课题基金 / 基金详情

BREAST CANCER: DEMONSTRATION OF FREQUENCY DOMAIN DIFFUSIVE EMISSION TOMOGRAPHY

BREAST CANCER: DEMONSTRATION OF FREQUENCY DOMAIN DIFFUSIVE EMISSION TOMOGRAPHY
乳腺癌:频域扩散发射断层扫描演示
批准号:
6657653
负责人:
JOHN C SCHOTLAND
金额:
$22.55万
依托单位:
依托单位国家:
美国
项目类别:
财政年份:
2002
资助国家:
美国
项目状态:
已结题
起止时间:
2002-09-01 至 2003-08-31

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中文摘要
翻译
最近,人们认识到近场光学方法 可以用来开发一种新的显微镜形式,具有显著的 亚波长空间分辨率特征。通过以下方式获得的图像 然而,这种近场方法很难解释,而且 与下面的样本结构没有明显的关系 学习。因此,人们对开发一种 近场反散射问题的解。它 事实证明,这个问题可以通过一种方法来解决,这种方法 与用来解决反问题的方法密切相关。 扩散成像。这些问题之间的联系源于 扩散波和消逝波之间有很深的类比,因为 后者携带有关亚波长长度尺度的信息。通过 利用这个类比,我们开发了一个分析 可用于重建索引的逆散射过程 近场散射数据的折射率。经验经验 此方法的验证正在进行中,并承诺允许 用光学显微镜对分子细节进行可视化。
英文摘要
Recently it has become appreciated that near-field optical methods may be used to develop a new form of microscopy with the remarkable feature of subwavelength spatial resolution. The images obtained with such near-field methods, however, are difficult to interpret and are not related in an obvious way to the structure of the sample under study. For this reason, there is substantial interest in developing a solution to the inverse scattering problem in the near field. It turns out that this problem may be solved by an approach which is closely related to that used for solving the inverse problem in diffusion imaging. The connection between these problems arises from a deep analogy between diffusing waves and evanescent waves, since the latter carries information about subwavelength length scales. By exploiting this analogy, we have developed an analytic inverse-scattering procedure that may be used to reconstruct the index of refraction from near-field scattering data. Exp erimental validation of this method is in progress and promises to allow the visualization of molecular detail with light microscopy.
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Image Reconstruction Algorithms for Optical Tomography
  • 批准号:
    7465432
  • 项目类别:
  • 资助金额:
    $34.85万
  • 财政年份:
    2007
  • 负责人:
    JOHN C SCHOTLAND
  • 依托单位:
Image Reconstruction Algorithms for Optical Tomography
  • 批准号:
    7322416
  • 项目类别:
  • 资助金额:
    $35.02万
  • 财政年份:
    2007
  • 负责人:
    JOHN C SCHOTLAND
  • 依托单位:
Image Reconstruction Algorithms for Optical Tomography
  • 批准号:
    7608722
  • 项目类别:
  • 资助金额:
    $34.83万
  • 财政年份:
    2007
  • 负责人:
    JOHN C SCHOTLAND
  • 依托单位:
IMAGE RECONSTRUCTION ALGORITHMS FOR DIFFUSION TOMOGRAPHY
  • 批准号:
    6977459
  • 项目类别:
  • 资助金额:
    $0.68万
  • 财政年份:
    2004
  • 负责人:
    JOHN C SCHOTLAND
  • 依托单位:
海外基金