论文标题
精确的脉冲成型，以控制强光学转换
Precise pulse shaping for quantum control of strong optical transitions
论文作者
论文摘要
量子控制技术的进步导致了几乎完美的核自旋和原子超细基态的单量控制。相比之下，即使是自由原子，对强光学转变的量子控制也不是完美的。这种量子控制的发展似乎是通过可用的激光技术瓶颈，用于生成带有子THZ编程带宽的孤立的，次纳秒的光波形。在这里，我们基于精确堆叠多个延迟的皮秒脉冲，为所需的脉冲成型提出了一种简单且可靠的方法。我们的主要演示证明会导致任意可调的光波形，具有30〜GHz带宽和$ 100〜 $ PS的持续时间。我们通过将脉冲与激光冷原子连接起来，从而确认波形的稳定性，从而导致``超排除''光谱信号。这种脉冲成型方法可能会在量子光学元件中打开令人兴奋的视角，以及与模式锁定激光器的快速激光冷却和原子干涉测量法。
Advances of quantum control technology have led to nearly perfect single-qubit control of nuclear spins and atomic hyperfine ground states. In contrast, quantum control of strong optical transitions, even for free atoms, are far from being perfect. Developments of such quantum control appears to be bottlenecked by available laser technology for generating isolated, sub-nanosecond optical waveforms with sub-THz programming bandwidth. Here we propose a simple and robust method for the desired pulse shaping, based on precisely stacking multiple delayed picosecond pulses. Our proof-of-principal demonstration leads to arbitrarily shapeable optical waveforms with 30~GHz bandwidth and $100~$ps duration. We confirm the stability of the waveforms by interfacing the pulses with laser-cooled atoms, resulting in ``super-resolved'' spectroscopic signals. This pulse shaping method may open exciting perspectives in quantum optics, and for fast laser cooling and atom interferometry with mode-locked lasers.
