Electric field induced orientational order of gold nanorods in dilute organic suspensions
作者： Jake Fontana , Greice KB da Costa , Joao M Pereira , Jawad Naciri , Banahalli R Ratna
DOI: 10.1063/1.4942969
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摘要: The electric field controlled alignment of gold nanorods offers a paradigm for anisotropic molecules with the potential wide variety phases and structures. We experimentally study optical absorption from nanorod suspensions aligned using external fields. show that these depends linearly on orientational order parameter. provide evidence critical needed to orient is proportional volume depolarization anisotropy. Utilizing this dependence, we demonstrate two different sizes each population can be controlled. also develop technique determine imaginary parts longitudinal transverse susceptibilities nanorods. ability selectively address specific populations in mixture fields may have significant future display optical...
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