SOO-CHANG PEIJIAN-JIUN DING2009-03-042018-07-062009-03-042018-07-06200310847529http://scholars.lib.ntu.edu.tw/handle/123456789/304074http://ntur.lib.ntu.edu.tw/bitstream/246246/142386/1/10.pdfhttps://www.scopus.com/inward/record.uri?eid=2-s2.0-0042575188&doi=10.1364%2fJOSAA.20.000522&partnerID=40&md5=7ca89ae00fa6b3f5d77f3827f690a1dbThe offset Fourier transform (offset FT), offset fractional Fourier transform (offset FRFT), and offset linear canonical transform (offset LCT) are the space-shifted and frequency-modulated versions of the original transforms. They are more general and flexible than the original ones. We derive the eigenfunctions and the eigenvalues of the offset FT, FRFT, and LCT. We can use their eigenfunctions to analyze the self-imaging phenomena of the optical system with free spaces and the media with the transfer function exp[j(h 2x2 + h1x + h0)] (such as lenses and shifted lenses). Their eigenfunctions are also useful for resonance phenomena analysis, fractal theory development, and phase retrieval. © 2003 Optical Society of America.Eigenvalues and eigenfunctions; Fourier transforms; Optical transfer function; Linear canonical transforms (LCT); Optical systemsjournal article10.1364/josaa.20.0005222-s2.0-0042575188WOS:000181226100013http://ntur.lib.ntu.edu.tw/bitstream/246246/142386/1/10.pdf