molecular beam

简明释义

分子束

英英释义

例句

1.The researchers utilized a molecular beam (分子束) to study the interactions between different gas molecules.

研究人员利用一个molecular beam (分子束) 来研究不同气体分子之间的相互作用。

2.By adjusting the angle of the molecular beam (分子束), scientists were able to improve the accuracy of their measurements.

通过调整molecular beam (分子束) 的角度，科学家们能够提高测量的准确性。

3.The team developed a new technique for generating a stable molecular beam (分子束) for their experiments.

该团队开发了一种新技术，用于生成稳定的molecular beam (分子束) 以进行实验。

4.Using a molecular beam (分子束), we can analyze the chemical composition of the materials with high precision.

使用molecular beam (分子束)，我们可以高精度地分析材料的化学成分。

5.In this experiment, the molecular beam (分子束) was directed towards a target surface to observe scattering phenomena.

在这个实验中，molecular beam (分子束) 被指向一个目标表面以观察散射现象。

作文

The study of atomic and molecular physics has led to numerous advancements in our understanding of the fundamental building blocks of matter. One of the most fascinating techniques that has emerged from this field is the use of a molecular beam (分子束) to investigate the properties of molecules with unprecedented precision. A molecular beam consists of a directed flow of neutral or charged molecules that are emitted from a source, allowing researchers to study their interactions with other particles or surfaces in a controlled environment.The creation of a molecular beam involves several steps. First, the molecules of interest are vaporized in a vacuum chamber, where they are then collimated into a narrow beam. This process allows for a high degree of control over the speed and direction of the molecules, making it possible to study their behavior under various conditions. The ability to manipulate these beams is crucial for experiments that require precise measurements, such as in scattering studies or chemical reaction dynamics.One of the key advantages of using a molecular beam is the extremely low density of the molecules in the beam, which minimizes interactions between them. This isolation enables scientists to observe individual molecular events without interference from neighboring molecules. For example, researchers can use a molecular beam to investigate how specific molecules react when they collide with surfaces, providing insights into surface chemistry and catalysis.Furthermore, molecular beams can be utilized in conjunction with various detection methods, such as mass spectrometry and laser spectroscopy. These techniques allow for the identification and analysis of the molecular species present in the beam, offering valuable information about their structure and dynamics. By combining these methods, scientists can gain a deeper understanding of complex chemical processes and the fundamental principles that govern them.In addition to their applications in basic research, molecular beams also play a significant role in the development of new materials and technologies. For instance, they are used in the fabrication of thin films and nanostructures, where precise control over the deposition of molecules is essential. The ability to create well-defined layers at the molecular level opens up new possibilities in fields such as electronics, photonics, and nanotechnology.Moreover, the use of molecular beams extends beyond the laboratory. They have practical applications in industries ranging from pharmaceuticals to materials science. In drug development, for example, understanding molecular interactions through molecular beam techniques can lead to more effective medications with fewer side effects. Similarly, in materials science, tailoring the properties of new materials through controlled molecular deposition can result in innovative solutions for various technological challenges.In summary, the concept of a molecular beam (分子束) represents a powerful tool in the realm of atomic and molecular physics. Its ability to produce highly controlled and directed flows of molecules enables researchers to explore the intricate details of molecular interactions and reactions. As technology continues to advance, the applications of molecular beams are likely to expand, paving the way for new discoveries and innovations in science and industry. The ongoing research in this area not only enhances our understanding of the microscopic world but also contributes to the development of cutting-edge technologies that can improve our daily lives.

原子和分子物理学的研究使我们对物质基本构成单元的理解取得了许多进展。其中一个最引人入胜的技术是使用molecular beam（分子束）以空前的精度研究分子的性质。molecular beam由从源头发射的中性或带电分子的定向流组成，使研究人员能够在受控环境中研究它们与其他粒子或表面的相互作用。创建molecular beam涉及几个步骤。首先，感兴趣的分子在真空室中被气化，然后被准直成一束狭窄的光束。这个过程允许对分子的速度和方向进行高度控制，使得在各种条件下研究它们的行为成为可能。操纵这些光束的能力对于需要精确测量的实验至关重要，例如在散射研究或化学反应动态中。使用molecular beam的一个关键优势是光束中分子的极低密度，这最小化了它们之间的相互作用。这种隔离使科学家能够观察到单个分子事件而不受邻近分子的干扰。例如，研究人员可以利用molecular beam研究特定分子在与表面碰撞时的反应，从而提供对表面化学和催化的见解。此外，molecular beams可以与各种检测方法结合使用，如质谱法和激光光谱法。这些技术允许识别和分析光束中存在的分子物种，提供有关其结构和动态的宝贵信息。通过结合这些方法，科学家可以更深入地理解复杂的化学过程及其基本原理。除了在基础研究中的应用外，molecular beams在新材料和技术的发展中也发挥着重要作用。例如，它们被用于薄膜和纳米结构的制造，其中对分子沉积的精确控制至关重要。在分子层面上创建明确定义的层的能力为电子学、光子学和纳米技术等领域开辟了新的可能性。此外，molecular beams的使用超越了实验室。它们在制药、材料科学等多个行业中具有实际应用。例如，在药物开发中，通过molecular beam技术理解分子间的相互作用可以导致更有效的药物，副作用更少。同样，在材料科学中，通过控制分子沉积来定制新材料的性质可以为各种技术挑战提供创新解决方案。总之，molecular beam（分子束）的概念代表了原子和分子物理学领域的一种强大工具。它能够产生高度受控和定向的分子流，使研究人员能够探索分子相互作用和反应的微妙细节。随着技术的不断进步，molecular beams的应用可能会扩展，为科学和工业的新发现和创新铺平道路。这一领域的持续研究不仅增强了我们对微观世界的理解，也为改善我们日常生活的尖端技术的发展做出了贡献。