excited atom

简明释义

受激原子

英英释义

例句

1.When a photon hits an atom, it can cause the atom to become an excited atom, which means it has absorbed energy.

当光子撞击一个原子时，它可以使这个原子变为激发态原子，这意味着它吸收了能量。

2.In quantum mechanics, the energy levels of an excited atom are quantized and specific.

在量子力学中，激发态原子的能级是量子化的且是特定的。

3.The study of excited atoms is crucial for understanding atomic spectra.

研究激发态原子对于理解原子光谱至关重要。

4.The fluorescence observed in certain materials is due to the transition of excited atoms back to their ground state.

某些材料中观察到的荧光是由于激发态原子返回基态的转变。

5.In lasers, the process of stimulating emission relies on the presence of excited atoms that can release photons.

在激光中，刺激发射的过程依赖于存在能够释放光子的激发态原子。

作文

In the realm of quantum physics, the concept of an excited atom plays a crucial role in understanding atomic behavior and interactions. An excited atom refers to an atom that has absorbed energy, causing one or more of its electrons to move to a higher energy level or orbital. This phenomenon is essential for various processes, including the emission of light and the functioning of lasers. When an atom is in its ground state, its electrons occupy the lowest available energy levels. However, when energy is supplied—whether through heat, light, or electrical energy—the atom can become excited and transition to a higher energy state.The significance of excited atoms can be observed in everyday life. For instance, the colorful lights seen in neon signs are a result of excited atoms. When electricity passes through the gas inside the neon tube, it energizes the neon atoms, causing them to emit light as they return to their ground state. This process of light emission is known as fluorescence, which is a direct consequence of the existence of excited atoms.Moreover, excited atoms are fundamental to the operation of various technologies, such as lasers. In a laser, a medium containing excited atoms is stimulated to emit coherent light. The process involves pumping energy into the medium, resulting in a population inversion where more atoms are in the excited state than in the ground state. When these excited atoms return to their lower energy states, they release photons that are all in phase, creating the highly focused and powerful beam characteristic of lasers.In addition to their practical applications, excited atoms also provide insight into the nature of matter and the universe. Spectroscopy, the study of how matter interacts with electromagnetic radiation, relies on the transitions of excited atoms to identify elements and compounds. When an atom is excited, it emits light at specific wavelengths corresponding to the energy differences between its electron orbits. By analyzing the emitted light, scientists can determine the composition of distant stars and galaxies, contributing to our understanding of the cosmos.Furthermore, the concept of excited atoms extends into the field of chemistry. Chemical reactions often involve the transfer of energy that can lead to the formation of excited atoms. These excited atoms can then participate in further reactions, influencing the rates and outcomes of chemical processes. Understanding how excited atoms behave allows chemists to manipulate reactions for desired results, such as in the development of new materials or pharmaceuticals.In conclusion, the notion of an excited atom is pivotal in both theoretical and applied sciences. From the vivid colors of neon lights to the intricate workings of lasers and the exploration of the universe, excited atoms are integral to numerous phenomena and technologies. As we continue to explore the depths of quantum physics, the role of excited atoms will undoubtedly remain a key focus, revealing the mysteries of the atomic world and enhancing our technological advancements.

在量子物理的领域中，激发态原子的概念在理解原子行为和相互作用方面起着至关重要的作用。激发态原子是指一个原子吸收了能量，导致其一个或多个电子移动到更高的能量水平或轨道。这一现象对于各种过程至关重要，包括光的发射和激光的运作。当一个原子处于基态时，其电子占据最低可用能量级。然而，当通过热、光或电能提供能量时，原子可以变得激发并过渡到更高的能量状态。激发态原子的重要性可以在日常生活中观察到。例如，霓虹灯中看到的五光十色的灯光就是激发态原子的结果。当电流通过霓虹管内的气体时，它使霓虹原子获得能量，导致它们在返回基态时发出光。这种光发射的过程被称为荧光，这直接源于激发态原子的存在。此外，激发态原子是各种技术运作的基础，例如激光。在激光中，包含激发态原子的介质被刺激以发出相干光。该过程涉及向介质泵送能量，导致人口反转，即处于激发状态的原子数量超过处于基态的数量。当这些激发态原子返回到较低的能量状态时，它们释放的光子都是相位一致的，从而产生激光特有的高度聚焦和强大的光束。除了实际应用，激发态原子还提供了对物质和宇宙本质的洞察。光谱学，即研究物质如何与电磁辐射相互作用的学科，依赖于激发态原子的跃迁来识别元素和化合物。当一个原子被激发时，它以特定波长发出光，这些波长对应于其电子轨道之间的能量差。通过分析发射的光，科学家可以确定遥远恒星和星系的组成，从而增进我们对宇宙的理解。此外，激发态原子的概念扩展到了化学领域。化学反应通常涉及能量的转移，这可能导致激发态原子的形成。这些激发态原子可以参与进一步的反应，影响化学过程的速率和结果。理解激发态原子的行为使化学家能够操纵反应以达到所需的结果，例如在新材料或药物的开发中。总之，激发态原子的概念在理论和应用科学中都是至关重要的。从霓虹灯的鲜艳颜色到激光的复杂运作以及对宇宙的探索，激发态原子是无数现象和技术的核心。随着我们继续探索量子物理的深度，激发态原子的角色无疑将保持重点，揭示原子世界的奥秘，并增强我们的技术进步。