A method is provided for manufacturing a holographic medium by recording
holograms in transmission geometry, and applying a reflective layer to
one side of the holographic recording material after recording is
completed (alternatively, for example, the playback system may contain a
reflective surface or mirror). For readout, the reference beam is
incident to the media from a side opposite the reflective layer. This
beam propagates through the media to the reflective layer on the opposite
side, and is reflected back through the media for readout of the
transmission hologram. The diffracted hologram signal also exits the
media on the side without the reflective layer, where it can be recovered
by a detector on the same side as the laser source. Alternatively, the
readout reference beam is positioned so that the incident beam reads out
the hologram, and both the reference beam and diffracted hologram are
reflected back through the media.