- light freqency
- light frequency
- optical frequency
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光频率的英文
例句与用法
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- The relationship of cut - angle and the degree between pump beam and signal beam in bbo crystal pumped by 425nm pulse is theoretically calculated . 28 . 7 cut - angle bbo crystal is chose for our use , which correspond to a 5 angle between pump beam and signal beam
在中心波长425nm飞秒脉冲抽运、下转换光频率简并的情况下，选择晶体的切割角为28 . 7度，对应下转换光与抽运光在晶体外夹角为5度。 - At the same time , it uses a frequency translator to obtain a frequency shift , which is equal to the brillouin frequency in fiber . then the detecting pulsed light and the cw reference light can coherent . this method greatly improved the system ’ s sensitive and signal to noise ratio ( snr )
同时在探测光路中引入一个光移频环路,使探测光移频后再经光纤中布里渊频移,其后向布里渊散射光频率与参考光束大致相当,可进行相干自外差探测,大大提高了系统的探测灵敏度以及系统的信噪比。 - 4 ) the tuning characteristics of doubly - resonant optical parametric oscillator propo ) output by changing crystal ' s temperature , opo ' s cavity length and pump frequency respectively are theoretically analyzed and experimental obtained the wavelength of the opo output can be tuned from 2038nm to 2227nm by the crystal ' s temperature changed of 5 . 3 , from 2044nm to 2219nm by the cavity length changed of 514nm , and 375mhz by the pump frequency continuously tuned 750mhz
当晶体温度变化5 . 3时，得到2038nm - 2227nm可调谐下转换光输出；当opo的腔长相对于简并点腔长变化514nm时，得到2044nm - 2219nm可调谐下转换光输出：当泵浦光频率连续的改变了750mhz时，下转换光的频率相应连续调谐375mhz 。理论拟合与实验结果基本一致。