
We report a robust method of stabilizing a laser to the frequency of an atomic transition using a hollow cathode lamp. In contrast to the standard dichroic atomic vapor laser lock method, which uses dichroism induced by a longitudinal magnetic field,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d43f9c3ef99be0703258a8579b2045f8
http://arxiv.org/abs/2111.06076
http://arxiv.org/abs/2111.06076
Publikováno v:
Pathology International. 65:446-449
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6cfda9f5e7450f70c3078f671e8493a4
https://doi.org/10.1111/pin.12289
https://doi.org/10.1111/pin.12289
Publikováno v:
Applied Optics. 57:1450
We report on the demonstration of Doppler-free spectroscopy of metastable Sr atoms using a hollow cathode lamp (HCL). We employed a custom Sr HCL which is filled with a mixture of 0.5-Torr Ne and 0.5-Torr Xe as a buffer gas to suppress velocity chang
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0e0d1814581ebca68352f3488889d211
https://doi.org/10.1364/ao.57.001450
https://doi.org/10.1364/ao.57.001450
Autor:
Yoshio Torii
Publikováno v:
The Review of Laser Engineering. 28:147-153
Experimental techniques to produce and observe a Bose-Einstein condensate of rubidium atoms are presented. The atoms are first optically cooled and trapped in an ultra-high vacuum (-10-11 torr) glass cell using a double magneto-optical trap, and then
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::386f6f9d5eaf726fe03deb880e3cdf9d
https://doi.org/10.2184/lsj.28.147
https://doi.org/10.2184/lsj.28.147
Autor:
Y. Suzuki, Lu Deng, Takahiro Kuga, Mikio Kozuma, Yoshio Torii, Toshiaki Sugiura, Edward W. Hagley
Publikováno v:
Science. 286:2309-2312
Phase-coherent matter-wave amplification was demonstrated using Bose- Einstein–condensed rubidium-87 atoms. A small seed matter wave was created with coherent optical Bragg diffraction. Amplification of this seed matter wave was achieved by using t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ab095ecc49e62d788ef682cda3a4f877
https://doi.org/10.1126/science.286.5448.2309
https://doi.org/10.1126/science.286.5448.2309
Autor:
Masashi Yoshimura, Taro Sekikawa, Mikio Kozuma, Takayoshi Kobayashi, Yoshio Torii, Nobuhiko Nishiyama, Yusuke Tamaki, H. Takuma, Taro Itatani, Yoshihito Hirano, Makoto Gonokami
Publikováno v:
The Review of Laser Engineering. 27:553-571
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2423556c22cb67f9165cdbefb44b5e0b
https://doi.org/10.2184/lsj.27.553
https://doi.org/10.2184/lsj.27.553
Publikováno v:
The European Physical Journal D - Atomic, Molecular and Optical Physics. 1:239-242
We utilized a blue-detuned Laguerre-Gaussian (doughnut) laser beam to trap cold rubidium atoms by optical dipole force. \Pulsed" polarization gradient cooling was applied to the trapped atoms to suppress the trap loss due to heating caused by random
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4cd0f4b01b02c46279dd95edb4ff5918
https://doi.org/10.1007/s100530050088
https://doi.org/10.1007/s100530050088
Publikováno v:
Physical Review Letters. 78:4713-4716
We have constructed a novel optical trap for neutral atoms by using a Laguerre-Gaussian (doughnut) beam whose frequency is blue detuned to the atomic transition. Laser-cooled rubidium atoms are trapped in the dark core of the doughnut beam with the h
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5175f60ef7f76ae3c4ffaff1882901a5
https://doi.org/10.1103/physrevlett.78.4713
https://doi.org/10.1103/physrevlett.78.4713
Publikováno v:
Physical Review A. 87
We demonstrate the simultaneous magneto-optical trapping (MOT) of Rb and Sr and examine the characteristic loss of Rb in the MOT due to photoionization by the cooling laser for Sr. The photoionization cross section of Rb in the $5P_{3/2}$ state at 46
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::636e8bed1a9bb3b6e03605069cc7245a
https://doi.org/10.1103/physreva.87.063426
https://doi.org/10.1103/physreva.87.063426