title: High resolution study of permanent photoinduced reflectivity changes and charge-order domain switching in Bi(0.3)Ca(0.7)MnO(3).
abstract: We report near-field and far-field optical microscopic studies of photoinduced effects in charge-ordered Bi(0.3)Ca(0.7)MnO(3). Unlike previously reported transient photoinduced effects in manganites, we have observed permanent reflectivity changes following local sample illumination with 488 nm light. High-resolution images of exposed regions reveal optical contrast on a submicrometer scale. This observation indicates that photonic band-gap structures may be created using holographic recording in manganites. We also present images of photoinduced charge-order domain switching in Bi(0.3)Ca(0.7)MnO(3).
authors.affiliation: Electrical and Computer Engineering Department, University of Maryland, College Park, MD 20742, USA.
authors.forename: I I
authors.initials: II
authors.lastname: Smolyaninov
authors.forename: V N
authors.initials: VN
authors.lastname: Smolyaninova
authors.forename: C C
authors.initials: CC
authors.lastname: Davis
authors.forename: B G
authors.initials: BG
authors.lastname: Kim
authors.forename: S W
authors.initials: SW
authors.lastname: Cheong
authors.forename: R L
authors.initials: RL
authors.lastname: Greene