查询词典 picosecond

With the wide utilization of the femtosecond laser system and the great achievement in the field of the ultrafast spectroscopy, ultrafast processes of the novel material can now be investigated in the picosecond and femtosecond domains.

而飞秒激光器的广泛使用和飞秒光谱学的日臻完善使人们对新型材料中的超快动力学过程的探测成为可能。

The ASM fiber laser generates 1.8 picosecond pulses with 14 mW average power at 1 GHz repetition rate.

此系统的第一级光源为一功率为14 mW、脉冲宽度为 1.8 ps、重复率为 1 GHz 的脉冲序列。

Moreover, we will continuely strive for advanced fields such as ultraviolet laser,femtosecond and picosecond laser

另外，我们还将向紫外激光、飞秒及皮秒激光等高端领域不断进取，永保国内领先，争创世界一流。

Picosecond time-resolved studies using time-correlated single photon counting technique were performed for four Polythiophene derivatives ( POTT、POTTOT、POTPy and POTPyOT ) under three different conditions ( Solution、Film and PMMA Film).

本论文利用时间相关单光子技术（Time-Correlated Single Photon Counting；TCSPC）来研究聚噻吩衍生物( POTT、POTTOT、POTPy及POTPyOT )在三种不同凝态环境下(溶液、薄膜、混PMMA薄膜)的光谱与动态学。

An apparatus of picosecond time-resolved spectra's measurement is established, in which a mode-locking Argon ion laser and Boxcar signal averager and processor is used.

建立了以锁模氩离子激光器和Boxcar信号平均处理器为主体的皮秒时间分辨荧光光谱测量装置，时间分辨率可达120ps。

It is self-defocusingto nanosecond pules and self-focusing to picosecond ones.

首次发现团簇对不同宽度脉冲非线性折射符号不同。

Further picosecond PL studies on dendronized PFs show that the fluorene-based emission in dilute solution follows a single exponential decay, whereas those in thin film decayed in a multi-phase manner and the lifetime prolongs with the generation of dendronization. These observations are discussed in terms of dispersive transport happening between adjacent chains in film. The dispersive relaxation can be controlled by site isolation of bulky dendrons. Our results prove that dendronization is highly effective in controlling the inter-chain interactions of fluorene-based polymers.

不同代数树枝化聚芴的时间分辨荧光动力学研究结果表明，溶液状态下的发光为单指数衰减行为，而薄膜状态下的发光为多指数衰减行为，且其发光寿命随树枝化代数增加而增长，表明树枝化基团抑制了邻近的聚芴分子之间能量传递所致的激发态能量耗散。

Calculations show that under irradiation of nano- or picosecond laser pulses gold particles of submicrometer size can easily be heated to several hundred kelvins, the thermal effects is confined in a space less than tens of nanometers.

通过计算可知，采用脉宽为皮秒或者纳秒级的激光照射纳米吸收物时，颗粒很容易被加热到几百开，而且热效应仅限于几十纳米的空间范围内。

Rapid advances in a number of critical areas coupled with the development of integrated optical devices and sub-picosecond pulse generators make the future of monomode fiber optic communication system look increasingly bright.

近年来对几种重要器件的研究有了新的突破，特别是集成光导器件和次微微秒脉冲发生器的研制成功，使单模光纤通信有了极美好的前景。

The temporal evolution in transient reflectivity change ?嵇/R is composed of two relaxing parts: a fast component with time sub picoseconds and a slow component with time constant ranging from tens of ps to hundreds of ps.

瞬时反射率的变化主要由两个部份所构成：弛缓时间在次皮秒级(sub-picosecond)的快弛缓行为，以及弛缓时间在数十到百个皮秒的慢弛缓行为。

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失