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  • 2019 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference
  • OSA Technical Digest (Optica Publishing Group, 2019),
  • paper eg_p_10

Nonlinear splitting of optical trap of metallic nanoparticles

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Abstract

Recently, the role of ultrafast pulsed excitation in laser trapping of dielectric nanoparticles has been explored [1–4] and it was observed that optical Kerr effect (OKE) plays an important role in determining the stability of the trap [2–4]. Here, we theoretically investigate trapping behaviour of metallic (silver) nanoparticles and studied the effect of OKE (up to sixth order) under high repetition-rate femtosecond pulsed excitation. We observe that the trapping potential well splits into two wells along axial direction, enabling the study of long-range interaction between the metal nanoparticles.

© 2019 IEEE

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