title: Atom shutter using bender piezoactuator.
abstract: A flag-type atom shutter based on a rotating lever that is driven by a bender piezoelectric actuator was developed to manipulate atomic beams. The shutter flag was displaced by ∼10 mm to open and close a 5-mm-diameter aperture with a shutter time of 13 ms that produced small mechanical vibrations. The short-term shutter time stability for each cycle was 0.03 ms and the long-term stability over an average of 20 000 cycles was 0.02 ms. The operational cycle number (lifetime) of the shutter reached 2.0 × 106cycles after an intermittent operation over a period of eight months in an ultra-high vacuum chamber, and another shutter in an atmospheric environment swung for 2.6 × 107cycles of continuous operation at 5 Hz for a period of 60 days without major problems. The shutter was shown to be compatible with the operation in an ultra-high vacuum at a low 10-7Pa level after a gentle baking treatment.
authors.affiliation: Center for Time and Frequency, Korea Research Institute of Standards and Science, Daejeon 34113, South Korea.
authors.forename: Huidong
authors.identifier: 0000000216235520
authors.initials: H
authors.lastname: Kim
authors.affiliation: Center for Time and Frequency, Korea Research Institute of Standards and Science, Daejeon 34113, South Korea.
authors.forename: Won-Kyu
authors.initials: WK
authors.lastname: Lee
authors.affiliation: Center for Time and Frequency, Korea Research Institute of Standards and Science, Daejeon 34113, South Korea.
authors.forename: Dai-Hyuk
authors.initials: DH
authors.lastname: Yu
authors.affiliation: Center for Time and Frequency, Korea Research Institute of Standards and Science, Daejeon 34113, South Korea.
authors.forename: Myoung-Sun
authors.initials: MS
authors.lastname: Heo
authors.affiliation: Center for Time and Frequency, Korea Research Institute of Standards and Science, Daejeon 34113, South Korea.
authors.forename: Chang Yong
authors.initials: CY
authors.lastname: Park
authors.affiliation: Center for Time and Frequency, Korea Research Institute of Standards and Science, Daejeon 34113, South Korea.
authors.forename: Sangkyung
authors.initials: S
authors.lastname: Lee
authors.affiliation: Center for Time and Frequency, Korea Research Institute of Standards and Science, Daejeon 34113, South Korea.
authors.forename: Young Kyu
authors.initials: YK
authors.lastname: Lee