研究了简并二能级系统的受激光子回波效应。
The stimulated photon echo in degenerate two-level system has been studied.
本文用弹球模型讨论了双光子三能级光子回波的形成。
The Billiard-Ball Model has been used to discuss the formation of Two-photon Tri-level Echo.
同时由光子回波信号测得由声子作用引起的波包退相特征时间。
Moreover, the photon echo signal gave the dephasing time due to the phonon interaction.
辐射出的光被称为光子回波，它的观测表明我们对于原子的量子态进行了完全的控制。
The burst of light is called a photon echo; and its observation proved we have full control over the quantum state of the atoms.
利用相位共轭极化拍频光谱术对V型三能级系统中的光子回波进行了研究。
Photon echo in polarization beat spectroscopy is studied for a V-type three-level system.
本文给出了距离选通光子计数系统的信噪比模型并讨论了激光回波与探测器选通门之间的同步问题。
This article provides the signal-to-noise ratio module of the range-gating photon counting system and discusses the synchronization between the laser echo wave and the detector gate.
光子计数成像激光雷达需要测量一个激光主波和与之对应的多个回波之间的时间间隔，并具有高精度。
The time intervals between laser main pulse and the corresponding multiple echoes were needed to measure in photon counting imaging lidar, and the system had to have high precision.
在激光雷达测量平流层下部臭氧时，我们发现光电倍增管接收到较低高度的强信号后，回波信号会产生光子并合现象。
In lidar measurements of ozone in lower stratosphere, the phenomena of photon overlap are found when PMT receive the stronger signals from lower altitude.
在激光雷达测量平流层下部臭氧时，我们发现光电倍增管接收到较低高度的强信号后，回波信号会产生光子并合现象。
In lidar measurements of ozone in lower stratosphere, the phenomena of photon overlap are found when PMT receives the stronger signals from lower altitude.
摘要：激光测距系统回波光子特性分析对激光测距理论研究、系统设计以及性能评估具有重要意义。
Abstract: Analysis of echo photons' characteristics in laser ranging system is of great significance for laser ranging theory, system design as well as performance evaluation.
利用所建立的模型对探测系统进行仿真，得到激光回波光子数模型仿真值。
The simulation of the system of single-photon detection for the space targets is carried out based on these models to get the number of laser photon echo which is simulate value.
利用所建立的模型对探测系统进行仿真，得到激光回波光子数模型仿真值。
The simulation of the system of single-photon detection for the space targets is carried out based on these models to get the number of laser photon echo which is simulate value.
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