查询词典 picosecond

Among picosecond fluorescence spectroscopy setup, sample cell, one side is concave, and collimate optics system were designed and made. Which improve fluorescence collect rate 30%, and is key to experiment.

在荧光光谱装置中，设计制作了一侧为凹面的样品盒和准直光学系统，提高荧光的收集效率30%，对实验成功起了关键的作用。

It is shown that this kind of film a-CdSe has an excellent photoelectric characteristics of instaneous response to picosecond laser pulse by testing the responsive time of those detectors using ultrashort light train pulses emitting from a colliding pulse mode -locking Nd:YAG laser.

用对撞脉冲锁模Nd：YAG激光器产生的超短光脉冲序列对探测器的响应时间进行检测，结果表明a-CdSe薄膜对皮秒10~(-12秒级的超短光脉冲作用具有良好的瞬态响应光电特性，探讨a-CdSe薄膜快速弛豫过程的内在机理。

The object of this study is to cancerous and normal cells intimacy of hematoporphyrin derivative for diagnosis and therapy cancer, fluorescence spectra of cancerous and normal cells are measured using a ultrashort pulses laser spectral technique and picosecond time-correlated single-photon counting system.

研究用于癌症诊断与治疗的光敏剂血卟啉(hematoporphyrin derivative， HPD)对人体癌细胞与正常细胞的亲和性，采用超短脉冲激光光谱技术和皮秒时间相关单光子计数系统，测量经血卟啉培养的活体癌细胞与正常细胞的荧光光谱，观测到癌细胞样品在创645nm处具有特有的光谱谱峰；测量不同浓度血卟啉荧光光谱，观测到随着血卟啉浓度的逐渐增大，在645nm处出现的光谱峰也随之显著增强。

The time resolved polarized fluorescence of oriented R phycoerythrin single crystal from red alga Porphyra yezoensis was studied in picosecond time scale.

本文在皮秒时域内研究红藻条斑紫菜R－藻红蛋白单晶在不同晶轴取向下的偏振荧光动力学过程。

The propagation of picosecond deep ultraviolet laser pulse at wavelength of 193 nm in air is numerically investigated.

我们对193nm深紫外激光在大气中的传输进行了研究。

Still, a picosecond is not so fast compared to the speed of some chemical reactions in liing cells.

并且一皮秒还远不能与活细胞的化学反应速度相提并论。

In 2000, we showed that single DNA bases can dissipate U energy in less than one picosecond.

康指出在2000年，我们显示单个DNA碱基能在少于一皮秒时间内转移能量。

The applications of picosecond high-power diode-pumped solid state lasers in the field of biomedical imaging and material science were analyzed.

本文介绍了皮秒高功率半导体泵浦的固体激光器在生物成像和材料科学领域的应用。

These" bright" energy states dissipate the energy much faster, in less than one picosecond .

这些"亮"能量状态转移速度更快，少于一皮秒。

Surface generation and detection of phonons by picosecond light pulses .

激光声子的激发、探测及其应用。

The absorption and distribution of chromium were studied in ryeusing nutrient culture technique and pot experiment.

采用不同浓度K2CrO4(0，0.4，0.8和1.2 mmol/L)的Hoagland营养液处理黑麦幼苗，测定铬在黑麦体内的亚细胞分布、铬化学形态及不同部位的积累。

By analyzing theory foundation of mathematical morphology in the digital image processing, researching morphology arithmetic of the binary Image, discussing two basic forms for the least structure element: dilation and erosion.

通过分析数学形态学在图像中的理论基础，研究二值图像的形态分析算法，探讨最小结构元素的两种基本形态：膨胀和腐蚀；分析了数学形态学复杂算法的基本原理，把数学形态学的部分并行处理理念引入到家实际应用中。