Efficient optical phase-conjugate (PC) signals in four kinds of novel
polyester films containing cyanoazobenzene units in the side chain are
reported. One of them can efficiently generate only the photoinduced
anisotropy (PA) component of PC signal, while the other three films ca
n simultaneously generate two types of PC signals, PA and holographic
components. These polymers have good potential not only as a phase con
jugator but also as a polarization-sensitive hologram-recording materi
al.