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The nonlinear absorption and nonlinear refractive index of porous silicon/DR1 composite films at 1064nm have been measured respectively.

用单光束扫描法研究了多孔硅／DR1复合膜的三阶非线性光学性质，测量了在1064nm处多孔硅／DR1复合膜的双光子吸收系数和非线性折射率。

Absorption spectrta, fluorescence spectra , linear absorption coefficient, linear refractive index, molecule concentration of liquid samples and thickness of thin films were measured.

对自制的偶氮苯样品作吸收光谱、荧光光谱、线性吸收系数、线性折射率以及液体样品的浓度和薄膜样品的膜厚等的测量。

The plasma density scale length decided by main laser pulse in the experiment is suitable for Vacuum Heating, and it is the domiant process for hot electron generation. From the scaling law about hot electron temperature given by VH model, the hot electron measured by experiment was reasonable, the temperature was higher than the temperature given by Rcsonant Absorption scaling law.

从真空吸收给出的超热电子温度的定标率来看，实验中测量得到的超热电子温度是合理的。X射线是各向同性的，X射线产额随入射激光强度的降低而减小，当强度小于10〓W/cm〓时，不再有硬X射线产生。

In this paper, we got the regularity of cavity ring-down spectroscopy when the line width of laser pulse is far larger than the absorption line width of measured substance.

本文研究了当激光脉冲线宽远大于被测吸收物质的吸收线宽时，衰荡光谱满足的规律，以及在这种情况下，测量灵敏度的大小。

Most of the molecular characteristic absorption is very weak, and the absorption line width is very narrow that can't be measured by traditional methods.

TDLAS系统的关键是利用激光二极管有很高光谱分辨率和可调谐性的特点，可以对特定分子在特定光谱范围内的一条振转线的光谱吸收进行测量而反演吸收气体的浓度，而且能够把待测分子与背景的干扰区分开来。

The optical absorption spectrum of the film has been measured and the bandgap of the film has been also determined.

我们测试了此薄膜的光吸收特性，并得到了它的禁带宽度。

In fact, measured molar absorptivity is also related to apparatus used.

实际上，测得的摩尔消光系数也和使用的仪器有关。

The two authors define the middle class abstemiously, as those who spend $2-10 a day, measured in 1993 purchasing-power-parity dollars.

两位作者发现这些中产阶层非常节俭，因为对比1993年美元购买力平价，他们每天生活仅仅花费2-10美元。

The thorium abundance ratio measured for the star in the Ursa Minor dwarf galaxy is as low as that found in the oldest stars in the Milky Way, suggesting that this star could be at least 12 billion years old.

钍丰度比测得的星在URSA患者小矮星系是低至那被发现在古老的恒星在银河系中，暗示这颗恒星可能至少有12亿年之久。

Uranium isotope abundance ratio has been measured by total sample evaporation and signal integration, and a thermal surface ionization mass sepctrometry equipped with multicollector has been used.

采用全蒸发技术、离子流强度积分的方式，用多接收器热表面电离质谱计测量铀同位素丰度。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。