linear absorption coefficient

简明释义

线性吸收系数

英英释义

例句

1.A higher linear absorption coefficient 线性吸收系数 indicates that the material is better at absorbing light.

较高的线性吸收系数表示该材料更善于吸收光。

2.In spectroscopy, the linear absorption coefficient 线性吸收系数 is crucial for identifying substances based on their light absorption characteristics.

在光谱学中，线性吸收系数对于根据物质的光吸收特性来识别物质至关重要。

3.Researchers measured the linear absorption coefficient 线性吸收系数 of the new polymer to evaluate its effectiveness in solar panels.

研究人员测量了新聚合物的线性吸收系数以评估其在太阳能电池板中的有效性。

4.The linear absorption coefficient 线性吸收系数 can vary significantly between different wavelengths of light.

不同波长的光之间，线性吸收系数可能会有显著差异。

5.The linear absorption coefficient 线性吸收系数 of the material determines how much light is absorbed as it passes through.

材料的线性吸收系数决定了光在通过时被吸收的程度。

作文

In the field of physics and engineering, understanding various properties of materials is crucial for a wide range of applications. One such property that plays a significant role in the study of light and its interaction with matter is the linear absorption coefficient. The linear absorption coefficient is a measure of how much light is absorbed by a material per unit distance as it travels through that material. This concept is essential in fields such as optics, telecommunications, and even medical imaging, where understanding how light interacts with different substances can lead to better technologies and techniques.The linear absorption coefficient is typically denoted by the symbol α (alpha) and is expressed in units of inverse length, such as cm⁻¹. When light passes through a medium, some of its energy is absorbed by the material, which can be due to various mechanisms such as electronic transitions, vibrational modes, or other physical interactions. The higher the value of the linear absorption coefficient, the more effective the material is at absorbing light. This characteristic can vary significantly between different materials and depends on factors such as wavelength, temperature, and the physical state of the material.For example, in optical fibers used for telecommunications, it is crucial to minimize the linear absorption coefficient to ensure that signals can travel long distances without significant loss of intensity. Engineers strive to create materials with low absorption coefficients to enhance the performance of these systems. In contrast, materials with high linear absorption coefficients are often used in applications like photothermal therapy, where the goal is to absorb light effectively to generate heat and destroy targeted cells.Moreover, the linear absorption coefficient can also provide valuable information about the composition and structure of materials. By measuring how much light is absorbed at different wavelengths, scientists can infer details about the molecular structure and concentration of substances in a sample. This technique is widely used in chemistry and environmental science to analyze pollutants in water or air by examining their absorption characteristics.In addition to practical applications, the linear absorption coefficient also serves as a fundamental parameter in theoretical physics. It is often involved in equations that describe the propagation of light in various media, helping scientists understand phenomena such as scattering, reflection, and transmission. By incorporating the linear absorption coefficient into these models, researchers can predict how light behaves in complex environments, leading to advancements in both theoretical knowledge and practical technology.In conclusion, the linear absorption coefficient is a vital concept that bridges the gap between theory and practice in the study of light-matter interactions. Its implications stretch across various fields, from telecommunications to environmental monitoring, highlighting its importance in our understanding of the physical world. As technology continues to evolve, the role of the linear absorption coefficient will undoubtedly remain significant, guiding innovations and enhancing our capabilities in manipulating light for various applications.

在物理和工程领域，理解材料的各种特性对广泛的应用至关重要。其中一个在光及其与物质相互作用的研究中发挥重要作用的特性是线性吸收系数。线性吸收系数是指光在穿过材料时每单位距离被材料吸收的量。这一概念在光学、电信，甚至医学成像等领域至关重要，因为理解光如何与不同物质相互作用可以导致更好的技术和方法。线性吸收系数通常用符号α（阿尔法）表示，单位为逆长度，如cm⁻¹。当光通过介质时，其能量的一部分会被材料吸收，这可能是由于电子跃迁、振动模式或其他物理相互作用等多种机制。线性吸收系数的值越高，材料对光的吸收效果就越显著。这个特性在不同材料之间可能会有显著差异，并且取决于波长、温度和材料的物理状态等因素。例如，在用于电信的光纤中，降低线性吸收系数至关重要，以确保信号能够在长距离内传输而不会显著损失强度。工程师们努力创造具有低吸收系数的材料，以提高这些系统的性能。相反，具有高线性吸收系数的材料通常用于光热疗法等应用，其中目标是有效吸收光以产生热量并摧毁靶细胞。此外，线性吸收系数还可以提供有关材料成分和结构的宝贵信息。通过测量不同波长下的光吸收量，科学家可以推断样本中物质的分子结构和浓度等细节。这种技术在化学和环境科学中广泛应用，通过检查污染物的吸收特性来分析水或空气中的污染物。除了实际应用外，线性吸收系数还是理论物理中的一个基本参数。它通常涉及描述光在各种介质中传播的方程，帮助科学家理解散射、反射和透射等现象。通过将线性吸收系数纳入这些模型，研究人员可以预测光在复杂环境中的行为，从而推动理论知识和实际技术的发展。总之，线性吸收系数是一个重要的概念，桥接了光-物质相互作用研究中的理论与实践。它的影响跨越多个领域，从电信到环境监测，突显了它在我们理解物理世界中的重要性。随着技术的不断发展，线性吸收系数的角色无疑将继续保持重要，为创新引导方向，增强我们在各种应用中操控光的能力。