emission band

简明释义

发射光谱带

英英释义

例句

1.The emission band (发射带) of the material was analyzed to determine its optical properties.

对材料的emission band (发射带)进行了分析，以确定其光学特性。

2.Researchers used a laser to excite the sample and measured the emission band (发射带) of light emitted.

研究人员使用激光激发样本并测量所发出的光的emission band (发射带)。

3.In environmental studies, the emission band (发射带) of pollutants can indicate their concentration in the atmosphere.

在环境研究中，污染物的emission band (发射带)可以指示它们在大气中的浓度。

4.The fluorescence spectrum revealed a strong peak in the emission band (发射带) around 520 nm.

荧光光谱显示在520纳米附近有一个强峰在发射带 (发射带)。

5.The satellite collected data on the emission band (发射带) from various sources of light pollution.

卫星收集了来自各种光污染源的emission band (发射带)的数据。

作文

The study of light and its properties has always fascinated scientists, particularly in the field of spectroscopy. One of the key concepts in this area is the idea of an emission band, which refers to a specific range of wavelengths emitted by a substance when it is excited by energy. This phenomenon occurs when electrons in an atom or molecule absorb energy and then release it as light when they return to their ground state. Understanding emission bands is crucial for various applications, including identifying chemical compounds and studying astronomical objects.For instance, when we look at the spectrum of a star, we can observe distinct emission bands that indicate the presence of certain elements. Each element has a unique fingerprint in the form of its emission band, allowing astronomers to determine the composition of distant celestial bodies. This process not only helps us understand the universe better but also provides insights into the life cycles of stars and the formation of galaxies.In laboratory settings, scientists often use instruments like spectrophotometers to measure emission bands. By analyzing the light emitted from a sample, researchers can identify the specific wavelengths present and thus infer the identity of the substances involved. This technique is widely used in fields such as chemistry, biology, and environmental science. For example, in environmental monitoring, detecting specific emission bands can help identify pollutants in the air or water, enabling timely interventions to protect public health.Moreover, the concept of emission bands extends beyond traditional spectroscopy. In recent years, advancements in technology have led to new methods of capturing and analyzing light emissions. Techniques such as fluorescence microscopy utilize emission bands to visualize biological processes at the cellular level. By tagging molecules with fluorescent dyes that emit light at specific wavelengths, researchers can track cellular activities in real time. This application has revolutionized our understanding of complex biological systems and disease mechanisms.In conclusion, the term emission band encapsulates a fundamental aspect of how light interacts with matter. Its implications are vast, ranging from astrophysics to environmental science and biomedical research. By continuing to explore and understand emission bands, we unlock the potential to make significant discoveries and advancements in various scientific fields. As we delve deeper into the mysteries of light and its interactions, the importance of emission bands will undoubtedly remain a central theme in the quest for knowledge and innovation.

光及其特性的研究一直吸引着科学家，特别是在光谱学领域。其中一个关键概念是发射带的概念，它指的是当物质在能量激发下发出的一定波长范围。这种现象发生在原子或分子的电子吸收能量后，当它们返回基态时以光的形式释放能量。理解发射带对于各种应用至关重要，包括识别化合物和研究天体。例如，当我们观察一颗恒星的光谱时，可以看到明显的发射带，这表明存在某些元素。每种元素在其发射带中都有独特的指纹，使天文学家能够确定遥远天体的组成。这个过程不仅帮助我们更好地理解宇宙，还提供了关于恒星生命周期和星系形成的见解。在实验室环境中，科学家通常使用光谱光度计等仪器来测量发射带。通过分析样品发出的光，研究人员可以识别出存在的特定波长，从而推断相关物质的身份。这种技术广泛应用于化学、生物学和环境科学等领域。例如，在环境监测中，检测特定的发射带可以帮助识别空气或水中的污染物，从而及时采取干预措施以保护公众健康。此外，发射带的概念超越了传统光谱学。近年来，技术的进步导致了捕捉和分析光发射的新方法。荧光显微镜等技术利用发射带在细胞水平上可视化生物过程。通过用在特定波长下发光的荧光染料标记分子，研究人员可以实时跟踪细胞活动。这一应用彻底改变了我们对复杂生物系统和疾病机制的理解。总之，术语发射带概括了光与物质相互作用的基本方面。其影响广泛，涵盖了从天体物理学到环境科学和生物医学研究的各个领域。通过继续探索和理解发射带，我们解锁了在各种科学领域取得重大发现和进步的潜力。随着我们深入探讨光的奥秘及其相互作用，发射带的重要性无疑将继续成为追求知识和创新的中心主题。