  The effect of green and ultraviolet laser light on
Ba$_{0.8}$Sr$_{0.2}$TiO$_3$/LaMnO$_3$ heterostructure electrical resistance was
studied. In 80-200 K range illumination induces transient resistance component
at ~15% of the steady-state value, the time constant associated with the
transient component is ~12 s. The negative photoresistance effect is found
under green, infrared and ultraviolet illumination.
