Hsu, I-JenI-JenHsuSun, Chia-WeiChia-WeiSunLu, Chih-WeiChih-WeiLuCHIH-CHUNG YANGCHUN-PIN CHIANGCHII-WANN LIN2009-02-112018-06-292009-02-112018-06-2920031559128Xhttp://ntur.lib.ntu.edu.tw//handle/246246/128197https://www.scopus.com/inward/record.uri?eid=2-s2.0-0037428344&doi=10.1364%2fAO.42.000227&partnerID=40&md5=d9265895bb51d5802eac8655ecd92578We propose and demonstrate what is to our knowledge a novel technique of improving the spatial resolution of an optical coherence tomography (OCT) system given a non-Gaussian light source spectrum. By using dispersive materials in the reference arm of the OCT system, the resultant dispersion variation led to a full-width at half maximum (FWHM) of the interference fringe envelope smaller than the Fourier transform-limited value of a Gaussian spectral shape with the same spectral FWHM, at the expense of significant tails. The effects of the tails, which would blur the OCT images, were tremendously reduced with a retrieval algorithm. Simulation results and processed OCT scanning images have shown the capability of the proposed technique. © 2003 Optical Society of America.application/pdf771974 bytesapplication/pdfen-USAlgorithms; Computer simulation; Fourier transforms; Signal processing; Tomography; Scanning images; Coherent light10.1364/AO.42.0002272-s2.0-0037428344WOS:000180232000007http://ntur.lib.ntu.edu.tw/bitstream/246246/128197/1/23.pdf