diffraction limit

简明释义

衍射极限

英英释义

例句

1.New imaging techniques aim to surpass the diffraction limit (衍射极限) to reveal finer details.

新的成像技术旨在超越diffraction limit（衍射极限），以揭示更精细的细节。

2.The diffraction limit (衍射极限) sets a fundamental barrier to the resolution in optical systems.

在光学系统中，diffraction limit（衍射极限）设定了分辨率的基本障碍。

3.The resolution of the microscope is constrained by the diffraction limit (衍射极限), making it difficult to observe smaller structures.

显微镜的分辨率受到diffraction limit（衍射极限）的限制，这使得观察更小的结构变得困难。

4.Astronomers must consider the diffraction limit (衍射极限) when designing telescopes for observing distant stars.

天文学家在设计用于观察遥远星星的望远镜时，必须考虑到diffraction limit（衍射极限）。

5.In photography, achieving sharp images can be challenging due to the diffraction limit (衍射极限) of the camera lens.

在摄影中，由于相机镜头的diffraction limit（衍射极限），获得清晰的图像可能会很有挑战性。

作文

The concept of the diffraction limit is a fundamental principle in optics that describes the resolution limit of optical systems. When we think about how we perceive images through lenses, whether in a camera, a microscope, or even our own eyes, we must consider the effects of light waves. Light behaves as both a particle and a wave, and when it encounters an obstacle or aperture, it bends around the edges—a phenomenon known as diffraction. This bending of light limits the ability of optical instruments to resolve fine details. The diffraction limit essentially sets a boundary on how closely two points can be resolved as separate entities. In practical terms, the diffraction limit can be calculated using the wavelength of light and the numerical aperture of the optical system. For instance, in microscopy, shorter wavelengths of light can achieve higher resolutions because they can distinguish between finer details. This is why electron microscopes, which utilize electron beams instead of visible light, can achieve resolutions far beyond those of light microscopes; electrons have much shorter wavelengths than visible light. Understanding the diffraction limit is crucial for researchers and engineers who design optical instruments. They must take this limit into account when developing new technologies that require high-resolution imaging. For example, in the field of astronomy, telescopes must be designed to minimize the effects of diffraction in order to capture clearer images of distant celestial objects. Similarly, in photography, lens manufacturers strive to create lenses that can operate effectively near the diffraction limit to ensure high-quality images.Furthermore, the diffraction limit has implications beyond just optical systems. It also plays a significant role in fields such as telecommunications, where the transmission of information through optical fibers is affected by diffraction. As data rates increase and the demand for bandwidth grows, understanding and mitigating the effects of diffraction becomes increasingly important.In conclusion, the diffraction limit is a key concept that affects various fields involving optics and imaging. It represents the ultimate resolution limit imposed by the wave nature of light and serves as a guiding principle for the design and application of optical systems. As technology continues to advance, ongoing research into overcoming or working within the constraints of the diffraction limit will undoubtedly lead to new innovations that enhance our ability to observe and understand the world around us.

“衍射极限”是光学中的一个基本概念，描述了光学系统的分辨率极限。当我们考虑通过镜头感知图像时，无论是在相机、显微镜还是我们自己的眼睛中，都必须考虑光波的影响。光既表现为粒子又表现为波，当它遇到障碍物或孔径时，它会在边缘弯曲——这一现象称为衍射。这种光的弯曲限制了光学仪器分辨细节的能力。“衍射极限”本质上设定了两个点可以被分辨为独立实体的最小距离。在实际操作中，“衍射极限”可以通过光的波长和光学系统的数值孔径来计算。例如，在显微镜中，较短的光波长可以实现更高的分辨率，因为它们能够区分更细的细节。这就是为什么电子显微镜利用电子束而不是可见光，可以达到远超光学显微镜的分辨率；因为电子的波长远短于可见光。理解“衍射极限”对于设计光学仪器的研究人员和工程师至关重要。他们必须在开发需要高分辨率成像的新技术时考虑这一极限。例如，在天文学领域，望远镜必须设计得尽量减少衍射的影响，以便捕捉到更清晰的遥远天体图像。同样，在摄影中，镜头制造商努力创造能够在“衍射极限”附近有效工作的镜头，以确保高质量的图像。此外，“衍射极限”不仅在光学系统中具有影响力。在电信等领域，通过光纤传输信息也受到衍射的影响。随着数据速率的增加和带宽需求的增长，理解和减轻衍射的影响变得越来越重要。总之，“衍射极限”是影响涉及光学和成像的各个领域的关键概念。它代表了由光的波动性质施加的最终分辨率限制，并作为光学系统设计和应用的指导原则。随着技术的不断进步，克服或在“衍射极限”约束内工作的持续研究无疑将导致新的创新，增强我们观察和理解周围世界的能力。