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quasi-phase-matching中文是什么意思

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用"quasi-phase-matching"造句"quasi-phase-matching"怎么读"quasi-phase-matching" in a sentence

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  • 准相位匹配

例句与用法

  • At present , we have achieved frequency conversion in pulse - wave and continue - wave as well as quasi - continue - wave by using quasi - phase - matched method
    目前,利用准相位匹配技术已实现了脉冲、准连续和连续光的频率转换。
  • This thesis focuses the research on the theory and application of the electro - optic effect in the quasi - phase - matching ( qpm ) nonlinear optics based on periodically poled lithium niobate ( ppln )
    本文旨在对电光效应基于周期性极化铌酸锂( ppln )的准位相匹配( qpm )非线性光学中的理论及其应用进行研究。
  • In this thesis , the main contents are following : 1 . reviewing the theory of nonlinear frequency conversion . quasi - phase - matching is discused . presenting the method for configuring periodically poled as well as multiple period superlattice
    阐述了非线性频率变换的原理,讨论了相位匹配和准相位匹配技术,着重说明了周期和准周期光学超晶格的工作原理。
  • In addition , quasi - phase - matched materials is being used in optical parametric oscillator widely . periodically poled nonlinear crystals are of particular advantage for realizing efficient optical parametric oscillators
    另外,利用ppln制成的光参量振荡器产生的红外波段光源,在军事对抗、大气环境检测、医学以及光谱学等领域都有十分重要的应用价值。
  • And then the theoretic technique of import the periodically wave of periodically poled crystals in the process of opo was studied , the theoretical method was realized by using period poled crystal in quasi - phase - matched optical parametric oscillation
    研究了将周期极化晶体的周期波矢引入光学参量振荡过程,利用周期极化晶体实现准相位匹配光学参量振荡的理论方法。
  • The near - stoichiometri litao3 has excellent speciality , such as high efficient conversion , tune conveniency , biger size and high damnify value etc . in this dissertation , the theory of quasi - phase - matched ( qpm ) technology and optical parametric oscillation ( opo ) was expatiated and studied first
    近化学计量比litao3 ( slt )晶体在做参量振荡方面具有转换效率高、调谐方便、尺寸大、损伤阈值高等非常好的特性。本文首先对准相位匹配技术和光学参量震荡器的理论进行了阐述和分析。
  • At present , people usually use birefrigence and quasi - phase - matching methods to achieve higher effiency in the process of conversion . a significant advantage of quasi - phase - matching method is that the interaction is occurred through the largest element of the x ( 2 ) tensor ; the period of optical superlattice can be designed randomly , and any interaction can be matched without walk - off angle ; they are fitted to be used in frequency conversion of lower power especially . the quasi - phase - matching method has some advantages over birefrigence method , improving the efficiency of frequency conversion ; the range of frequency conversion covers its whole transperant wavelength
    由于准相位匹配技术有其独特的优势,可以利用非线性光学晶体的最大二阶极化张量,如ppln 、 pplt 、 ppktp用的非线性极化张量都是d _ ( 33 ) ,其有效非线性系数高出普通非线性光学介质(如bbo 、 lbo 、 ktp )一个数量级,而且可以人为灵活设计调制周期,通过周期设计其频率变换范围可以覆盖准相位匹配介质的整个透明波段,选择无走离效应,解决了常规pm难以解决的问题,拓宽了非线性晶体的应用范围,极大地提高了频率转换效率,已成为非线性光学材料和固体激光器的研究热点之一。
用"quasi-phase-matching"造句  

百科解释

Quasi-phase-matching is a technique in nonlinear optics which allows a positive net flow of energy from the pump frequency to the signal and idler frequencies by creating a periodic structure in the nonlinear medium. Momentum is conserved, as is necessary for phase-matching, through an additional momentum contribution corresponding to the wavevector of the periodic structure.
详细百科解释
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