anti-Stokes phenomena

简明释义

反斯托克斯现象;

英英释义

Anti-Stokes phenomena refer to the processes in which photons are emitted with energy greater than that of the incident photons, typically observed in certain types of scattering and fluorescence.

反斯托克斯现象是指光子以比入射光子更高的能量发射的过程,通常在某些类型的散射和荧光中观察到。

例句

1.The study of anti-Stokes phenomena 反斯托克斯现象 can provide insights into energy transfer processes in biological systems.

反斯托克斯现象 反斯托克斯现象 的研究可以提供生物系统中能量转移过程的见解。

2.Researchers are investigating anti-Stokes phenomena 反斯托克斯现象 for potential applications in quantum computing.

研究人员正在调查反斯托克斯现象 反斯托克斯现象 在量子计算中的潜在应用。

3.In spectroscopy, the observation of anti-Stokes phenomena 反斯托克斯现象 helps scientists understand molecular vibrations.

在光谱学中,观察到的反斯托克斯现象 反斯托克斯现象 帮助科学家理解分子振动。

4.The increase in intensity of anti-Stokes phenomena 反斯托克斯现象 at higher temperatures indicates a greater population of excited states.

在更高温度下,反斯托克斯现象 反斯托克斯现象 强度的增加表明激发态的粒子数量增加。

5.By analyzing anti-Stokes phenomena 反斯托克斯现象, scientists can determine the temperature of distant stars.

通过分析反斯托克斯现象 反斯托克斯现象,科学家可以确定遥远星体的温度。

作文

The field of optics is rich with fascinating phenomena, one of which is the anti-Stokes phenomena. This term refers to a process in which light is scattered by molecules, resulting in a shift of energy that produces photons of higher energy than the incident light. In simpler terms, when a photon interacts with a molecule and loses energy, it can cause the molecule to vibrate at a higher energy level, leading to the emission of a photon with greater energy than the original. This is contrary to the more commonly known Stokes scattering, where the emitted photons have lower energy. Understanding anti-Stokes phenomena is crucial for various applications, including spectroscopy, imaging, and even medical diagnostics.In spectroscopy, anti-Stokes phenomena plays a vital role in Raman spectroscopy, a technique used to observe vibrational, rotational, and other low-frequency modes in a system. When light interacts with a sample, it can either gain or lose energy, leading to the generation of both Stokes and anti-Stokes lines in the spectrum. The intensity ratio of these lines provides information about the temperature of the sample and its molecular composition. This makes anti-Stokes phenomena not just an interesting physical concept but also a practical tool in scientific research.Moreover, in the realm of photonics, anti-Stokes phenomena is harnessed in the development of advanced imaging techniques. For instance, fluorescence microscopy often utilizes this phenomenon to enhance the contrast of images. By employing specific wavelengths of light, researchers can excite molecules to emit higher-energy photons, allowing for clearer and more detailed images of biological samples. This application underscores the significance of anti-Stokes phenomena in advancing our understanding of complex biological systems.Another notable application of anti-Stokes phenomena is in the field of thermometry. The anti-Stokes signal can be sensitive to temperature changes; thus, it can be utilized for non-contact temperature measurements in various materials. This capability is especially useful in industrial processes where traditional temperature sensors may not be feasible due to harsh conditions. The ability to measure temperature accurately through anti-Stokes phenomena opens up new possibilities for monitoring and controlling processes in real-time.Furthermore, the implications of anti-Stokes phenomena extend into the medical field, particularly in the development of diagnostic tools. Techniques such as surface-enhanced Raman scattering (SERS) leverage this phenomenon to detect biomarkers in bodily fluids, enabling early diagnosis of diseases such as cancer. The sensitivity and specificity offered by anti-Stokes phenomena make it a powerful ally in the pursuit of personalized medicine and targeted therapies.In conclusion, the anti-Stokes phenomena is a remarkable aspect of light-matter interaction that has significant implications across various fields, from fundamental science to practical applications. Its ability to provide insights into molecular behavior, enhance imaging techniques, measure temperature, and aid in medical diagnostics highlights its importance in both research and industry. As we continue to explore the depths of optical phenomena, the anti-Stokes phenomena will undoubtedly remain a key area of interest, driving innovation and discovery in the years to come.

光学领域充满了迷人的现象,其中之一就是反斯托克斯现象。这个术语指的是一种过程,其中光被分子散射,导致能量的转移,从而产生比入射光更高能量的光子。简单来说,当一个光子与一个分子相互作用并失去能量时,它可以使分子在更高的能量水平上振动,导致发射出比原始光子能量更高的光子。这与更常见的斯托克斯散射相反,后者发射的光子能量较低。理解反斯托克斯现象对于各种应用至关重要,包括光谱学、成像甚至医学诊断。在光谱学中,反斯托克斯现象在拉曼光谱学中发挥着重要作用,这是一种用于观察系统中振动、旋转和其他低频模式的技术。当光与样品相互作用时,它可以获得或失去能量,从而在光谱中生成斯托克斯线和反斯托克斯线。 这些线的强度比率提供了有关样品温度及其分子组成的信息。这使得反斯托克斯现象不仅是一个有趣的物理概念,也是科学研究中的实用工具。此外,在光子学领域,反斯托克斯现象在先进成像技术的发展中得到了利用。例如,荧光显微镜通常利用这一现象来增强图像的对比度。通过使用特定波长的光,研究人员可以激发分子发射更高能量的光子,从而获得生物样本的更清晰、更详细的图像。这个应用突显了反斯托克斯现象在推动我们理解复杂生物系统方面的重要性。反斯托克斯现象的另一个显著应用是在温度计领域。反斯托克斯信号对温度变化敏感,因此可以用于在各种材料中进行非接触式温度测量。这一能力在工业过程中尤为重要,因为传统温度传感器可能由于恶劣条件而无法使用。通过反斯托克斯现象准确测量温度,为实时监测和控制过程开辟了新的可能性。此外,反斯托克斯现象的影响还扩展到医学领域,特别是在诊断工具的发展中。表面增强拉曼散射(SERS)等技术利用这一现象来检测体液中的生物标志物,从而实现早期疾病诊断。反斯托克斯现象所提供的灵敏度和特异性使其成为个性化医疗和靶向治疗追求中的强大盟友。总之,反斯托克斯现象是光与物质相互作用的一个显著方面,在各个领域都有重要的影响,从基础科学到实际应用。它能够深入了解分子行为、增强成像技术、测量温度以及帮助医学诊断,突显了它在研究和工业中的重要性。随着我们继续探索光学现象的深度,反斯托克斯现象无疑将继续成为一个关键的研究领域,推动未来几年的创新和发现。

相关单词

phenomena

phenomena详解:怎么读、什么意思、用法