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Construction and Operation of a Light-driven Gold Nanorod Rotary Motor System
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Engineering
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JoVE Journal Engineering
Construction and Operation of a Light-driven Gold Nanorod Rotary Motor System

Construction and Operation of a Light-driven Gold Nanorod Rotary Motor System

DOI:
10.3791/57947-v

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09:48 min

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June 30, 2018

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, ,
1Department of Physics,Chalmers University of Technology

Chapters

  • 00:04Title
  • 00:48Circularly Polarized Optical Tweezers for Nanoparticle Rotation
  • 03:05Measurement Instrumentation
  • 04:46Experimental Procedure
  • 06:57Results: Measurements of Intensity and Autocorrelation for a Trapped, Rotating Nanorod and Dark Field Spectroscopy for a Trapped Nanorod
  • 08:17Conclusion

Summary

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Plasmonic gold nanorods can be trapped in liquids and rotated at kHz frequencies using circularly-polarized optical tweezers. Introducing tools for Brownian dynamics analysis and light scatteringspectroscopy leads to a powerful system for research and application in numerous fields of science.

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Keywords: Gold NanorodRotary MotorOptical TweezersCircularly Polarized LightNano ParticleBrownian DynamicsLight Scattering SpectroscopyOptical Angular MomentumOptical Tweezer SetupLinearly Polarized LaserKeplerian Telescope50-50 Beam SplitterTrapping ObjectiveQuarter Wave Plate

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