A new optical configuration producing one-step 360 degrees rainbow hologram
s is presented. The method makes use of two concave mirrors in confocal pos
ition, with an annular aperture between the two. An experimental demonstrat
ion is given. (C) 2001 Optical Society of America OCIS codes: 090.0090, 090
.1970, 090.2870, 090.5640.