Sonoluminescent tomography of strongly scattering media.
Sonoluminescent tomography of strongly scattering media.
复制标题
强散射介质的声致发光断层扫描。
作者：
L. Wang;Q. Shen
一种新的光学成像技术被称为声致发光断层扫描，用于强散射介质的无创横切面成像。利用连续波超声在介质内部产生的声致发光，通过光栅扫描介质，产生嵌入在散射介质中的物体的二维图像。图像对比度高，空间分辨率好。超声的空间分辨率受焦点光斑大小的限制，可以通过收紧焦点来提高分辨率。这种廉价的成像技术在医学和其他与散射介质相关的领域具有潜在的应用前景。
A novel optical imaging technique called sonoluminescent tomography was developed for cross-sectional imaging of strongly scattering media noninvasively. Sonoluminescence, which was generated internally in the medium by cw ultrasound, was used to produce a two-dimensional image of an object embedded in a scattering medium by means of raster scanning the medium. The image had a high contrast and good spatial resolution. The spatial resolution was limited by the focal-spot size of the ultrasound, and one could improve the resolution by tightening the focus. This inexpensive imaging technique has potential applications in medicine and other fields related to scattering media.