Development of multiple laser frequency control system for Ca+ isotope ion cooling

被引：4
|
作者：
Jung, Kyunghun [1 ]
Yamamoto, Yuta [2 ]
Hasegawa, Shuichi [1 ]
机构：
[1] Univ Tokyo, Nucl Profess Sch, 2-22 Shirane, Naka, Ibaraki 3191188, Japan
[2] Univ Tokyo, Dept Nucl Engn & Management, Bunkyo Ku, Tokyo 1138656, Japan
来源：
HYPERFINE INTERACTIONS | 2015年 / 236卷 / 1-3期
关键词：
Ion trap; Calcium ion; Isotope; Diode laser; Fringe offset lock; STABILIZED DIODE-LASER; HYPERFINE-STRUCTURE; DYE-LASER; DRIFT; SPECTROMETER; CALCIUM; SHIFTS; PHASE;
D O I：
10.1007/s10751-015-1209-x
中图分类号：
O64 [物理化学（理论化学）、化学物理学]; O56 [分子物理学、原子物理学];
学科分类号：
070203 ; 070304 ; 081704 ; 1406 ;
摘要：
We here developed and evaluated a laser frequency control system which synchronizes the laser frequency to the resonance of target Ca (+) isotope ion whose having more than 8 GHz of isotope shift based on the Fringe Offset Lock method for simple operation of ICPMS-ILECS (Inductively Coupled Plasma Mass Spectrometry - Ion trap Laser Cooling Spectroscopy) The system fulfilled the minimum requirements of four slave lasers stability for Doppler cooling of Ca (+) ions. A performance of the system was evaluated by cooling Ca-40 (+) ions with the stabilized slave lasers. All the stable even Ca (+) isotope ions were trapped and their fluorescence was observed by switching laser frequencies using the system. An odd calcium isotope Ca-43 (+)cooling was also succeeded by the control system.
引用
收藏
页码：39 / 51
页数：13
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