Zobrazeno 1 - 10
of 30
pro vyhledávání: '"Jongchul Mun"'
Autor:
Meungho Seo, In Hwan Do, Hansuek Lee, Dai-Hyuk Yu, Sangwon Seo, Hyun-Gue Hong, Jeong Ho Han, Sang Eon Park, Sang-Bum Lee, Taeg Yong Kwon, Jongchul Mun, Jae Hoon Lee
Publikováno v:
Optics express. 30(14)
Transporting cold atoms between interconnected vacuum chambers is an important technique for increasing the versatility of cold atom setups, particularly for those that couple atoms to photonic devices. In this report, we introduce a method where we
Publikováno v:
Physical Review A. 102
We report the design and application of an optically compensated zoom lens supporting a moving optical dipole trap for transporting cold atoms. The proposed zoom lens is designed to have tunable magnification in a compact form factor which can signif
Publikováno v:
Physical Review A. 101
We study an interaction-induced dimensional crossover from two to three dimensions in a weakly interacting $^{87}\mathrm{Rb}$ Bose-Einstein condensate (BEC). A highly oblate harmonic optical dipole trap was used where we independently controlled the
Autor:
Sang Eon Park, Taeg Yong Kwon, Chang Yong Park, Sangkyung Lee, Jongchul Mun, Sang-Bum Lee, Won-Kyu Lee, Dai-Hyuk Yu
Publikováno v:
Journal of the Korean Physical Society. 63:883-889
The current status of an Yb optical lattice clock at the Korea Research Institute of Standards and Science (KRISS) is reported. The systematic uncertainty of the Yb clock in the first accuracy evaluation was 1.5 × 10−14 [Park et al., Metrologia 50
Publikováno v:
Physical Review A. 94
We present precise measurements of the optical Feshbach resonances (OFRs) of $^{174}$Yb atoms for the intercombination transition. We measure the photoassociation (PA) spectra of a pure $^{174}$Yb Bose-Einstein condensate, and determine the dependenc
Publikováno v:
Journal of the Korean Physical Society. 61:1021-1027
We describe our high-performance experimental apparatus for producing large atom number 87Rb Bose-Einstein condensates by using a double magneto-optical trap (MOT) system that consists of a two-dimensional MOT (2D MOT) and a three-dimensional MOT (3D
Publikováno v:
Optics Communications. 285:3950-3954
We present an intense source of cold rubidium atoms from a two-dimensional magneto-optical trap (2D MOT) with a two-color pushing laser that generates an adjustable mean velocity ranging from 20 to 45 m/s. The dependence of the flux and velocity dist
Publikováno v:
Korean Journal of Optics and Photonics. 21:103-110
A fiber-phase-noise compensating system was constructed for a 1.4 GHz reference frequency transferred through a 13-km-long fiber spool. The transfer instability was dependent on the temperature variation of the compensating system. With the room temp
Autor:
Won-Kyu Lee, Jongchul Mun, Sang-Eon Park, Ho-Suhng Suh, Chang-Yong Park, Dai-Hyuk Yu, Han-Young Ryu
Publikováno v:
Korean Journal of Optics and Photonics. 21:123-128
Sum frequency generation was utilized to obtain a yellow laser with the wavelength of 578.4 nm for a probe laser of an Yb lattice clock. The output of an Nd:YAG laser with wavelength of 1319 nm and that of an Yb-fiber laser with wavelength of 1030 nm
Publikováno v:
Metrologia. 47:24-32
The weighted mean is widely used in combining data sets of experimental measurements with a weight proportional to the value of the data number divided by the sample variance in a conventional method. However, this standard procedure is not appropria