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Figure 4
Second harmonic generation microscopy in transmission for a melt grown crystal of BCNBP. White dotted line: central area where growth occurred. Green: areas where growth induced polarity developed. (a) Linear optical image. (b) Two sectors show polarity. (c) A phase-sensitive experiment showing an SHG effect only for the upper sector. (d) Same as (c), but sample turned around 180°.

IUCrJ
Volume 3| Part 3| May 2016| Pages 219-225
ISSN: 2052-2525
doi:10.1107/S2052252516006709