picosecond

简明释义

英[ˈpiːkəʊˌsekənd]美[ˈpiːkəˌsekənd]

n. 皮秒；微微秒；万亿分之一秒

英英释义

单词用法

同义词

反义词

例句

1.Picosecond: One thousandth of a nanosecond.

皮秒：千分之一纳秒。

2.We proposed a novel method to analyze the propagation of sub-picosecond optical pulses through semiconductor optical amplifiers (SOA), fully considering spectral dispersion of ultrashort pulses.

通过考虑脉冲频谱的增益色散，提出了一个分析亚皮秒光脉冲在半导体光放大器(SOA)中传输的新思路。

3.The amplified spontaneous emission in dye solutions excited with powerpul picosecond light pulses is studied in two respects:1. spectral peak shift and the emission width;

用超短光脉冲激励染料溶液，进行超荧光的研究：1。超荧光光谱峰移动和光谱宽度；

4.The picosecond transient sampling gate is mainly applied in laser fusion and high energy physics experiments for single high-speed pulse real-time sampling.

皮秒级瞬态取样门主要应用于激光聚变实验和高能物理实验中，对单次高速脉冲进行实时取样。

5.Passively synchronized femtosecond and picosecond laser pulses are obtained by achieving cross mode-locking induced by cross-phase modulation in a dual-wavelength femtosecond ti: sapphire laser.

在双波长钛宝石激光器中通过交叉相位调制实现了飞秒和皮秒脉冲的交叉锁模，得到了被动同步的飞秒和皮秒脉冲。

6.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。

7.High-speed cameras can capture events that happen in picoseconds (皮秒).

高速摄影机可以捕捉发生在皮秒（picoseconds）内的事件。

8.A picosecond (皮秒) is one trillionth of a second.

皮秒（picosecond）是十亿分之一秒。

9.In experiments, scientists measured the time it took for electrons to move in picoseconds (皮秒).

在实验中，科学家测量电子移动所需的时间为皮秒（picoseconds）。

10.The laser pulse lasted only a few picoseconds (皮秒) before dissipating.

激光脉冲持续了仅仅几皮秒（picoseconds）就消散了。

11.The synchronization of data transfer in fiber optics occurs on the scale of picoseconds (皮秒).

光纤中的数据传输同步发生在皮秒（picoseconds）的尺度上。

作文

In the realm of physics and technology, time is often measured in various units, with one of the smallest being the picosecond. A picosecond is one trillionth of a second, or 10^-12 seconds. To put this into perspective, light travels approximately 0.3 millimeters in a picosecond. This minuscule measurement plays a crucial role in fields such as telecommunications, computer science, and quantum mechanics, where understanding and manipulating time at such a small scale can lead to groundbreaking advancements.In telecommunications, for example, the speed of data transmission is paramount. Fiber optic cables transmit signals at nearly the speed of light, and engineers must consider delays that occur due to various factors including the properties of the materials used. Even a delay of a few picoseconds can significantly impact the performance of a network, especially as we push towards faster internet speeds and more efficient data transfer methods. The ability to measure and optimize these delays can lead to improved technologies that enhance our daily communication.Moreover, in the realm of computer science, processors have become incredibly fast, with clock speeds reaching into the gigahertz range. This means that modern CPUs can perform billions of cycles per second, where each cycle may take only a few picoseconds to complete. Engineers and scientists are constantly working to reduce the time taken for each operation, pushing the boundaries of what is possible within the constraints of current technology. Understanding the significance of a picosecond allows developers to create more efficient algorithms and systems that can handle vast amounts of data quickly and effectively.Quantum mechanics also delves into the world of the picosecond. In this field, particles behave in ways that defy classical physics, and the interactions between them can happen in incredibly short time frames. Researchers studying phenomena such as electron transitions or photon emissions often measure these events in picoseconds. By capturing and analyzing these fleeting moments, scientists can gain insights into the fundamental workings of the universe, which can lead to innovations in quantum computing and other advanced technologies.The importance of the picosecond extends beyond theoretical applications; it has real-world implications that affect our daily lives. For instance, advancements in laser technology have made it possible to produce pulses of light that last only a few picoseconds. These ultrafast lasers are used in various applications, from medical procedures to industrial cutting and welding. By harnessing the power of light at such a brief duration, we can achieve precision and efficiency that were previously unimaginable.In conclusion, the picosecond may seem like an abstract concept, but its implications are profound and far-reaching. From enhancing communication technologies to unraveling the mysteries of quantum mechanics, the ability to understand and manipulate time at this scale opens up new possibilities for innovation. As we continue to explore the limits of science and technology, the picosecond will undoubtedly play a pivotal role in shaping our future, reminding us that even the smallest units of time can have significant impacts on our world.

在物理和技术的领域中，时间常常以不同的单位进行测量，其中最小的单位之一是皮秒。皮秒是十亿分之一秒，或10^-12秒。为了更好地理解这个概念，光在皮秒内大约可以传播0.3毫米。这个微小的测量在电信、计算机科学和量子力学等领域发挥着至关重要的作用，在这些领域，理解和操控如此小的时间尺度可以带来突破性的进展。例如，在电信行业，数据传输的速度至关重要。光纤电缆以接近光速的速度传输信号，工程师必须考虑由于材料特性等各种因素导致的延迟。即使是几皮秒的延迟，也可能对网络性能产生重大影响，尤其是随着我们向更快的互联网速度和更高效的数据传输方法的推进。能够测量和优化这些延迟，可以推动改善技术，从而增强我们日常通信的质量。此外，在计算机科学领域，处理器变得非常快速，时钟频率已达到吉赫兹范围。这意味着现代CPU每秒可以执行数十亿次周期，而每个周期可能只需几皮秒即可完成。工程师和科学家们不断努力减少每个操作所需的时间，推动当前技术可能性的边界。理解皮秒的重要性使开发人员能够创建更高效的算法和系统，从而快速有效地处理大量数据。量子力学也探讨了皮秒的世界。在这一领域，粒子的行为违背了经典物理学，它们之间的相互作用可能发生在极短的时间框架内。研究电子跃迁或光子发射等现象的研究人员通常以皮秒为单位测量这些事件。通过捕捉和分析这些短暂的瞬间，科学家可以深入了解宇宙的基本运作，这可能导致量子计算和其他先进技术的创新。皮秒的重要性不仅限于理论应用；它还对我们的日常生活产生了实际影响。例如，激光技术的进步使得能够产生仅持续几皮秒的光脉冲。这些超快激光在医疗程序、工业切割和焊接等各种应用中得到了应用。通过利用如此短暂持续时间的光的力量，我们能够实现以前无法想象的精确性和效率。总之，皮秒可能看起来是一个抽象的概念，但其影响深远且广泛。从增强通信技术到揭示量子力学的奥秘，理解和操控这一尺度的时间的能力为创新打开了新的可能性。随着我们继续探索科学和技术的极限，皮秒无疑将在塑造我们未来方面发挥关键作用，提醒我们即使是最小的时间单位也能对我们的世界产生重大影响。