title: Spectrally encoded spectral imaging.
abstract: Spectral imaging, i.e. the acquisition of the spectrum emitted from each sample location, is a powerful tool for a wide variety of applications in science and technology. For biomedical applications, spectral imaging is important for accurate analysis of a biological specimen and for assisting clinical diagnosis, however it could be challenging mainly due to the typically low damage thresholds and strict time constraints. Here, we present a fiber-based technique termed spectrally encoded spectral imaging (SESI), in which a fully emitted spectrum is captured from each resolvable point of a specimen using an additional lateral scanning of the spectrally encoded line. The technique is demonstrated by capturing spectral data cubes of a color print and of a green leaf, and its potential advantage in signal-to-noise ratio is theoretically discussed. Using a miniaturized grating-lens configuration, SESI could be conducted endoscopically, allowing minimally invasive color and spectral imaging in remote locations of the body.
authors: Department of Biomedical Engineering, Technion-Israel Institute of Technology, Technion City, Haifa, Israel.
authors: Avraham
authors: A
authors: Abramov
authors: Limor
authors: L
authors: Minai
authors: Dvir
authors: D
authors: Yelin
mesh_terms: D000465:Algorithms; D003124:Colorimetry / Q000379:methods*; D018515:Plant Leaves / Q000737:chemistry*; D013057:Spectrum Analysis / Q000379:methods*