quasi-phase-matching造句
例句與造句
- 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，利用準(zhǔn)相位匹配技術(shù)已實現(xiàn)了脈沖、準(zhǔn)連續(xù)和連續(xù)光的頻率轉(zhuǎn)換。 - 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 )
本文旨在對電光效應(yīng)基于周期性極化鈮酸鋰( ppln )的準(zhǔn)位相匹配( qpm )非線性光學(xué)中的理論及其應(yīng)用進(jìn)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
闡述了非線性頻率變換的原理，討論了相位匹配和準(zhǔn)相位匹配技術(shù)，著重說明了周期和準(zhǔn)周期光學(xué)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制成的光參量振蕩器產(chǎn)生的紅外波段光源，在軍事對抗、大氣環(huán)境檢測、醫(yī)學(xué)以及光譜學(xué)等領(lǐng)域都有十分重要的應(yīng)用價值。 - 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
研究了將周期極化晶體的周期波矢引入光學(xué)參量振蕩過程,利用周期極化晶體實現(xiàn)準(zhǔn)相位匹配光學(xué)參量振蕩的理論方法。 - It's difficult to find quasi-phase-matching in a sentence. 用quasi-phase-matching造句挺難的
- 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
近化學(xué)計量比litao3 ( slt )晶體在做參量振蕩方面具有轉(zhuǎn)換效率高、調(diào)諧方便、尺寸大、損傷閾值高等非常好的特性。本文首先對準(zhǔn)相位匹配技術(shù)和光學(xué)參量震蕩器的理論進(jìn)行了闡述和分析。 - 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
由于準(zhǔn)相位匹配技術(shù)有其獨特的優(yōu)勢，可以利用非線性光學(xué)晶體的最大二階極化張量，如ppln 、 pplt 、 ppktp用的非線性極化張量都是d _ ( 33 ) ,其有效非線性系數(shù)高出普通非線性光學(xué)介質(zhì)(如bbo 、 lbo 、 ktp )一個數(shù)量級，而且可以人為靈活設(shè)計調(diào)制周期，通過周期設(shè)計其頻率變換范圍可以覆蓋準(zhǔn)相位匹配介質(zhì)的整個透明波段，選擇無走離效應(yīng)，解決了常規(guī)pm難以解決的問題，拓寬了非線性晶體的應(yīng)用范圍，極大地提高了頻率轉(zhuǎn)換效率，已成為非線性光學(xué)材料和固體激光器的研究熱點之一。