Light structuring photonic hook via temperature mediated effects

Maya Hen Shor Peled, Paolo Maioli, Alina Karabchevsky

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review


Optical methods have been studied and used extensively for diagnostics and treatment of bio-tissues and cells. Yet, the quality of these methods is still biased by low optical contrast, background noise and heating. Therefore, the ability to track an object's location in cells and tissues is lacking. Here, we report on a method of optically moving gold nanoparticles in a temperature-mediated manner via a structured light - photonic hook. Since continuous wave (CW) generated photonic hooks are extremely weak in low-contrast media, we amplify the optical forces by using pulsed illumination. Our system consists of a micro-cylinder illuminated by an incident Gaussian pulse, and a mask controlling the asymmetry of the incident light. We show that the generated optical forces are around fifteen orders of magnitude larger than by illuminating with a continuous wave of equivalent average power. The photonic hook is applied to a gold nanoparticle embedded in liquid. By investigating the thermo-optical properties of metallic nanoparticles, we present the displacement of the gold nanoparticle, as a result of the momentum exchange. The displacement and changes in polarizability of the gold nanoparticle are examined.

Original languageEnglish
Title of host publicationNanophotonics IX
EditorsDavid L. Andrews, Angus J. Bain, Jean-Michel Nunzi
ISBN (Electronic)9781510651388
StatePublished - 1 Jan 2022
EventNanophotonics IX 2022 - Virtual, Online
Duration: 9 May 202220 May 2022

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X


ConferenceNanophotonics IX 2022
CityVirtual, Online


  • nanojet
  • nanophotonics
  • optical forces
  • photonic hook
  • subwavelength focusing

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering


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