论文部分内容阅读
为了解决传统声光可调谐滤光器(AOTF)成像模糊的缺点,设计了一种新的AOTF。该器件通过在传统的AOTF的出射孔后面放置一个自行设计的等边色散棱镜来实现对衍射光的色散展宽进行补偿,明显地提高了成像的对比度和空间分辨率。将此器件附加在传统光学显微镜上,获得了一种新型的光谱显微成像仪器。其光谱分辨率在575nm波长处为4.2nm、成像空间分辨率为2μm、图像采集速度为毫秒量级。为基于AOTF的光谱成像技术在生物医学等领域的更广泛的应用奠定了基础。
In order to solve the shortcomings of traditional acousto-optic tunable filter (AOTF) imaging, a new AOTF is designed. The device compensates for the dispersion broadening of the diffracted light by placing a self-designed isotropic dispersion prism behind the exit aperture of a conventional AOTF, significantly improving imaging contrast and spatial resolution. By attaching this device to a conventional optical microscope, a new type of spectral microscopy imaging instrument was obtained. Its spectral resolution is 4.2nm at a wavelength of 575nm, the spatial resolution of the image is 2μm, and the image acquisition speed is on the order of milliseconds. Which laid the foundation for the wider application of AOTF-based spectral imaging in biomedicine and other fields.