Abstract: The paper deals with the stabilization of an Extended Cavity Diode Laser (ECDL) working at 729 nm for precision spectroscopy with trapped and cooled 40 Ca+ ion. For an interrogating and readout ion oscillation the laser with ultra-narrow linewidth is required.

2017年1月1日 · We present a compact, sub-Hertz 729 nm laser for a miniaturized 40 Ca + single-ion optical clock. An external cavity diode laser is frequency-stabilized to a horizontally mounted, vibration-insensitive and high-fineness ultra-low-expansion …

2019年11月21日 · We demonstrate key multi-qubit quantum-logic primitives in a dual-species trapped-ion system based on \ ( {}^ {40}\) Ca \ ( {}^ {+}\) and \ ( {}^ {88}\) Sr \ ( {}^ {+}\) ions, using two optical...

2004年10月25日 · Our experimental project aims to build an optical frequency standard using the electric quadrupole transition 4 S 1 / 2 → 3 D 5 / 2 of a single calcium ion at 729 nm. Among the frequency standard candidates, Ca + possesses the major advantage that the required radiations for cooling and exciting the clock transition can be produced directly ...

The S1/2-D5/2 quadrupole transition at 729 nm is excited for sideband cooling and for quantum state preparation and manipulation. Individual ions in a linear string are addressed by a tightly focused 729 nm laser beam. A single Ca+ ion has been cooled in the spherical Paul trap to the ground state of vibration with up to 99.9% probability.

2003年3月15日 · An absolutely stabilized laser diode system for high-resolution spectroscopy of the 42S1/2-32D5/2 electric-quadrupole-allowed transition in calcium ions at 729 nm is developed. Both its...

2015年9月7日 · The electric quadrupole transition between the \({}^2\hbox {S}_{1/2}\) and \({}^2\hbox {D}_{5/2}\) states at 729 nm is used for sideband cooling, which can generate the motional ground state of the ion chain.

2007年5月29日 · Jitter reduction of the 729 nm clock laser for a Ca+ optical frequency standard Abstract: The electric quadrupole transition between the ground state and the first metastable state of a single Ca ion is an attractive choice for a frequency standard in the optical domain.

频准激光的 729nm 激光器，具有窄线宽、高频率稳定度和低强度噪声等特点，可用于Ca+离子相关应用 的激光。 中心波长 729nm

2007年5月1日 · To reduce the TiSa laser linewidth at 729 nm, we use a KD*P electro-optic modulator (EOM) inside the laser cavity. This device shows a couple of mechanical resonances induced by piezo-electric...