SPECTRAL ENCODING HETERODYNE INTERFEROMETRY TECHNIQUES FOR IMAGING

摘要

Systems, arrangements and methods for obtaining three-dimensional imaging data are provided. For example, a broadband light source (100) can provide a particular radiation. A first electro-magnetic radiation can be focused and diffracted, and then provided to at least one sample (140) to generate a spectrally encoded line. A second Electro-magnetic radiation may be provided to a reference, which may include a double-pass rapidly-scanning optical delay (160), where the first and second Electro-- magnetic radiation's can be based on the particular radiation. An interference between a third Electro-magnetic radiation (associated with the first Electro-magnetic radiation) and a fourth Electro-magnetic radiation (associated with the second Electro-magnetic radiation) can be detected. The spectrally encoded line may be scanned over the sample in a direction approximately perpendicular to the line. Image data containing three-dimensional information can then be obtained based on the interference. The exemplary imaging methods and systems can be used in a small fiber optic or endoscopic probe.