Zobrazeno 1 - 10
of 54
pro vyhledávání: '"Torii, Yoshio"'
Publikováno v:
Phys. Rev. Research 6, 043088 (2024)
We explore the efficacy of two single-repumping schemes, $5s5p \,{}^3P_2 - 5p^2 \,{}^3P_2$ ($481\,\mathrm{nm}$) and $5s5p \,{}^3P_2 - 5s5d \,{}^3D_2$ ($497\,\mathrm{nm}$), for a magneto-optical trap (MOT) of Sr atoms. We reveal that the enhancement i
Externí odkaz:
http://arxiv.org/abs/2406.18942
Autor:
Sato, Takumi, Hayakawa, Yusuke, Okamoto, Naohiro, Shimomura, Yusuke, Aoki, Takatoshi, Torii, Yoshio
Publikováno v:
J. Opt. Soc. Am. B 39, 155-159 (2022)
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 (DAVLL) method, which uses dichroism induced by a longitudinal magneti
Externí odkaz:
http://arxiv.org/abs/2111.06076
Publikováno v:
Applied Optics Vol. 57, Issue 6, pp. 1450-1454 (2018)
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:
http://arxiv.org/abs/1712.10156
Publikováno v:
Rev. Sci. Instrum. 84, 063101 (2013)
We develop a simplified light source at 461 nm for laser cooling of Sr without frequency-doubling crystals but with blue laser diodes. An anti-reflection coated blue laser diode in an external cavity (Littrow) configuration provides an output power o
Externí odkaz:
http://arxiv.org/abs/1303.1325
Publikováno v:
Phys. Rev. A 87, 063426 (2013)
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:
http://arxiv.org/abs/1302.6414
We report on the demonstration of Doppler-free polarization spectroscopy of the D2 line of 6Li atoms. Counterintuitively, the presence of an Ar buffer gas, in a certain pressure range, causes a drastic enhancement of the polarization rotation signal.
Externí odkaz:
http://arxiv.org/abs/1204.2363
Publikováno v:
Phys. Rev. A 86, 033805 (2012) [7 pages]
We present a novel and simple method of stabilizing the laser phase and frequency by polarization spectroscopy of an atomic vapor. In analogy to the Pound-Drever-Hall method, which uses a cavity as a memory of the laser phase, this method uses atomic
Externí odkaz:
http://arxiv.org/abs/1201.1985
Publikováno v:
Phys. Rev. Lett. 99, 220407 (2007)
We demonstrate superradiant conversion between a two-mode collective atomic state and a single-mode light field in an elongated cloud of Bose-condensed atoms. Two off-resonant write beams induce superradiant Raman scattering, producing two independen
Externí odkaz:
http://arxiv.org/abs/0706.1821
Autor:
Streed, Erik W, Chikkatur, Ananth P, Gustavson, Todd L, Boyd, Micah, Torii, Yoshio, Schneble, Dominik, Campbell, Gretchen K, Pritchard, David E, Ketterle, Wolfgang
We describe experimental setups for producing large Bose-Einstein condensates of 23Na and 87Rb. In both, a high flux thermal atomic beam is decelerated by a Zeeman slower and is captured and cooled in a magneto-optical trap. The atoms are then transf
Externí odkaz:
http://arxiv.org/abs/cond-mat/0507348
We construct a Mach-Zehnder interferometer using Bose-Einstein condensed rubidium atoms and optical Bragg diffraction. In contrast to interferometers based on normal diffraction, where only a small percentage of the atoms contribute to the signal, ou
Externí odkaz:
http://arxiv.org/abs/cond-mat/9908160