查询词典 stimulated absorption

The two-photon absorption cross-sections of these styryl derivatives were determined by Z-scan technique, and the benzothiazolium derivatives exhibited the largest TPA cross-sections (10〓s·cm〓/photon) and the best power limiting ability at high operable incident intensity. The results show that the benzothiazolium derivatives are promising organic compounds as two-photon absorption optical limiting materials. 2. Several organic dyes active to 800nm femtosecond laser with D-π-A structure were designed and synthesized.

研究了它们的上转换荧光、上转换激射和光限幅行为，通过改变染料分子共轭体系的大小，首次实现了在576nm-635nm范围内的双光子上转换激光波长的调节，其中噻唑啉碘盐类二苯乙烯化合物的双光子上转换激射峰（576nm）是迄今在1064nm皮秒激光作用下能够得到的最短波长的激光；阴离子显著改变上转换激射效率，但对上转换荧光峰和激射峰的位置影响很小；增加溶液的浓度，上转换荧光光谱和激射光谱红移，并在一定的浓度范围内，能够有效的提高上转换激射效率；利用Z-扫描技术测定了染料分子的双光子吸收截面，发现苯并噻唑类染料分子的双光子吸收截面高达10〓s·cm〓／photon，而且在较大的入射光强范围内，这类染料分子具有较大的光限幅能力，是一类作为双光子吸收光限幅材料很有潜力的染料分子。

A three-level energy model is forwarded on the nonlinear absorption properties o f a two-photon absorption dye trans-4-[4′-(N- hydroxyethyl- N-eth ylamino)styryl]-N-methylpyridinium p-toluene sulfonate.

提出了有机染料反式 4 [4′(N 羟乙基 N 乙基胺基)苯乙烯基 ] N 甲基吡啶对甲苯磺酸盐非线性吸收的三态模型。

The moisture absorption change abided by the Fick rule and dimensional change of the two kind of bamboo flooring were very similar. The results showed that the equal moisture content and moisture absorption speed of the sympodial flooring were higher than of moso bamboo flooring in summer extreme conditions. However, less differences were found in winter conditions.

结果表明：夏季高温湿热环境对竹地板吸湿及尺寸稳定性影响较明显，丛生竹地板和毛竹地板的吸湿性能变化规律基本符合菲克定律，且两者变化规律相似；但冬季湿热环境对竹地板影响较小。

The charge transfer rate and the total absorption of simulated solar light were remarkably increased because of the presence of MWCNT thin film, which has a superior electron-conducting property, an absorption property and a tanglesome network, providing an ideal matrix for uniform distribution of TiO2 nanoparticles.

MWCNT薄膜具有良好的电子导电性、吸光性和镂空的网状结构等性质，形成了一个理想的基板负载TiO2纳米颗粒，而且显著提高了纳米复合薄膜电极光生载流子的分离效率和模拟太阳光的利用效率。

These decreases in absorption were not a nonspecific global event,because there was no postprandial effect on absorption of oleic acid or taur- ocholate at any time point.

这些吸收的下降并是一个特殊的全球化事件，因为在餐后任何时间都不会影响对油酸或者牛黄胆酸的吸收。

Comparisons between the experimental and computational IR spectra clarify the difference of the open- and closed-ring isomers, which indicate that it is possible to identify the tautomeric form of this diarylethene derivative using a highly selective infrared absorption band and the strong absorption at 1 705 cm-1 of the ring-closed isomer can be used in non-destructive readout by IR light.

通过红外吸收光谱表征了该光致变色二芳基乙烯衍生物在溶液中开、关环前后结构的变化，并采用理论化学计算方法研究了该化合物开、关环异构体的红外吸收振动特性。光致变色异构化过程可以通过红外吸收光谱的变化而识别。关环异构体在1 705 cm

We have theoretically studied on the geometrical structure, electronic structure, one-photon absorption and two-photon absorption properties of perylene tetracarboxylic derivatives by using DFT and ZINDO methods.

用密度泛涵方法和ZINDO方法，从理论上研究了一系列四羧酸二萘嵌苯的衍生物。对其平衡几何、电子结构和单双光子吸收性质进行了详细的计算研究。

The effect of cruciform structure on the two photon absorption action cross-section of fluorescence chromophore was reported. 1,4-Di(9'-ethyl-carbazolyl)-3'-vinylbenzene (R1) is a classic two photon absorption chromophore with D-π-D structure.

报道了十字形结构对荧光生色团的双光子吸收作用横截面积的影响。1，4-二（9'-乙基咔唑基）－3'-乙烯基苯(R1)是经典的具有D-π-D结构的TPA生色团。

The essence of ink absorption is the paper in the business card printing and membership card making ink absorption and attachment of comprehensive reflect not only the paper surface properties, porosity, compressibility, absorbent, and so on, and the composition of the innovativeink, bloodrheologyand, xerotic, and other relevant and business card printing and membership card modes, cards and membership cards to make the time pressure and nano-imprint lithography.

吸不朱性的本色是纸张在制卡和会员卡制作历程洋不差油不朱的汲取和附着的归纳反响，不仅与纸张的黑不天本能机能、孔隙率、可压缩性、吸附性等有关，还与油不朱的组不败身分、流变性和潮湿性等有关，也与制卡和会员卡制作方法、制卡和会员卡制作不压辛和压印工夫等有关。

The binding of bis-ANS bound to blue membrane at different temperature are only one binding sites. 4. The research results of fluorescence, absorption spectra and stopped flow method used to track the process of transition from acidifying purple membrane to blue membrane indicate that the transition of the characteristic absorption band of retinal(from 570 to 605 nm) and the maximum excitation wavelengths of bacteriorhodopsin(from 326 to 331 nm) occurres at a narrow concentration range of HCl(11.5-13.3 mmol/L). The transition process performs within 0 to 2s.

通过荧光光谱、吸收光谱和停流技术对酸化紫膜转变成蓝膜变化过程的跟踪研究表明，视黄醛特征峰的递变(570→605nm)以及蛋白质荧光最大发射波长的递变(326→331nm)都是在狭窄的HCl浓度范围(11.5-13.3mmol／L)内同步进行的，该转变过程在0-2s之内极快完成。

If I didn't care what anyone thought, I would.....

如果我不介意别人怎么看，我会。。。。

In recent decades, Chile has mandated earthquake-proofing for new structures, requiring that materials like rubber and features like counterweights be built into the architectural designs to allow buildings to bend and sway during temblors rather than break.

在最近数十年里，智利已经为兴建防震的新土建结构而对建筑材料提出要求，需要的材料类似于橡胶，而特性就象运用在建筑设计中的平衡物体，一旦应用以后，当地震发生时建筑就能弯曲摇摆。