论文标题
挤压光的两光子吸收的各个方面：CW极限
Aspects of Two-photon Absorption of Squeezed Light: the CW limit
论文作者
论文摘要
当单光子吸收到中间状态时，我们对经典和挤压光的两光子吸收有效进行了理论分析，这要么与共振或低强度和高强度制度相互共振或遥不可及。在本文中，我们专注于连续波动的激发，尽管我们开发的方法更为笼统。我们计算从入射场中除去的典型实验参数的能量，并考虑与分子宽度相比，光子对是窄带或宽带时的限制案例。我们发现，由于大挤压光带宽的共振贡献以及由于低强度状态下的光子束，两光子吸收的增强。但是，在这两种情况下，对于我们选择的参数，单光子的吸收是参数空间区域中的主要过程，在该区域中，两光子吸收的大量增强是可能的。
We present a theoretical analysis of two-photon absorption of classical and squeezed light valid when one-photon absorption to an intermediate state is either resonant or far-detuned from resonance, and in both the low and high intensity regimes. In this paper we concentrate on continuous-wave excitation, although the approach we develop is more general. We calculate the energy removed from an incident field for typical experimental parameters and consider the limiting cases when the photon pairs are narrowband or broadband compared to the molecular linewidths. We find an enhancement of the two-photon absorption due to resonant contributions from the large squeezed light bandwidth and due to photon bunching in the low intensity regime. However, in both cases, for the parameters we choose, the one-photon absorption is the dominant process in the region of parameter space where a large enhancement of the two-photon absorption is possible.
