Electronic Resource
Woodbury, NY
:
American Institute of Physics (AIP)
Applied Physics Letters
56 (1990), S. 307-309
ISSN:
1077-3118
Source:
AIP Digital Archive
Topics:
Physics
Notes:
Crystals of α-[(4'-methoxyphenyl)methylene]-4-nitro-benzeneacetonitrile exhibit powder second-harmonic generation (SHG) efficiencies under 1.06 μm irradiation several times that of 2-methyl-4-nitroaniline. We have identified three distinct, solution-grown polymorphs which show marked variation in SHG efficiency. Controlled transformation between these polymorphs can be made either solvent assisted or thermally. One polymorph shows a 25-fold increase in SHG efficiency when the irradiation wavelength is changed to 1.32 μm while the others show a small or no increase.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1063/1.103288
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