1) polarization beats

极化拍频
1.
The polarization beats in a cascade three-level system have been studied.

研究级联三能级系统中的极化拍频技术 ,发现其对能级差的测量精度决定于光学跃迁的均匀增宽 ,在符合拍频条件下 ,两独立光源拍频的频差可以超出激光线宽 ,激光绝对频率的测量精度可达到与激光线宽同一量级。
2.
The asymmetric behavior of the polarization beats in a V type three level system has been studied when the pump beams have either narrowband or broadband linewidth.
在抽运光为窄带或宽带的情形下 ,对 V型三能级系统中极化拍频的不对称特性进行了研究 ,发现这种不对称特性是由于光学元件色散所导致的零延时的漂移引起
3.
Polarization beats with phase-conjugation geometry originate from the polarization interference between four- or six-wave mixing processes.
相位共轭极化拍频起源于四波混频或六波混频过程间的极化干涉。
2) polarization beat

极化拍频
1.
The higher-order coherence function theory has been applied to study the fifth-order nonlinear effect on polarization beats of a cascade three-level system(FPBCTMS) in Markovian field.
通过对Markovian场混沌场模型、相散场模型及实高斯场模型的分析 ,得到了五阶极化拍频信号的强度在Markovian场中随时间变化的规律。
3) polarization beat

极化拍
1.
Two-photon asymmetric color-locking second-order stochastic correlation of attosecond polarization beats;
基于双光子不对称色锁二阶随机关联的阿秒极化拍研究
4) beat frequency

拍频
1.
A method to measure the beat frequency of weak light;

一种测量弱光拍频的方法
2.
The calculation method of critical operation speed is put forward based on the theories of vibration and composition of beat frequency;the principles of determining the allowable operation speed are concluded.
应用振动和拍频合成理论,提出了计算临界车速的方法,并给出了确定许用车速的原则,供设计人员参考。
3.
In order to find the optimal operating point,expressions for FMDLG beat frequency are analyzed.
当四频差动激光陀螺工作于增益曲线上左、右旋陀螺比例因子相等位置时,误差因素在拍频的差动中得到较好的抵消,因而具有较优的性能。
5) beat frequency

拍频、差频
6) beat frequency

差频,拍频
补充资料:胡笳十八拍·第六拍
【诗文】:
怪得春光不来久,胡中风土无花柳。天翻地覆谁得知,
如今正南看北斗。姓名音信两不通,终日经年常闭口。
是非取与在指撝,言语传情不如手。
【注释】:
【出处】:
全唐诗:卷303-16
怪得春光不来久,胡中风土无花柳。天翻地覆谁得知,
如今正南看北斗。姓名音信两不通,终日经年常闭口。
是非取与在指撝,言语传情不如手。
【注释】:
【出处】:
全唐诗:卷303-16
说明:补充资料仅用于学习参考,请勿用于其它任何用途。
参考词条