Theoretical study of the properties of second harmonic generation in cslib6o 10晶體倍頻特性的理論研究
Second harmonic is generated by 532nm fundamental wave on clbo , and the harmonic pulse is plotted along with the clbo crystal length 以波長(zhǎng)為532nm基波為例,數(shù)值模擬了經(jīng)過不同長(zhǎng)度的clbo晶體后諧波的脈沖波形,及脈沖寬度隨晶體長(zhǎng)度的變化。
In the last chapter , a novel method of optical voltage sensing based on second harmonic generation in periodically poled linb03 is proposed 本文最后一部分,從光學(xué)電壓傳感器的原理出發(fā),在周期性極化鈮酸晶體倍頻效應(yīng)基礎(chǔ)上,提出了一種新的光學(xué)電壓傳感方法。
In the third chapter , we analyzed the second harmonic generation ( shg ) in theory just like the second chapter and get diffe rent results in different conditions 在本文第三章,如同第二章討論,對(duì)倍頻( shg )調(diào)諧特性也作了理論計(jì)算分析,得到了在各種條件下的不同結(jié)果。
A high efficiency dual - band rf power amplifier has an output and / or input of a high frequency transistor well terminated at the second harmonic frequency for dual - band operation 本發(fā)明乃一種高效率雙頻射頻功率放大器,提供高頻電晶體的輸出端與?或輸入端于雙頻操作中有良好的二階諧波終止。
Taking the second harmonic generation of gaussian beam in a kdp crystal of type matching for example , the effects of diffraction and walkoff on doubling conversion efficiency have been worked out 以類匹配kdp晶體中高斯光束的二倍頻為例,對(duì)衍射和離散兩種因素對(duì)二次諧波轉(zhuǎn)換效率的影響進(jìn)行了數(shù)值模擬計(jì)算。
At present , ktp has been widely used in second harmonic generation ( shg ) , sum ( difference ) - frequency mixing , optical parametric oscillators ( opo ) and optical parametric amplification ( opa ) 目前, ktp已作為一種商業(yè)化的晶體廣泛應(yīng)用于中小功率固體激光器的倍頻( shg ) 、和(差)頻、光參量振蕩( opo )和放大( opa )等。
( 3 ) the frequency may transit from the second harmonic oscillating frequency to the third one when the hot temperature is higher than the specific temperature and the pressure is higher than the specific pressure 在實(shí)驗(yàn)中發(fā)現(xiàn),在一定的加熱溫度和工作壓力下,系統(tǒng)的自激振蕩的頻率從第二諧振頻率跳變到第三諧振頻率。
In the system , a tunable dioxide laser is used as a sensor source , and the method of wavelength modulated is adopted , then concentration of gas is determined through detecting the generated second harmonic by opto - electronics converter 用可調(diào)諧二極管激光作為傳感光源,采用波長(zhǎng)調(diào)制方法,通過對(duì)諧波信號(hào)進(jìn)行光電探測(cè)可得氣體濃度。
We have carried out thoroughly theoretical investigation of the conversion efficiency and the field distribution of the second harmonic generation ( shg ) and the third harmonic generation ( thg ) on the flattened gaussian beam 本文圍繞著河北省教委基金項(xiàng)目,對(duì)平頂高斯光束用于倍頻和混頻的轉(zhuǎn)換效率以及變頻后的諧波場(chǎng)分布進(jìn)行了理論研究。