KTP晶体具有很高的电导率，给利用外加电场法进行周期极化反转带来困难。
The periodical polarization reversion of KTP crystal utilizing electric field suffers from it's high conductivity.
我们在本文中提出了基于亚微米准周期极化铌酸锂实现多波长光子禁带的结构。
We demonstrate a quasi-periodic structure exhibiting multiple photonic band gaps (PBGs) based on sub-micron-period poled lithium niobate (LN).
随机周期长度偏差对准相位匹配波导中差频效率的影响要比随机占空比偏差的影响来得大，这与单块周期极化晶体中的情况类似。
With the same magnitude, random period error casts much larger effect on the conversion efficiency than random duty cycle error, which is similar with the case in bulk crystals.
采用电脉冲极化方法制作出周期性反转电畴微结构。
The microstructure of periodical reversal ferroelectric domain was produced by means of the electric impulse polarization.
本文利用铁电晶体自发极化产生的强大周期性表面势，首次提出新的自由电子激光原理。
A new principle for free electron lasers is proposed for the first time by using very strong surface periodic potential caused by the spontaneous polarization of ferroelectric single crystals.
与传统的激发极化数据采集方法相比，电场差分法增加了供电的周期，扩大了采样的时间区段，提高了采样的速度。
In contrast with general IP data acquisition, DNM expands frequency band of power, widens sampled time and raises detective rate.
与传统的激发极化数据采集方法相比，电场差分法增加了供电的周期，扩大了采样的时间区段，提高了采样的速度。
In contrast with general IP data acquisition, DNM expands frequency band of power, widens sampled time and raises detective rate.
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